One cubic foot of gold weighs more than 1,200 pounds!
78
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
In zero gravity, a candle's flame is round and blue.
16
Your brain is 80% water.
525
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16