Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
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
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
The sun is 330,330 times larger than the earth.
75
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Research indicates that plants grow healthier when they are stroked.
173