One 75-watt bulb gives more light than three 25-watt bulbs.
57
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
Your brain is 80% water.
525
No matter how cold it gets, gasoline will not freeze.
107
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
German chemists made a replica of a trophy the size of one molecule.
68
Most dust particles in your house come from dead skin.
48