Sound travels about 4 times faster in water than in air.
408
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Your brain is 80% water.
525
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Each day, up to 150 species of life become extinct.
-23
One ragweed plant can release as many as one billion grains of pollen!
51
Liquid TIDE laundry detergent glows under a blacklight.
96
In zero gravity, a candle's flame is round and blue.
16