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
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Aluminum used to be more valuable than gold!
84
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65