"whisky-dave" wrote in message
...

On Thursday, 4 May 2017 12:29:41 UTC+1, James Wilkinson Sword wrote:
On Sat, 29 Apr 2017 20:52:57 +0100, Rod Speed
wrote:



If you have several cats, a transparent one would prevent them from
both
going through at once.

I'm not convinced.

Would video proof help convince you ?

https://youtu.be/gHNeKgu1k34?t=76

Notice how the cat jumps back when it sees my cat through the transparant
cat flap, notice how my cat waiting until the other leaves before he goes
through the cat flap.
As yuo might guess the video cature was using software which detected
movement which triggered the camera this also set off an audio warning of
'intruder alert' a sound byte captured from a star trek episode.
If my cat was in the same room as the computer when this triggered he used
to run down the hallway and down the back stairs to the cat flap.
Once when ST was on Red alert came up he looked around then went back to
sleep as an intruder alert and red alert must have sounded differnt.


Why can't the cats see the flap moving
and realise that another cat is coming thru the other way ?

because it could be the wind or any other reason, could be me teaching them
how to use the flap which is how I got my cat to use it.
Or it could be another cat so best to stop it coming through


Same reason as it happens with people. It doesn't move until you push
it. If person/cat A pushes the flap/door while person/cat B is too close
to the other side, they get a busted nose.


Otherwise this could happen: https://youtu.be/1U1jSGib-NA?t=1m49s

Unlikely with cats.

They can see through doors?

They have good hearing so don't realy as much as seeing as humans do.



I can only find two models. One lasts about 2 weeks, the other lasts
about a year.

Mine would last as long as the house does.

I can't be bothered building one.

Why bother.


That would be an enormous catflap. No wonder you get burglars.

Is that how cat burglers got their name ?


What revolts me is my cat eats her kittens ****.

Certain fish eat the **** of thier offspring and it actually make the
adults live longer.
They have also found that injecting adult mice with the blood of young mice
rejuvenated the older mice.


Its got nothing to do with intelligence, they evolved
like that. Just like cats did with kitten ****.

Eating a waste product is not a good idea.

It is for some animals where their digestive system doesn't remove
all that the food they eat provides it goes through a second time.



Nope, they clearly survive doing that fine.

I doubt they enjoy it.

What does that have to do with it, do you enjoy brushing your teeth.
Animals don;t need to do this.


They do only live for 15-20 years.

That's due to something else entirely.

If you know what it is, name it.

Size and DNA are part of it.
That;s why some insects live for a day and some whales can live to over
500 years old.

Nice wiring! Could do with a grommet in the hole through the door though.