Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Aluminum used to be more valuable than gold!
84
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Most dust particles in your house are made from dead skin!
67
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Sound travels about 4 times faster in water than in air.
408