One cubic foot of gold weighs more than 1,200 pounds!
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Cold water weighs more than hot water.
93
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Pure water (H2O) does not conduct electricity on its own.
46
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65