Why does a paper cut hurt so much more than a cut with a razor blade?
Did you know that there could be more bacteria living in your mouth than there are people on earth?
Because of the tremendous pressure, over three times that of the normal atmosphere, the lake's water remains liquid at about twenty seven degrees.
When you open a container of yogurt, you'll often see liquid collected on top. What is it, and where does it come from?
Wouldn't it be great if we could trade genes with other species?
A jar of honey that's been opened and resealed can stay on the shelf for years. Archaeologists have even found ancient jars with unspoiled honey inside.
Do antiperspirants stop all kinds of sweat? How do they work?
During World War 1 soldiers' maggot-infested wounds almost never became infected. What was going on?
Scientists believe they have a high-tech use for one of nature's natural anti-bacterial agents, ultraviolet light. They can use it to replace pasteurization.
As this watery sweat rinses your skin, it cools the body by evaporation--and even performs a community service by rinsing away potentially stinky bacteria!