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Barometers and average pressure
Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre.
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Barometers and average pressure
On 06/02/2020 14:00, Commander Kinsey wrote:
Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. In space the average is 0 mbar |
Barometers and average pressure
On 06/02/2020 14:11, Andy Bennet wrote:
On 06/02/2020 14:00, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. In space the average is 0 mbar The same as the pressure between your ears. |
Barometers and average pressure
In article op.0fkjut2bwdg98l@glass,
Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches -- from KT24 in Surrey, England "I'd rather die of exhaustion than die of boredom" Thomas Carlyle |
Barometers and average pressure
On Thu, 06 Feb 2020 14:11:13 -0000, Andy Bennet wrote:
On 06/02/2020 14:00, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. In space the average is 0 mbar Barometers tend to be used on the ground. So how come the bar was taken to be slightly different to mean sea level pressure? Was it measured inaccurately when they invented it? |
Barometers and average pressure
On 06/02/2020 14:00, Commander Kinsey wrote:
Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. A bar is not defined as 1 atmosphere (average) pressure. Just happens to be close (within 1% of it). 1 bar is equivalent to 100 kPa where 1 Pa (Pascal) is a defined SI unit pressure of 1 Newton per m2. |
Barometers and average pressure
On Thu, 06 Feb 2020 14:27:40 -0000, charles wrote:
In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Phwoar! ;-) All mine have both measurements. It would appear it should be corrected for altitude, but that would mean a rotatable dial. I've got an app on my phone that does it, it'll be interesting to see if it changes the centre position with altitude, 1010 mbar is about right for here. |
Barometers and average pressure
On Thu, 06 Feb 2020 14:45:52 -0000, Andy Bennet wrote:
On 06/02/2020 14:00, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. A bar is not defined as 1 atmosphere (average) pressure. Just happens to be close (within 1% of it). 1 bar is equivalent to 100 kPa where 1 Pa (Pascal) is a defined SI unit pressure of 1 Newton per m2. So pot luck or something inaccurate in the past? The history of it sounds interesting. |
Barometers and average pressure
On Thu, 06 Feb 2020 14:45:52 -0000, Andy Bennet wrote:
On 06/02/2020 14:00, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. A bar is not defined as 1 atmosphere (average) pressure. Just happens to be close (within 1% of it). 1 bar is equivalent to 100 kPa where 1 Pa (Pascal) is a defined SI unit pressure of 1 Newton per m2. Religious folk would say this was a 1% error made by god :-) So he isn't infallible! |
Troll-feeding Senile ASSHOLE Alert!
On Thu, 6 Feb 2020 14:11:13 +0000, Andy Bennet, another troll-feeding senile
idiot, blathered: In space the average is 0 mbar On average he's a clinically insane trolling ****** and you are a senile troll-feeding idiot! |
Troll-feeding Senile ASSHOLE Alert!
On Thu, 06 Feb 2020 14:27:40 +0000 (GMT), charles, another mentally
challenged, troll-feeding senile asshole, blathered: On mine it's 29.5 inches And yet another senile idiot came hopping along who couldn't resist taking the clinically insane attention whore's latest idiotic bait! tsk |
Troll-feeding Senile ASSHOLE Alert!
On Thu, 6 Feb 2020 14:45:52 +0000, Andy Bennet, the demented, troll-feeding,
senile asshole, blathered again: A bar is not defined as 1 atmosphere (average) pressure. Just happens to be close (within 1% of it). 1 bar is equivalent to 100 kPa where 1 Pa (Pascal) is a defined SI unit pressure of 1 Newton per m2. YOU are equivalent to a troll-feeding senile asshole, senile twit! tsk |
Barometers and average pressure
On Thu, 06 Feb 2020 14:49:36 -0000, Commander Kinsey wrote:
It would appear it should be corrected for altitude, but that would mean a rotatable dial. Or an adjustment screw on the back for an aneroid barometer or a moveable linear scale on a mercury one. About 50 mb of adjustment needed here. -- Cheers Dave. |
Troll-feeding Senile ASSHOLE Alert!
