Iron weighs more after it rusts.
68
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Aluminum used to be more valuable than gold!
84
Billions of neutrinos pass unnoticed through your body every second.
6
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Out of all the senses, smell is most closely linked to memory.
146
Sound at the right vibration can bore holes through a solid object.
134