0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Iron weighs more after it rusts.
16
Sound at the right vibration can bore holes through a solid object.
134
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Most dust particles in your house are made from dead skin!
67
According to studies, men change their minds two to three times more often than women.
72