Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Cold water weighs more than hot water.
93
Your brain is 80% water.
525
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
One barrel of petroleum holds 42 gallons.
20
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
One ragweed plant can release as many as one billion grains of pollen!
51