On Thu, 06 Feb 2020 16:21:22 +0000 (GMT), Dave Liquorice, another absolutely
brain dead, troll-feeding, senile asshole, blathered: Or an adjustment screw You two idiots need a few screws adjusted inside your stupid heads! |
Barometers and average pressure
On Thu, 06 Feb 2020 14:37:11 -0000, "Commander Kinsey"
wrote: On Thu, 06 Feb 2020 14:11:13 -0000, Andy Bennet wrote: On 06/02/2020 14:00, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. In space the average is 0 mbar Barometers tend to be used on the ground. So how come the bar was taken to be slightly different to mean sea level pressure? Was it measured inaccurately when they invented it? Maybe seal levels are dropping ;-) I am sure Greta would say the air is heavier because of the CO2. |
Barometers and average pressure
On Thu, 6 Feb 2020 14:45:52 +0000, Andy Bennet wrote:
On 06/02/2020 14:00, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. A bar is not defined as 1 atmosphere (average) pressure. Just happens to be close (within 1% of it). 1 bar is equivalent to 100 kPa where 1 Pa (Pascal) is a defined SI unit pressure of 1 Newton per m2. We use mm/hg |
Barometers and average pressure
On Thu, 06 Feb 2020 17:10:43 -0000, wrote:
On Thu, 06 Feb 2020 14:37:11 -0000, "Commander Kinsey" wrote: On Thu, 06 Feb 2020 14:11:13 -0000, Andy Bennet wrote: On 06/02/2020 14:00, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. In space the average is 0 mbar Barometers tend to be used on the ground. So how come the bar was taken to be slightly different to mean sea level pressure? Was it measured inaccurately when they invented it? Maybe seal levels are dropping ;-) Too many clubs. I am sure Greta would say the air is heavier because of the CO2. Oh those poor plants having an easier time breathing now we've unlocked the CO2 that used to be in the air anyway! |
Barometers and average pressure
On Thu, 06 Feb 2020 17:15:19 -0000, wrote:
On Thu, 6 Feb 2020 14:45:52 +0000, Andy Bennet wrote: On 06/02/2020 14:00, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. A bar is not defined as 1 atmosphere (average) pressure. Just happens to be close (within 1% of it). 1 bar is equivalent to 100 kPa where 1 Pa (Pascal) is a defined SI unit pressure of 1 Newton per m2. We use mm/hg Why do you deliberately make the maths more difficult? Use stuff with multiples of 10. |
Barometers and average pressure
On Thu, 06 Feb 2020 16:21:22 -0000, Dave Liquorice wrote:
On Thu, 06 Feb 2020 14:49:36 -0000, Commander Kinsey wrote: It would appear it should be corrected for altitude, but that would mean a rotatable dial. Or an adjustment screw on the back for an aneroid barometer or a moveable linear scale on a mercury one. About 50 mb of adjustment needed here. Yes it could be easily done. Although.... should it be done? If you're at a higher altitude, you have lower pressure, but you also have more cloud. Clouds tend to hang around mountains. |
Barometers and average pressure
On Thu, 06 Feb 2020 17:39:45 -0000, "Commander Kinsey"
wrote: On Thu, 06 Feb 2020 17:15:19 -0000, wrote: On Thu, 6 Feb 2020 14:45:52 +0000, Andy Bennet wrote: On 06/02/2020 14:00, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. A bar is not defined as 1 atmosphere (average) pressure. Just happens to be close (within 1% of it). 1 bar is equivalent to 100 kPa where 1 Pa (Pascal) is a defined SI unit pressure of 1 Newton per m2. We use mm/hg Why do you deliberately make the maths more difficult? Use stuff with multiples of 10. That is metric. What did you have in mind? |
Barometers and average pressure
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Barometers and average pressure
On Thu, 06 Feb 2020 17:45:53 -0000, wrote:
