Iron weighs more after it rusts.
16
Billions of neutrinos pass unnoticed through your body every second.
6
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Your brain is 80% water.
525
The sun is 330,330 times larger than the earth.
75
Aluminum used to be more valuable than gold!
84
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5