Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Sound travels about 4 times faster in water than in air.
408
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Sound at the right vibration can bore holes through a solid object.
134
Nylon is made from coal and petroleum.
42
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21