When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
A cesium atom in an atomic clock beats over nine billion times a second.
43
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Liquid TIDE laundry detergent glows under a blacklight.
96