On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see?Â* Whats so special about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see?Â* If you wear a bright red
tshirt, you aren't as visible as wearing a hi-vis jacket.Â* Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in the
dusk) into visible light. Presumably mainly available in certain colours.

Some, intended to be used at night, have strips that include glass or
plastic beads that reflect light (from torches or car headlamps) back in
the direction the light source is.

--
Max Demian

On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a bright red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in the
dusk) into visible light.

I never realised this - there's more UV at dusk? Or just the same amount, and less visible light? I guess it's to do with diffraction of sunlight at the horizon?

Presumably mainly available in certain colours.

Why are they always yellow or green? Just to do with the chemicals in the dyes that can convert UV into visible?

Some, intended to be used at night, have strips that include glass or
plastic beads that reflect light (from torches or car headlamps) back in
the direction the light source is.

I once saw somebody being quite ingenious. He'd broken down and had no available light source from the vehicle (dead electrics presumably, no hazard lights etc). He'd put two hi vis jackets on the back, and every time a car approached, he flashed his torch at them.

"Commander Kinsey" wrote in message
news
On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian
wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a bright red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Or just the same amount, and less visible light?

Less of the long wavelength red end of the spectrum, anyway.

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Just to do with the chemicals in the dyes that can convert UV into
visible?

To some extent.

Some, intended to be used at night, have strips that include glass or
plastic beads that reflect light (from torches or car headlamps) back in
the direction the light source is.

I once saw somebody being quite ingenious. He'd broken down
and had no available light source from the vehicle (dead electrics
presumably, no hazard lights etc). He'd put two hi vis jackets on the
back, and every time a car approached, he flashed his torch at them.

Why wasnt the other car headlights on the hi vis jackets enough ?

On 27/08/2019 22:38, Max Demian wrote:
On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see?Â* Whats so special about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see?Â* If you wear a bright
red tshirt, you aren't as visible as wearing a hi-vis jacket.Â* Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in the
dusk) into visible light. Presumably mainly available in certain colours.

Some, intended to be used at night, have strips that include glass or
plastic beads that reflect light (from torches or car headlamps) back in
the direction the light source is.

On a rainy day it's hard for drivers to see pedestrians and cyclists so
it's a good idea to wear or carry something fluorescent. ... Many people
don't realise it but€¦ fluorescent colours don't show up in the dark or
'glow in the dark'. To be seen by drivers at night you need something
reflective.

https://brightkidz.co.uk/initiatives...high-vis-work/


--
Bod

On Wed, 28 Aug 2019 06:20:16 +0100, Bod wrote:

On 27/08/2019 22:38, Max Demian wrote:
On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a bright
red tshirt, you aren't as visible as wearing a hi-vis jacket. Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in the
dusk) into visible light. Presumably mainly available in certain colours.

Some, intended to be used at night, have strips that include glass or
plastic beads that reflect light (from torches or car headlamps) back in
the direction the light source is.

On a rainy day it's hard for drivers to see pedestrians and cyclists so
it's a good idea to wear or carry something fluorescent. ... Many people
don't realise it but€¦ fluorescent colours don't show up in the dark or
'glow in the dark'. To be seen by drivers at night you need something
reflective.

https://brightkidz.co.uk/initiatives...high-vis-work/

Or just put your lights on?

On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed wrote:



"Commander Kinsey" wrote in message
news
On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian
wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a bright red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Or just the same amount, and less visible light?

Less of the long wavelength red end of the spectrum, anyway.

Sunsets are orange.

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow. A google image search shows 75% yellow and 25% orange, although I can't remember the last time I saw an orange.

Just to do with the chemicals in the dyes that can convert UV into
visible?

To some extent.

Some, intended to be used at night, have strips that include glass or
plastic beads that reflect light (from torches or car headlamps) back in
the direction the light source is.

I once saw somebody being quite ingenious. He'd broken down
and had no available light source from the vehicle (dead electrics
presumably, no hazard lights etc). He'd put two hi vis jackets on the
back, and every time a car approached, he flashed his torch at them.

Why wasnt the other car headlights on the hi vis jackets enough ?

Because they weren't shining directly towards them. It was certainly working, I could seer the jackets 5 or 10 times brighter when he used the torch.

"Commander Kinsey" wrote in message
news
On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news
On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian
wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but thats just different words for the same thing.

Or just the same amount, and less visible light?

Less of the long wavelength red end of the spectrum, anyway.

Sunsets are orange.

Nope, red and red is adjacent to orange in the spectrum anyway.

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the real world.

