Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Sound travels about 4 times faster in water than in air.
408
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
A ball of glass will bounce higher than a ball made of rubber.
73
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116