Talk about a bizarre feature of the human body: If you happened to swallow a razor blade, your stomach acid would dissolve it. Acids are ranked on a scale from zero to 14—the lower the pH level, the ...
The coldest temperature ever recorded on Earth was minus 128.56 degrees Fahrenheit (minus 89.2 degrees Celsius), registered on July 21, 1983, at Antarctica's Vostok station. The Dry Valleys of ...
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