Detailed Mock-up information; Principles of atmospheric pressure.
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| Format: | Government Document eBook |
| Language: | English |
| Published: |
[Washington] :
[s.n.],
1945.
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| Subjects: | |
| Online Access: | Electronic resource (PDF) |
| Item Description: | Experiment to show that air has mass and exerts pressure. Air pressure at sea level can lift a 30in. column of mercury. Increase in altitude and decrease in air density, causes decrease in atmospheric pressure and cause mercury to go down. Includes photos and diagrams. |
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| Physical Description: | 1 online resource (13 pages .), digital, PDF file |