On Thu, 06 Feb 2020 17:39:45 -0000, "Commander Kinsey" wrote: On Thu, 06 Feb 2020 17:15:19 -0000, wrote: On Thu, 6 Feb 2020 14:45:52 +0000, Andy Bennet wrote: On 06/02/2020 14:00, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. A bar is not defined as 1 atmosphere (average) pressure. Just happens to be close (within 1% of it). 1 bar is equivalent to 100 kPa where 1 Pa (Pascal) is a defined SI unit pressure of 1 Newton per m2. We use mm/hg Why do you deliberately make the maths more difficult? Use stuff with multiples of 10. That is metric. What did you have in mind? Metric. |
Barometers and average pressure
On Thu, 06 Feb 2020 18:04:28 -0000, Ralph Mowery wrote:
In article , says... So how come the bar was taken to be slightly different to mean sea level pressure? Was it measured inaccurately when they invented it? Maybe seal levels are dropping ;-) I am sure Greta would say the air is heavier because of the CO2. Many measurments have changed over the years. The standard meter or foot or some length was changed not long ago and it was enough that the US east to west coast changed by almost 20 feet. Wouldn't you get that much by sea erosion anyway? |
Troll-feeding Senile YANKIETARD Alert!
On Thu, 06 Feb 2020 12:10:43 -0500, , the disgusting,
troll-feeding senile Yankietard, blathered again: Maybe seal levels are dropping ;-) I am sure Greta would say the air is heavier because of the CO2. I am sure the Scottish ****** will have another wank after your post, you idiotic troll-feeding senile Yankietard! |
Troll-feeding Senile YANKIETARD Alert!
|
Barometers and average pressure
On Thursday, February 6, 2020 at 9:49:40 AM UTC-5, Commander Kinsey wrote:
On Thu, 06 Feb 2020 14:27:40 -0000, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Phwoar! ;-) All mine have both measurements. It would appear it should be corrected for altitude, but that would mean a rotatable dial. Dial? My barometer is a column of mercury. Cindy Hamilton |
Barometers and average pressure
On Thu, 06 Feb 2020 20:31:23 -0000, Cindy Hamilton wrote:
On Thursday, February 6, 2020 at 9:49:40 AM UTC-5, Commander Kinsey wrote: On Thu, 06 Feb 2020 14:27:40 -0000, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Phwoar! ;-) All mine have both measurements. It would appear it should be corrected for altitude, but that would mean a rotatable dial. Dial? My barometer is a column of mercury. My god how old is that? |
Barometers and average pressure
On 2/6/20 3:31 PM, Cindy Hamilton wrote:
On Thursday, February 6, 2020 at 9:49:40 AM UTC-5, Commander Kinsey wrote: On Thu, 06 Feb 2020 14:27:40 -0000, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Phwoar! ;-) All mine have both measurements. It would appear it should be corrected for altitude, but that would mean a rotatable dial. Dial? My barometer is a column of mercury. Cindy Hamilton I guess that rules out Bluetooth then. |
Barometers and average pressure
On 06/02/2020 14:27, charles wrote:
In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Snap. SteveW |
Barometers and average pressure
On Thu, 06 Feb 2020 21:07:40 -0000, Steve Walker wrote:
On 06/02/2020 14:27, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Snap. Are you one of those Merkins? |
Barometers and average pressure
In article op.0fk362g1wdg98l@glass,
Commander Kinsey wrote: On Thu, 06 Feb 2020 21:07:40 -0000, Steve Walker wrote: On 06/02/2020 14:27, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Snap. Are you one of those Merkins? y barometer has the name of an old established Edinburgh company on the dial. -- from KT24 in Surrey, England "I'd rather die of exhaustion than die of boredom" Thomas Carlyle |
Barometers and average pressure
Commander Kinsey wrote:
