Sound at the right vibration can bore holes through a solid object.
134
Iron weighs more after it rusts.
16
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
4.5 pounds of sunlight strike the Earth each day.
27
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Diamonds can be shattered with a hammer.
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