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Just to do with the chemicals in the dyes that can convert UV into
visible?

To some extent.

Some, intended to be used at night, have strips that include glass or
plastic beads that reflect light (from torches or car headlamps) back
in
the direction the light source is.

I once saw somebody being quite ingenious. He'd broken down
and had no available light source from the vehicle (dead electrics
presumably, no hazard lights etc). He'd put two hi vis jackets on the
back, and every time a car approached, he flashed his torch at them.

Why wasnt the other car headlights on the hi vis jackets enough ?

Because they weren't shining directly towards them. It was certainly
working, I could seer the jackets 5 or 10 times brighter when he used the
torch.

On Thu, 29 Aug 2019 06:09:53 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH another 96 lines of troll****

--
Website (from 2007) dedicated to the 85-year-old trolling senile
cretin from Oz:
https://www.pcreview.co.uk/threads/r...d-faq.2973853/

On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed wrote:



"Commander Kinsey" wrote in message
news
On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian
wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but thats just different words for the same thing.

No, one is bending round corners, eg long wave radio goes further as it can go over mountains. The other is bending when it goes into another medium, eg shining a torch into water. One bends high frequencies more, the other bends low frequencies more.

Or just the same amount, and less visible light?

Less of the long wavelength red end of the spectrum, anyway.

Sunsets are orange.

Nope, red and red is adjacent to orange in the spectrum anyway.

Near enough. My point was there is more of the long wavelength end of the spectrum at sunset. You were incorrect!

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

I have no desire to see more health and softy bull****.

A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the real world.

A google search is very representative.

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Just to do with the chemicals in the dyes that can convert UV into
visible?

To some extent.

Some, intended to be used at night, have strips that include glass or
plastic beads that reflect light (from torches or car headlamps) back
in
the direction the light source is.

I once saw somebody being quite ingenious. He'd broken down
and had no available light source from the vehicle (dead electrics
presumably, no hazard lights etc). He'd put two hi vis jackets on the
back, and every time a car approached, he flashed his torch at them..

Why wasnt the other car headlights on the hi vis jackets enough ?

Because they weren't shining directly towards them. It was certainly
working, I could seer the jackets 5 or 10 times brighter when he used the
torch.

"Commander Kinsey" wrote in message
news
On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news
On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian

wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in
the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but thats just different words for the same thing.

No,

Yep.

one is bending round corners, eg long wave radio goes further as it can go
over mountains.

Thats not what is involved in there being more UV at sunset.

The other is bending when it goes into another medium, eg shining a torch
into water.

Thats not what is involved in there being more UV at sunset.

One bends high frequencies more, the other bends low frequencies more.

More UV at sunset isnt about bending.

Or just the same amount, and less visible light?

Less of the long wavelength red end of the spectrum, anyway.

Sunsets are orange.

Nope, red and red is adjacent to orange in the spectrum anyway.

Near enough. My point was there is more of the long wavelength end of the
spectrum at sunset.

Not when talking about what ends up at the hi vis vest.

You were incorrect!

Nope, I never am.

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

I have no desire to see more health and softy bull****.

It isnt H&S bull****.

A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the real world.

A google search is very representative.

Google image results arent.

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, thats the most obvious example.

Just to do with the chemicals in the dyes that can convert UV into
visible?

To some extent.

Some, intended to be used at night, have strips that include glass or
plastic beads that reflect light (from torches or car headlamps) back
in
the direction the light source is.

I once saw somebody being quite ingenious. He'd broken down
and had no available light source from the vehicle (dead electrics
presumably, no hazard lights etc). He'd put two hi vis jackets on the
back, and every time a car approached, he flashed his torch at them.

Why wasnt the other car headlights on the hi vis jackets enough ?

Because they weren't shining directly towards them. It was certainly
working, I could seer the jackets 5 or 10 times brighter when he used
the
torch.

On Thu, 29 Aug 2019 10:31:58 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH another 145!!! lines of the two clinically insane prize idiots'
troll****

....and much better air in here!

--
"Anonymous" to trolling senile Rot Speed:
"You can **** off as you know less than pig **** you sad
little ignorant ****."
MID:

On 29/08/2019 08:52, Peeler wrote:
On Thu, 29 Aug 2019 06:09:53 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH another 96 lines of troll****

Glad you agree that Uncle Peter is a worthless bag of filth.

On 29/08/2019 20:06, Peeler wrote:
On Thu, 29 Aug 2019 10:31:58 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH another 145!!! lines of the two clinically insane prize idiots'
troll****

...and much better air in here!

