The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Billions of neutrinos pass unnoticed through your body every second.
6
The sun is 330,330 times larger than the earth.
75
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The left ear is more responsive to words of love and emotion whispered into it than the right.
40