Cold water weighs more than hot water.
93
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
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
One cubic foot of gold weighs more than 1,200 pounds!
78
Sound at the right vibration can bore holes through a solid object.
134
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61