The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Cold water weighs more than hot water.
93
Out of all the senses, smell is most closely linked to memory.
146
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39