Acts2:38Apologetics
Active Member
Another claim that is demonstrably false. Have you ever climbed a high mountain? The higher the altitude, the thinner the air becomes, and at some point you have to carry your own oxygen. You may have even experienced your ears popping and having to swallow to equalise the pressure in your inner ear when taking an elevator up in a tall building or driving up in the mountains. Your own experience tells you that the earth is not a sealed pressure vessel.
The gas molecules in the air have mass. Very little mass compared to most of what we engage with day to day, but enough for gravity to keep it from simply drifting out into space. The higher you go, the less dense the atmosphere. There isn't a sudden cut off point where there is atmosphere on one side and vacuum on the other, in fact the earth's atmosphere extends out past the moon, it is simply too thin to be measurable.
But we haven't been outside lower earth orbit. So how do we know the earths atmosphere extends out past the moon? The moon is supposed to be 225,000 miles away, (at its closest) and according to NASA, lower earth orbit is 1200 miles. And NASA is on record numerous times telling us they are hopeful to leave earths orbit soon.... So how can we know how far earths atmosphere is. How do we know the earth is 225,000 miles away if we haven't left lower earth orbit?
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