When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
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
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One third of the electricity produced on earth is used to power electric light bulbs!
75
One ragweed plant can release as many as one billion grains of pollen!
51
Out of all the senses, smell is most closely linked to memory.
146