Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Scientists aren't sure what color dinosaurs were.
312
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Most dust particles in your house are made from dead skin!
67
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Billions of neutrinos pass unnoticed through your body every second.
6