Lightning Striking Again
What's hotter than the surface of the sun, moves with incredible speed, lasts a few seconds and goes out with a bang? If you said lightning, you're right. Lightning strikes cause thousands of forest fires every year and occasionally cause the death of people.…
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Biology
Bacteria Sometimes Catch A Virus
Bacteria sometimes catch a virus. Bacteriophages--'bacteria-eaters'-- or phages, are viruses that use bacteria…
Astronomy
Stopping In Thin Air
Imagine you're going very fast -- much faster than a race car. In fact, imagine you're going 100 or 200 times…
Geology
Glaciers: Rivers of Ice
Glaciers are massive sheets of ice that occur on every continent of the world except Australia. These giant…
Engineering
Searing Heat, Little Package
Engineers have created a miniature hotplate that can reach temperatures above 1100C (2012F), self-contained…