Out of all the senses, smell is most closely linked to memory.
146
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
4.5 pounds of sunlight strike the Earth each day.
27
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
No matter how cold it gets, gasoline will not freeze.
107
Most dust particles in your house come from dead skin.
48
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Nearly 50% of the world's scientists are assigned to military projects.
71