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 ...

Chemistry is hard enough to understand. But this already-convoluted field of science can be even worse because of some stuff that defies logic. Here are five examples. There are two chemicals that are ...

(via Be Smart) Life’s been around on Earth for at least 3.7 billion years. But for most of that time, it was incredibly boring — just simple little cells squirming around in water. It only got ...