Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
The bark of an older redwood tree is fireproof.
65
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Sound at the right vibration can bore holes through a solid object.
134
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65