The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Nearly 50% of the world's scientists are assigned to military projects.
71
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
The only letter not appearing on the Periodic Table is the letter "J".
180
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
Brass doorknobs automatically disinfect themselves in about 8 hours.
18