So you say that Uncle Peter is a walking vomit? I thoroughly agree

On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed wrote:



"Commander Kinsey" wrote in message
news
On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian

wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in
the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but thats just different words for the same thing.

No,

Yep.

No.
Diffraction is light encountering an obstacle, like the edge of a planet: https://en.wikipedia.org/wiki/Diffraction
Refraction is light encountering a different medium, like going from the air into a lake: https://en.wikipedia.org/wiki/Refraction

one is bending round corners, eg long wave radio goes further as it can go
over mountains.

Thats not what is involved in there being more UV at sunset.

The other is bending when it goes into another medium, eg shining a torch
into water.

Thats not what is involved in there being more UV at sunset.

One bends high frequencies more, the other bends low frequencies more..

More UV at sunset isnt about bending.

You said above: "Thats why sunsets are red, the red light is reflected off the crap in the air."
But er.... we see sunsets as red, which means the red end of the spectrum must be reaching our eyes more than the blue end.

Or just the same amount, and less visible light?

Less of the long wavelength red end of the spectrum, anyway.

Sunsets are orange.

Nope, red and red is adjacent to orange in the spectrum anyway.

Near enough. My point was there is more of the long wavelength end of the
spectrum at sunset.

Not when talking about what ends up at the hi vis vest.

How would that be different from what ends up at your eye when looking at a sunset?

You were incorrect!

Nope, I never am.

[falls off chair]

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

I have no desire to see more health and softy bull****.

It isnt H&S bull****.

That's what hivis is all about - ****ing safety.

A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the real world.

A google search is very representative.

Google image results arent.

Same coding.

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, thats the most obvious example.

Why do railways need different colours?

"Commander Kinsey" wrote in message
news
On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news
On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian

wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about
the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a
bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in
the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but thats just different words for the same thing.

No,

Yep.

No.

Yep

Diffraction is light encountering an obstacle, like the edge of a planet:
https://en.wikipedia.org/wiki/Diffraction

Thats just one form of diffraction.

Refraction is light encountering a different medium, like going from the
air into a lake: https://en.wikipedia.org/wiki/Refraction

Thats just one form or refraction.

one is bending round corners, eg long wave radio goes further as it can
go over mountains.

Thats not what is involved in there being more UV at sunset.

The other is bending when it goes into another medium, eg shining a
torch into water.

Thats not what is involved in there being more UV at sunset.

One bends high frequencies more, the other bends low frequencies more.

More UV at sunset isnt about bending.

You said above: "Thats why sunsets are red, the red light is reflected
off the crap in the air."

Because that is the reason for more UV at sunset.

But er.... we see sunsets as red, which means the red end of the spectrum
must be reaching our eyes more than the blue end.

Wrong, as always. We see sunsets as red because the sky
around the setting sun is red because of the red being
reflected off what is in the sky around the setting sun.

That doesnt happen with the UV as much so thats
why you end up with more UV at the observer at sunset.

Or just the same amount, and less visible light?

Less of the long wavelength red end of the spectrum, anyway.

Sunsets are orange.

Nope, red and red is adjacent to orange in the spectrum anyway.

Near enough. My point was there is more of the long wavelength end of
the
spectrum at sunset.

Not when talking about what ends up at the hi vis vest.

How would that be different from what ends up at your eye when looking at
a sunset?

It isnt, but thats not why sunsets look red, thats because
the red is coming from the sky around the setting sun.

You were incorrect!

Nope, I never am.

[falls off chair]

Get a higher chair so you fall on your head next time.

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

I have no desire to see more health and softy bull****.

It isnt H&S bull****.

That's what hivis is all about - ****ing safety.

Its also about who works for the railways
etc with the different color for them etc.

Same with the cops and paramedics and fireys
etc at car crashes etc, helps to be able to see
who is who quickly at the scene.

A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the real
world.

A google search is very representative.

Google image results arent.

Same coding.

Nope.

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, thats the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

....and much better air in here, again!

--
Website (from 2007) dedicated to the 85-year-old trolling senile
cretin from Oz:
https://www.pcreview.co.uk/threads/r...d-faq.2973853/

On 31/08/2019 07:24, Peeler wrote:
...and much better air in here, again!

Agreed that Uncle Peter is a festering pustule on a weasel's rump.

On Fri, 30 Aug 2019 20:19:57 +0100, Rod Speed wrote:



"Commander Kinsey" wrote in message
news
On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian

wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about
the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a
bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent in
the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but thats just different words for the same thing.

No,

Yep.

