Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2010 November 30 Explanation: Is that a spaceship or a cloud? Although it may seem like an alien mothership, it's actually a impressive thunderstorm cloud called a supercell. Such colossal storm syst
Details Written by Dr. Steven Novella Published: 28 January 2012 Here's a safety tip from your friendly skeptical doctor - don't wrap yourself in mud and then stay in a sweat lodge for hours. You may or may not remember from your grade school health class that the body needs to regulate its own temperature to keep it within a fairly narrow healthy range. There are several mechanisms for regulating
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