Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Sound at the right vibration can bore holes through a solid object.
134
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Sound travels fifteen times faster through steel than through air.
134