Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
One third of the electricity produced on earth is used to power electric light bulbs!
75
4.5 pounds of sunlight strike the Earth each day.
27
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The average home creates more pollution than does the average car.
33
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Scientists are now able to grow 'beating' heart tissue in a lab!
162