No.

Yep

Diffraction is light encountering an obstacle, like the edge of a planet:
https://en.wikipedia.org/wiki/Diffraction

Thats just one form of diffraction.

Refraction is light encountering a different medium, like going from the
air into a lake: https://en.wikipedia.org/wiki/Refraction

Thats just one form or refraction.

They're different things entirely, go read Physics 101.

one is bending round corners, eg long wave radio goes further as it can
go over mountains.

Thats not what is involved in there being more UV at sunset..

The other is bending when it goes into another medium, eg shining a
torch into water.

Thats not what is involved in there being more UV at sunset..

One bends high frequencies more, the other bends low frequencies more.

More UV at sunset isnt about bending.

You said above: "Thats why sunsets are red, the red light is reflected
off the crap in the air."

Because that is the reason for more UV at sunset.

That would make more red, duh.

But er.... we see sunsets as red, which means the red end of the spectrum
must be reaching our eyes more than the blue end.

Wrong, as always. We see sunsets as red because the sky
around the setting sun is red because of the red being
reflected off what is in the sky around the setting sun.

It reflects into our eyes, that's why we see it, therefore the red is reaching us, and also any hi-vis jackets. If the blue end (including UV) was reflected more, sunsets would be blue.

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

I have no desire to see more health and softy bull****.

It isnt H&S bull****.

That's what hivis is all about - ****ing safety.

Its also about who works for the railways
etc with the different color for them etc.

Same with the cops and paramedics and fireys
etc at car crashes etc, helps to be able to see
who is who quickly at the scene.

They tend to have "FIRE" written on them. In the case of railway workers, there are only railway workers. And what's with the different sirens for police, fire, ambulance, I doubt anyone knows which is which, especially since they've all started using about three different wails when one doesn't get the morons out of their way.

A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the real
world.

A google search is very representative.

Google image results arent.

Same coding.

Nope.

Prove it. There's no reason it wouldn't be.

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, thats the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

They're all orange, every last one of them.

Commander Kinsey wrote:
On Fri, 30 Aug 2019 20:19:57 +0100, Rod Speed
wrote:


"Commander Kinsey" wrote in message
news
On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian

wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? What's so special
about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a
bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does
it convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially
prevalent in the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. That's why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but that's just different words for the same thing.

No,

Yep.

No.

Yep

Diffraction is light encountering an obstacle, like the edge of a
planet: https://en.wikipedia.org/wiki/Diffraction

That's just one form of diffraction.

Refraction is light encountering a different medium, like going
from the air into a lake: https://en.wikipedia.org/wiki/Refraction

That's just one form or refraction.

They're different things entirely, go read Physics 101.

one is bending round corners, eg long wave radio goes further as
it can go over mountains.

That's not what is involved in there being more UV at sunset.

The other is bending when it goes into another medium, eg shining
a torch into water.

That's not what is involved in there being more UV at sunset.

One bends high frequencies more, the other bends low frequencies
more.

More UV at sunset isnt about bending.

You said above: "That's why sunsets are red, the red light is
reflected off the crap in the air."

Because that is the reason for more UV at sunset.

That would make more red, duh.

But er.... we see sunsets as red, which means the red end of the
spectrum must be reaching our eyes more than the blue end.

Wrong, as always. We see sunsets as red because the sky
around the setting sun is red because of the red being
reflected off what is in the sky around the setting sun.

It reflects into our eyes, that's why we see it, therefore the red is
reaching us, and also any hi-vis jackets. If the blue end (including
UV) was reflected more, sunsets would be blue.
I guess it's to do with diffraction of sunlight at the
horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

I have no desire to see more health and softy bull****.

It isnt H&S bull****.

That's what hivis is all about - ****ing safety.

Its also about who works for the railways
etc with the different color for them etc.

Same with the cops and paramedics and fireys
etc at car crashes etc, helps to be able to see
who is who quickly at the scene.

They tend to have "FIRE" written on them. In the case of railway
workers, there are only railway workers. And what's with the
different sirens for police, fire, ambulance, I doubt anyone knows
which is which, especially since they've all started using about
three different wails when one doesn't get the morons out of their
way.
A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the
real world.

A google search is very representative.

Google image results arent.

Same coding.

Nope.

Prove it. There's no reason it wouldn't be.

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, that's the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

They're all orange, every last one of them.

