"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Stay sharp and learn something new every day or stock up on knowledge for the next 105 days with these ...

Water is made up of H₂O molecules that are polar, meaning they have a slightly positive side and a slightly negative side. This polarity creates strong cohesion, causing water molecules to attract one ...

Find out how much you know with these random facts and trivia questions on movies, music, history, science, geography and so ...

Talk about a bizarre feature of the human body: If you happened to swallow a razor blade, your stomach acid would dissolve it ...

Did you know? Sound from another planet, the wind on Mars, has been recorded and made audible with the help of headphones and ...

Mothers are so familiar that sometimes their mysteries are overlooked. As I dove into the research for my new book Mom Genes: Inside the New Science of Our Ancient Maternal Instinct, I began to see ...