Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Your brain is 80% water.
525