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
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
A ball of glass will bounce higher than a ball made of rubber.
73
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Iron weighs more after it rusts.
68
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88