Sound travels about 4 times faster in water than in air.
408
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Each day, up to 150 species of life become extinct.
-23
If the chemical sodium is dropped into water it will immediately and violently explode.
67
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
Aluminum used to be more valuable than gold!
84
Scientists are now able to grow 'beating' heart tissue in a lab!
162
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310