0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Iron weighs more after it rusts.
68
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Sound at the right vibration can bore holes through a solid object.
134
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Nearly 50% of the world's scientists are assigned to military projects.
71
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41