Brass doorknobs automatically disinfect themselves in about 8 hours.
18
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Scientists are now able to grow 'beating' heart tissue in a lab!
162
For every gallon of sea water, you get more than a quarter pound of salt.
45
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
One cubic foot of gold weighs more than 1,200 pounds!
78
In zero gravity, a candle's flame is round and blue.
16
The sun is 330,330 times larger than the earth.
75