Aluminum used to be more valuable than gold!
84
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
German chemists made a replica of a trophy the size of one molecule.
68
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21