Sound moves faster in water…? We may need fish to get us to Mars…? There was a robot in the 15th century…? Here are fun facts about science… WATCH OUR OTHER VIDEOS: ►25 Shocking Scientific Predictions ...

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 ...

Ten weird but true human body facts that will surprise you with their science, oddities, and fascinating processes you never ...