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	<title>Comments on: What happens to air in your lungs at altitude?</title>
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	<link>http://blog.sciencegeekgirl.com/2009/10/10/what-happens-to-air-in-your-lungs-at-altitude/</link>
	<description>explorations and inspirations... in how we learn science</description>
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		<title>By: Rhett</title>
		<link>http://blog.sciencegeekgirl.com/2009/10/10/what-happens-to-air-in-your-lungs-at-altitude/comment-page-1/#comment-2526</link>
		<dc:creator>Rhett</dc:creator>
		<pubDate>Sun, 11 Oct 2009 01:38:26 +0000</pubDate>
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		<description>Actually, if you took a breath from a scuba tank just 5 feet underwater (a full deep breath) and then ascended you could cause a problem.

Of course, on the other hand, if you are 100 feet deep and take a full breath from a scuba tank, you can ascend the whole way while exhaling (because the air in your lungs is expanding).</description>
		<content:encoded><![CDATA[<p>Actually, if you took a breath from a scuba tank just 5 feet underwater (a full deep breath) and then ascended you could cause a problem.</p>
<p>Of course, on the other hand, if you are 100 feet deep and take a full breath from a scuba tank, you can ascend the whole way while exhaling (because the air in your lungs is expanding).</p>
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