Balsa wood is classified as a hard wood!
41
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
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Aluminum used to be more valuable than gold!
84
A cesium atom in an atomic clock beats over nine billion times a second.
43
Billions of neutrinos pass unnoticed through your body every second.
6
One third of the electricity produced on earth is used to power electric light bulbs!
75
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51