Hot water can freeze faster than cold water.
181
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Sound travels about 4 times faster in water than in air.
408
Most dust particles in your house are made from dead skin!
67
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304