Sound travels about 4 times faster in water than in air.
408
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Iron weighs more after it rusts.
68
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
For every gallon of sea water, you get more than a quarter pound of salt.
45
The smell of freshly cut grass is actually a plant distress call.
31