Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Iron weighs more after it rusts.
68
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
One ragweed plant can release as many as one billion grains of pollen!
51
Out of all the senses, smell is most closely linked to memory.
146
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Pure water (H2O) does not conduct electricity on its own.
46