The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Aluminum used to be more valuable than gold!
84
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Billions of neutrinos pass unnoticed through your body every second.
6
Your brain is 80% water.
525
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
One third of the electricity produced on earth is used to power electric light bulbs!
75
Brass doorknobs automatically disinfect themselves in about 8 hours.
18