One barrel of petroleum holds 42 gallons.
20
Out of all the senses, smell is most closely linked to memory.
146
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Hot water can freeze faster than cold water.
181
Liquid TIDE laundry detergent glows under a blacklight.
96
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Each day, up to 150 species of life become extinct.
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