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
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Pure water (H2O) does not conduct electricity on its own.
46
Most dust particles in your house come from dead skin.
48
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18