When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Sound at the right vibration can bore holes through a solid object.
134
The earth is approx. 6,588,000,000,000,000,000 tons.
175
One third of the electricity produced on earth is used to power electric light bulbs!
75
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The left ear is more responsive to words of love and emotion whispered into it than the right.
40