In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
In zero gravity, a candle's flame is round and blue.
16
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
One cubic foot of gold weighs more than 1,200 pounds!
78