One barrel of petroleum holds 42 gallons.
20
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
4.5 pounds of sunlight strike the Earth each day.
27
Most dust particles in your house are made from dead skin!
67
Nearly 50% of the world's scientists are assigned to military projects.
71
Most dust particles in your house come from dead skin.
48
The sun is 330,330 times larger than the earth.
75