Nearly 50% of the world's scientists are assigned to military projects.
71
The storage capacity of human brain exceeds 4 Terrabytes.
140
No matter how cold it gets, gasoline will not freeze.
107
Iron weighs more after it rusts.
68
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
A cubic yard of air weighs about 2 pounds at sea level.
31
One 75-watt bulb gives more light than three 25-watt bulbs.
57