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3 votes

How come the pressure/shock waves of an explosive volcanic eruption almost always fail to cause any damage?

Volcanoes are not bombs, they don't explode through a high explosive reactions, it more about dissolved gases being released from pressure. More like shaking up a coke can and popping it, spraying ...
John's user avatar
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1 vote

Effect of changes in the air's nitrogen-oxygen-carbondioxide proportions

As a follow on to Riccardo's answer, dry-air oxygen levels are fairly stable at 20.95% outdoors. The info below is based on OSHA here and here: Below 19.5% - air is oxygen deficient and one should ...
unstar782's user avatar
1 vote

Effect of changes in the air's nitrogen-oxygen-carbondioxide proportions

The (dry) air in Earth's atmosphere is about 78.08 percent nitrogen, 20.95 percent oxygen, and 0.93 percent Ar. Roughly, 78% N2, 21% O2 and 1% Ar. CO2 is a mere 0.04%. If the oxygen content were 1.1-1....
Riccardo's user avatar

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