Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Hot water can freeze faster than cold water.
181
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
The bark of an older redwood tree is fireproof.
65
Each day, up to 150 species of life become extinct.
-23