**** off Hucker. Your latest trolling has done very well, now just **** off
and die.

On Sat, 31 Aug 2019 20:56:41 +0100, Mr Pounder Esquire wrote:

Commander Kinsey wrote:
On Fri, 30 Aug 2019 20:19:57 +0100, Rod Speed
wrote:


"Commander Kinsey" wrote in message
news On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, that's the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

They're all orange, every last one of them.

**** off Hucker. Your latest trolling has done very well, now just **** off
and die.

Killfile too complicated for your little brain is it?

Commander Kinsey wrote:
On Sat, 31 Aug 2019 20:56:41 +0100, Mr Pounder Esquire
wrote:
Commander Kinsey wrote:
On Fri, 30 Aug 2019 20:19:57 +0100, Rod Speed
wrote:


"Commander Kinsey" wrote in message
news On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, that's the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

They're all orange, every last one of them.

**** off Hucker. Your latest trolling has done very well, now just
**** off and die.

Killfile too complicated for your little brain is it?

I don't use it. Just **** off.

"Commander Kinsey" wrote in message
news
On Fri, 30 Aug 2019 20:19:57 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news
On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian

wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about
the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a
bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does
it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent
in
the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but thats just different words for the same thing.

No,

Yep.

No.

Yep

Diffraction is light encountering an obstacle, like the edge of a
planet:
https://en.wikipedia.org/wiki/Diffraction

Thats just one form of diffraction.

Refraction is light encountering a different medium, like going from the
air into a lake: https://en.wikipedia.org/wiki/Refraction

Thats just one form of refraction.

They're different things entirely,

They are irrelevant to what we were discussing;.

go read Physics 101.

Go and **** yourself, again.

one is bending round corners, eg long wave radio goes further as it
can
go over mountains.

Thats not what is involved in there being more UV at sunset.

The other is bending when it goes into another medium, eg shining a
torch into water.

Thats not what is involved in there being more UV at sunset.

One bends high frequencies more, the other bends low frequencies more.

More UV at sunset isnt about bending.

You said above: "Thats why sunsets are red, the red light is reflected
off the crap in the air."

Because that is the reason for more UV at sunset.

That would make more red, duh.

Wrong, as always. The red is initially coming from the sun.
When some of that is reflected back towards the sun and well
away from the individual, thats less at the individual, stupid.

But er.... we see sunsets as red, which means the red end of the
spectrum
must be reaching our eyes more than the blue end.

Wrong, as always. We see sunsets as red because the sky
around the setting sun is red because of the red being
reflected off what is in the sky around the setting sun.

It reflects into our eyes,

And to a lot more than just our eyes, stupid.

that's why we see it, therefore the red is reaching us, and also any
hi-vis jackets.

Only a small subset of it is. Whereas much more of the UV which isnt
reflected so much, gets to our eyes and our hi vis jackets, stupid.

If the blue end (including UV) was reflected more, sunsets would be blue.

Duh.

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

I have no desire to see more health and softy bull****.

It isnt H&S bull****.

That's what hivis is all about - ****ing safety.

Its also about who works for the railways
etc with the different color for them etc.

Same with the cops and paramedics and fireys
etc at car crashes etc, helps to be able to see
who is who quickly at the scene.

They tend to have "FIRE" written on them.

Not on the sides they dont.

In the case of railway workers, there are only railway workers.

Wrong, as always.

And what's with the different sirens for police, fire, ambulance, I doubt
anyone knows which is which,

Those in them obviously do.

especially since they've all started using about three different wails
when one doesn't get the morons out of their way.

A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the real
world.

A google search is very representative.

Google image results arent.

Same coding.

Nope.

Prove it.

Do a search with a unique keyword and see
the different result with all and images, stupid.

There's no reason it wouldn't be.

Wrong, as always.

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, thats the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

They're all orange, every last one of them.

Wrong, as always. Just saw a pile in Aldi yesterday,
both yellow and orange.

On Sat, 31 Aug 2019 21:40:26 +0100, Mr Pounder Esquire wrote:

Commander Kinsey wrote:
On Sat, 31 Aug 2019 20:56:41 +0100, Mr Pounder Esquire
wrote:
Commander Kinsey wrote:
On Fri, 30 Aug 2019 20:19:57 +0100, Rod Speed
wrote:


"Commander Kinsey" wrote in message
news On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, that's the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

They're all orange, every last one of them.

**** off Hucker. Your latest trolling has done very well, now just
**** off and die.

Killfile too complicated for your little brain is it?

I don't use it. Just **** off.

No. You want me to go away, learn to use your antique Windows XP contraption correctly. I had a killfile back in 1995.

