Scientists are now able to grow 'beating' heart tissue in a lab!
162
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Scientists aren't sure what color dinosaurs were.
312
Hot water can freeze faster than cold water.
181
The sun is 330,330 times larger than the earth.
75
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118