One barrel of petroleum holds 42 gallons.
20
Aluminum used to be more valuable than gold!
84
Diamonds can be shattered with a hammer.
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According to studies, men change their minds two to three times more often than women.
72
4.5 pounds of sunlight strike the Earth each day.
27
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
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39