Kevin Brubeck Unhammer
unhammer at fsfe.org
Mon Jan 21 09:10:11 CET 2013
Саша Петровић <salepetronije at gmail.com> writes:
> „The air that makes up the atmosphere exerts a pressure on the surface
> below it...“ ? „below it“- It is illogical. The air pressure in all
> directions IN the atmosphere. _______________________________________________
I don't think it's illogical, it just focuses on the important details.
If I'm standing at 0 meters above sea level, I will have about 100 km of
air on my head:
Since air also weighs something, carrying around this amount of air
exerts a pressure on my head (1,000 kg, says Wikipedia). If I climb
above sea level, I'll have less pressure on my head. I believe that's
the pressure that's meant in the ../panel-plugin/weather-config.c:1417
Yes, pressure is exerted in the other directions too, but that's
cancelled out (disregarding wind for the moment …) and is less important
when the discussion is about altitude.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?
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