In zero gravity, a candle's flame is round and blue.
16
4.5 pounds of sunlight strike the Earth each day.
27
Nearly 50% of the world's scientists are assigned to military projects.
71
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The storage capacity of human brain exceeds 4 Terrabytes.
140
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Aluminum used to be more valuable than gold!
84