One third of the electricity produced on earth is used to power electric light bulbs!
75
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
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
Nearly 50% of the world's scientists are assigned to military projects.
71
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61