The smell of freshly cut grass is actually a plant distress call.
31
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
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
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Iron weighs more after it rusts.
68
According to studies, men change their minds two to three times more often than women.
72