A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The only letter not appearing on the Periodic Table is the letter "J".
180
One barrel of petroleum holds 42 gallons.
20
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9