Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Sound travels fifteen times faster through steel than through air.
134
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
According to studies, men change their minds two to three times more often than women.
72