4.5 pounds of sunlight strike the Earth each day.
27
One ragweed plant can release as many as one billion grains of pollen!
51
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Aluminum used to be more valuable than gold!
84
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
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
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17