Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Liquid TIDE laundry detergent glows under a blacklight.
96
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13