Sound travels fifteen times faster through steel than through air.
134
German chemists made a replica of a trophy the size of one molecule.
68
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
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
Sound at the right vibration can bore holes through a solid object.
134
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75