Brass doorknobs automatically disinfect themselves in about 8 hours.
18
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
German chemists made a replica of a trophy the size of one molecule.
68
One barrel of petroleum holds 42 gallons.
20
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Liquid TIDE laundry detergent glows under a blacklight.
96
Indoor pollution is 10 times more toxic than outdoor pollution.
62