Neanderthal man had a brain capacity 100cc larger than modern man's.
50
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
A ball of glass will bounce higher than a ball made of rubber.
73
One barrel of petroleum holds 42 gallons.
20
The only letter not appearing on the Periodic Table is the letter "J".
180
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18