Protecting Your Mattress and Yourself So you are buying or have just bought a new mattress. The sales person at the store, customer service rep on the phone, or the website selling the mattress recommends buying a mattress protector, too. "Why," you ask, "do I need a mattress protector?" Good question. