0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The average temperature at 40,000 feet above sea level is -60 F.
56
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Indoor pollution is 10 times more toxic than outdoor pollution.
62