Woman Swears She Saw Her Husband Cheating On Her Until She Realized One Insane Detail

The More You Know

• Agatha Christie said she came up with many of her book plots while sitting in her bathtub while eating apples.
• The stars and flashes of light you see when you rub your eyes are called "phosphenes."
• You can hear a blue whale's heartbeat from more than 2 miles away.
• The world's most toxic mineral is cinnabar.