Sound travels about 4 times faster in water than in air.
408
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 weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
The only letter not appearing on the Periodic Table is the letter "J".
180