On 01/09/2019 07:56, Mr Pounder Esquire wrote:
Commander Kinsey wrote:
On Fri, 30 Aug 2019 20:19:57 +0100, Rod Speed
wrote:


"Commander Kinsey" wrote in message
news On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian

wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? What's so special
about the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a
bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does
it convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially
prevalent in the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. That's why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but that's just different words for the same thing.

No,

Yep.

No.

Yep

Diffraction is light encountering an obstacle, like the edge of a
planet: https://en.wikipedia.org/wiki/Diffraction

That's just one form of diffraction.

Refraction is light encountering a different medium, like going
from the air into a lake: https://en.wikipedia.org/wiki/Refraction

That's just one form or refraction.

They're different things entirely, go read Physics 101.

one is bending round corners, eg long wave radio goes further as
it can go over mountains.

That's not what is involved in there being more UV at sunset.

The other is bending when it goes into another medium, eg shining
a torch into water.

That's not what is involved in there being more UV at sunset.

One bends high frequencies more, the other bends low frequencies
more.

More UV at sunset isnt about bending.

You said above: "That's why sunsets are red, the red light is
reflected off the crap in the air."

Because that is the reason for more UV at sunset.

That would make more red, duh.

But er.... we see sunsets as red, which means the red end of the
spectrum must be reaching our eyes more than the blue end.

Wrong, as always. We see sunsets as red because the sky
around the setting sun is red because of the red being
reflected off what is in the sky around the setting sun.

It reflects into our eyes, that's why we see it, therefore the red is
reaching us, and also any hi-vis jackets. If the blue end (including
UV) was reflected more, sunsets would be blue.
I guess it's to do with diffraction of sunlight at the
horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

I have no desire to see more health and softy bull****.

It isnt H&S bull****.

That's what hivis is all about - ****ing safety.

Its also about who works for the railways
etc with the different color for them etc.

Same with the cops and paramedics and fireys
etc at car crashes etc, helps to be able to see
who is who quickly at the scene.

They tend to have "FIRE" written on them. In the case of railway
workers, there are only railway workers. And what's with the
different sirens for police, fire, ambulance, I doubt anyone knows
which is which, especially since they've all started using about
three different wails when one doesn't get the morons out of their
way.
A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the
real world.

A google search is very representative.

Google image results arent.

Same coding.

Nope.

Prove it. There's no reason it wouldn't be.

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, that's the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

They're all orange, every last one of them.

**** off Hucker. Your latest trolling has done very well, now just **** off
and die.


Yes he is a real stench, and revulsion is he not?

On 01/09/2019 08:40, Mr Pounder Esquire wrote:
Commander Kinsey wrote:
On Sat, 31 Aug 2019 20:56:41 +0100, Mr Pounder Esquire
wrote:
Commander Kinsey wrote:
On Fri, 30 Aug 2019 20:19:57 +0100, Rod Speed
wrote:


"Commander Kinsey" wrote in message
news On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, that's the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

They're all orange, every last one of them.

**** off Hucker. Your latest trolling has done very well, now just
**** off and die.

Killfile too complicated for your little brain is it?

I don't use it. Just **** off.


Sen Phucker is a real ratbag and a squeaking rat.

On 01/09/2019 10:03, The Peeler wrote:
...and nothing's left!

And true, Uncle Peter is a mistake of nature.

On Sat, 31 Aug 2019 21:52:48 +0100, Rod Speed wrote:



"Commander Kinsey" wrote in message
news
On Fri, 30 Aug 2019 20:19:57 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian

wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special about
the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a
bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket. Does
it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent
in
the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but thats just different words for the same thing.

No,

Yep.

No.

Yep

Diffraction is light encountering an obstacle, like the edge of a
planet:
https://en.wikipedia.org/wiki/Diffraction

Thats just one form of diffraction.

Refraction is light encountering a different medium, like going from the
air into a lake: https://en.wikipedia.org/wiki/Refraction

Thats just one form of refraction.

They're different things entirely,

They are irrelevant to what we were discussing;.

They explain clearly what different wavelengths of light do when they encounters objects.

go read Physics 101.

Go and **** yourself, again.

Too complicated for you is it?

one is bending round corners, eg long wave radio goes further as it
can
go over mountains.

Thats not what is involved in there being more UV at sunset.

The other is bending when it goes into another medium, eg shining a
torch into water.

Thats not what is involved in there being more UV at sunset.

One bends high frequencies more, the other bends low frequencies more.

More UV at sunset isnt about bending.

You said above: "Thats why sunsets are red, the red light is reflected
off the crap in the air."

