In zero gravity, a candle's flame is round and blue.
16
Cold water weighs more than hot water.
93
No matter how cold it gets, gasoline will not freeze.
107
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
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39