Most plastics are made from chemicals that come from petrol, gas or coal. They are made by heating these chemicals at a high temperature. When the plastic is soft it can be poured into a mould. Once ...
Valentine's Day is the perfect time to show kids a little extra love and appreciation, and you can do that without buying a single piece of candy.
In October 1984 I arrived at Oxford University, trailing a large steamer trunk containing a couple of changes of clothing and about five dozen textbooks. I had a freshly minted bachelor’s degree in ...