Balsa wood is classified as a hard wood!
41
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Most dust particles in your house come from dead skin.
48
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Iron weighs more after it rusts.
16
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108