On Thu, 06 Feb 2020 21:07:40 -0000, Steve Walker wrote: On 06/02/2020 14:27, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Snap. Are you one of those Merkins? **** off Hucker. |
Barometers and average pressure
On 06/02/2020 21:34, charles wrote:
In article op.0fk362g1wdg98l@glass, Commander Kinsey wrote: On Thu, 06 Feb 2020 21:07:40 -0000, Steve Walker wrote: On 06/02/2020 14:27, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Snap. Are you one of those Merkins? y barometer has the name of an old established Edinburgh company on the dial. And ours has the name of a Brighton company on it - but not on the dial, as it hasn't got one, being a traditional mercury barometer. SteveW |
Barometers and average pressure
On Thu, 06 Feb 2020 21:35:45 -0000, Mr Pounder Esquire wrote:
Commander Kinsey wrote: On Thu, 06 Feb 2020 21:07:40 -0000, Steve Walker wrote: On 06/02/2020 14:27, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Snap. Are you one of those Merkins? **** off Hucker. **** off Pound Her. |
Barometers and average pressure
On Thu, 06 Feb 2020 22:06:58 -0000, Steve Walker wrote:
On 06/02/2020 21:34, charles wrote: In article op.0fk362g1wdg98l@glass, Commander Kinsey wrote: On Thu, 06 Feb 2020 21:07:40 -0000, Steve Walker wrote: On 06/02/2020 14:27, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Snap. Are you one of those Merkins? y barometer has the name of an old established Edinburgh company on the dial. And ours has the name of a Brighton company on it - but not on the dial, as it hasn't got one, being a traditional mercury barometer. Bloody hell how old are you? I'm 44 and there's one that was made before I was born with a dial. |
Barometers and average pressure
On Thu, 06 Feb 2020 21:34:21 -0000, charles wrote:
In article op.0fk362g1wdg98l@glass, Commander Kinsey wrote: On Thu, 06 Feb 2020 21:07:40 -0000, Steve Walker wrote: On 06/02/2020 14:27, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Snap. Are you one of those Merkins? y barometer has the name of an old established Edinburgh company on the dial. Yes a long long long time ago, the UK used the imperial ****. We moved on. America didn't. |
Troll-feeding Senile ASSHOLE Alert!
On Thu, 6 Feb 2020 12:31:23 -0800 (PST), Cindy Hamilton, the braindamaged,
notorious, troll-feeding, senile asshole, blathered again: Dial? My barometer is a column of mercury. Cindy Hamilton Is it, you demented troll-feeding senile Yankie asshole? BG |
Troll-feeding Senile ASSHOLE Alert!
On Thu, 06 Feb 2020 21:34:21 +0000 (GMT), charles, another mentally
challenged, troll-feeding senile asshole, blathered: y barometer has the name of an old established Edinburgh company on the dial. Are you sure, you demented senile sucker of troll cock? |
Barometers and average pressure
On Thursday, February 6, 2020 at 3:37:29 PM UTC-5, Commander Kinsey wrote:
On Thu, 06 Feb 2020 20:31:23 -0000, Cindy Hamilton wrote: On Thursday, February 6, 2020 at 9:49:40 AM UTC-5, Commander Kinsey wrote: On Thu, 06 Feb 2020 14:27:40 -0000, charles wrote: In article op.0fkjut2bwdg98l@glass, Commander Kinsey wrote: Why do barometers have different centre readings? I thought 1000 mbar was average, as that's what barometers always used to have as the central reading ("change"), but Wikipedia says it's 1013. I've seen some newer ones with 1010 as the centre. On mine it's 29.5 inches Phwoar! ;-) All mine have both measurements. It would appear it should be corrected for altitude, but that would mean a rotatable dial. Dial? My barometer is a column of mercury. My god how old is that? I'm not sure. My husband salvaged it from work, and the building it was in dates back to the 1950s. Cindy Hamilton |
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