Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Research indicates that plants grow healthier when they are stroked.
173
The sun is 330,330 times larger than the earth.
75
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Aluminum used to be more valuable than gold!
84
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9