The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
One barrel of petroleum holds 42 gallons.
20
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The bark of an older redwood tree is fireproof.
65
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Sound travels about 4 times faster in water than in air.
408
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