The earth is approx. 6,588,000,000,000,000,000 tons.
175
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
One barrel of petroleum holds 42 gallons.
20
Diamonds can be shattered with a hammer.
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