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
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Most dust particles in your house are made from dead skin!
67
Iron weighs more after it rusts.
68
The average temperature at 40,000 feet above sea level is -60 F.
56
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118