Because that is the reason for more UV at sunset.

That would make more red, duh.

Wrong, as always. The red is initially coming from the sun.
When some of that is reflected back towards the sun and well
away from the individual, thats less at the individual, stupid.

That would make the sunset blue!

But er.... we see sunsets as red, which means the red end of the
spectrum
must be reaching our eyes more than the blue end.

Wrong, as always. We see sunsets as red because the sky
around the setting sun is red because of the red being
reflected off what is in the sky around the setting sun.

It reflects into our eyes,

And to a lot more than just our eyes, stupid.

The point is the same colour we see in the sunset (red) because it hit our eyes, is what will also hit the hi-vis jackets. So not UV.

that's why we see it, therefore the red is reaching us, and also any
hi-vis jackets.

Only a small subset of it is. Whereas much more of the UV which isnt
reflected so much, gets to our eyes and our hi vis jackets, stupid.

Clearly as sunsets show more of the red end of the visible spectrum, and less of the blue end, then it's bull**** that more UV gets through.

If the blue end (including UV) was reflected more, sunsets would be blue.

Duh.

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

I have no desire to see more health and softy bull****.

It isnt H&S bull****.

That's what hivis is all about - ****ing safety.

Its also about who works for the railways
etc with the different color for them etc.

Same with the cops and paramedics and fireys
etc at car crashes etc, helps to be able to see
who is who quickly at the scene.

They tend to have "FIRE" written on them.

Not on the sides they dont.

Maybe you should suggest that to the health and softy types.

In the case of railway workers, there are only railway workers.

Wrong, as always.

Who else is working on the rails?

And what's with the different sirens for police, fire, ambulance, I doubt
anyone knows which is which,

Those in them obviously do.

They don't need to know, it's the public that needs to get out of the way that needs to know. Fire - someone could be about to die, ambulance, somebody could be about to die, police, who gives a ****?

especially since they've all started using about three different wails
when one doesn't get the morons out of their way.

A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the real
world.

A google search is very representative.

Google image results arent.

Same coding.

Nope.

Prove it.

Do a search with a unique keyword and see
the different result with all and images, stupid.

For example?

[repetition flushed where it belongs]

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, thats the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

They're all orange, every last one of them.

Wrong, as always. Just saw a pile in Aldi yesterday,
both yellow and orange.

Doesn't mean anyone buys them both. Aldi sells all sorts of pointless ****e. I never use the middle aisle at all. Since it's different stuff every week, how can I go there and buy something when I don't know what it'll be? I go to shops that I know sell the thing I require.

"Commander Kinsey" wrote in message
news
On Sat, 31 Aug 2019 21:52:48 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news
On Fri, 30 Aug 2019 20:19:57 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news On Thu, 29 Aug 2019 01:31:58 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 21:09:53 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Wed, 28 Aug 2019 05:29:07 +0100, Rod Speed

wrote:



"Commander Kinsey" wrote in message
news On Tue, 27 Aug 2019 22:38:57 +0100, Max Demian

wrote:

On 27/08/2019 17:25, Commander Kinsey wrote:
On Tue, 27 Aug 2019 17:13:18 +0100, Colonel Edmund J. Burke
wrote:

On 8/27/2019 9:03 AM, Commander Kinsey wrote:
Why is hi-vis clothing easier to see? Whats so special
about
the
colour?

Color, you ignorant limey.

So why isn't red, yellow, etc as easy to see? If you wear a
bright
red
tshirt, you aren't as visible as wearing a hi-vis jacket.
Does
it
convert all the wavelengths into one or something?

It's fluorescent. It converts ultraviolet (especially prevalent
in
the
dusk) into visible light.

I never realised this - there's more UV at dusk?

Yep, because the sunlight is going thru a lot more air
and dust etc in the air and UV gets thru that better
than the longer wavelength light. Thats why sunsets
are red, the red light is reflected off the crap in the air.

Isn't it to do with diffraction and refraction?

Yes but thats just different words for the same thing.

No,

Yep.

No.

Yep

Diffraction is light encountering an obstacle, like the edge of a
planet:
https://en.wikipedia.org/wiki/Diffraction

Thats just one form of diffraction.

Refraction is light encountering a different medium, like going from
the
air into a lake: https://en.wikipedia.org/wiki/Refraction

Thats just one form of refraction.

They're different things entirely,

They are irrelevant to what we were discussing;.

They explain clearly what different wavelengths of light do when they
encounters objects.

The sunset UV effect isnt due to objects.

go read Physics 101.

Go and **** yourself, again.

