The average temperature at 40,000 feet above sea level is -60 F.
56
The storage capacity of human brain exceeds 4 Terrabytes.
140
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Pure water (H2O) does not conduct electricity on its own.
46
The sun is 330,330 times larger than the earth.
75
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Sound travels fifteen times faster through steel than through air.
134