Meteorology Charles A. Giannetta
Meteorologist - Professor
"A I R"
1...There are several tons of air pressure on our bodies. The reason
we are not crushed is because the air pressure is equal on all
sides.
2...Sound travels through air. Without air there would be no sound.
3...After a heavy rain, air is forced from the ground. Earthworms
come to the surface to breath.
4...Air above 1 acre weighs about 40,000 tons.
5...A cubic foot of air at a temperature of 32 degrees F., weighs
about 1 ounce.
6...If air is cooled to about -315 Degs. F., it changes to a liquid,
called (Liquid Air). It looks like water and pours like water.
7...A person can only live about 10 minutes without air.
8...The mixture of gases in the air has had about 3.5 billion years
in which to evolve.
9...Water vapor content of the atmosphere varies depending on the
temperature and relative humidity.
10..With 100% humidity, the water vapor content of air varies from
190 ppm at -40 degs.F., (-40 Degs. C.), to 42,000 ppm at
30 Degs. C., (86 Degs. F.).
11..The air pressure at the surface is: 760 mm or 29.92 inches...
1013.2 mb...14.7 lbs. per sq. in.
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© 1998 - 2014 Charles A. Giannetta