Too complicated for you is it?

Nothing complicated about telling you to go and **** yourself, again.

one is bending round corners, eg long wave radio goes further as it
can go over mountains.

Thats not what is involved in there being more UV at sunset.

The other is bending when it goes into another medium, eg shining a
torch into water.

Thats not what is involved in there being more UV at sunset.

One bends high frequencies more, the other bends low frequencies
more.

More UV at sunset isnt about bending.

You said above: "Thats why sunsets are red, the red light is
reflected
off the crap in the air."

Because that is the reason for more UV at sunset.

That would make more red, duh.

Wrong, as always. The red is initially coming from the sun.
When some of that is reflected back towards the sun and well
away from the individual, thats less at the individual, stupid.

That would make the sunset blue!

Nope, its red because what is scattered off the stuff in the longer
path at sunset makes THAT look red, the stuff its scattered off.

But er.... we see sunsets as red, which means the red end of the
spectrum
must be reaching our eyes more than the blue end.

Wrong, as always. We see sunsets as red because the sky
around the setting sun is red because of the red being
reflected off what is in the sky around the setting sun.

It reflects into our eyes,

And to a lot more than just our eyes, stupid.

The point is the same colour we see in the sunset (red) because it hit our
eyes,

The sunset is red because red is scattered off the
stuff in the longer air path and THAT is red.

is what will also hit the hi-vis jackets.

But much less of that than with the UV.

So not UV.

Wrong, as always.

that's why we see it, therefore the red is reaching us, and also any
hi-vis jackets.

Only a small subset of it is. Whereas much more of the UV which isnt
reflected so much, gets to our eyes and our hi vis jackets, stupid.

Clearly as sunsets show more of the red end of the visible spectrum, and
less of the blue end, then it's bull**** that more UV gets through.

When quite a bit of the red is scattered by stuff in the long path
and makes THAT look red. and when much less of the UV is scattered
and ends up at the observer, thats how more UV gets thru, stupid.

If the blue end (including UV) was reflected more, sunsets would be
blue.

Duh.

I guess it's to do with diffraction of sunlight at the horizon?

More the much longer amount of air in the path between
the sun and you.

Presumably mainly available in certain colours.

Why are they always yellow or green?

They arent normally green and plenty are orange/reddish.

Almost every one I see nowadays is yellow.

Then you need to get out more.

I have no desire to see more health and softy bull****.

It isnt H&S bull****.

That's what hivis is all about - ****ing safety.

Its also about who works for the railways
etc with the different color for them etc.

Same with the cops and paramedics and fireys
etc at car crashes etc, helps to be able to see
who is who quickly at the scene.

They tend to have "FIRE" written on them.

Not on the sides they dont.

Maybe you should suggest that to the health and softy types.

No point, there isnt anywhere you can put large letters on the sides,
stupid.

In the case of railway workers, there are only railway workers.

Wrong, as always.

Who else is working on the rails?

Didnt say anything about working, stupid.

Even a terminal ****wit such as yourself must have noticed
plenty wear their hi vis all day etc and plenty of those can
be where the trains are, stupid.

And what's with the different sirens for police, fire, ambulance, I
doubt anyone knows which is which,

Those in them obviously do.

They don't need to know,

Corse they do when they are going to an accident scene
whose location is poorly described and they need to
go to where other services are already etc.

it's the public that needs to get out of the way that needs to know.

They dont need to know which it is, just get out of the road
of any vehicle with a siren of any type blaring, stupid.

Fire - someone could be about to die, ambulance, somebody could be about
to die, police, who gives a ****?

Those other services that may need to know if its another
one of theirs or one of a different emergency service, stupid.

especially since they've all started using about three different wails
when one doesn't get the morons out of their way.

A google image search shows 75% yellow and 25% orange,

Its nothing like a representative sample of whats seen in the real
world.

A google search is very representative.

Google image results arent.

Same coding.

Nope.

Prove it.

Do a search with a unique keyword and see
the different result with all and images, stupid.

For example?

although I can't remember the last time I saw an orange.

Then you need to get out more. It varys by industry too. some
like the railways have their own colors for various reasons.

Ah, I do remember orange at a level crossing.

Yeah, thats the most obvious example.

Why do railways need different colours?

So they can easily work out who does what job etc.

They're all orange, every last one of them.

Wrong, as always. Just saw a pile in Aldi yesterday,
both yellow and orange.

Doesn't mean anyone buys them both.

They wouldnt keep selling the stuff that no on buys, ****wit.

reams of your even sillier **** flushed where it belongs