It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Out of all the senses, smell is most closely linked to memory.
146
Iron weighs more after it rusts.
68
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
The bark of an older redwood tree is fireproof.
65
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
For every gallon of sea water, you get more than a quarter pound of salt.
45
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88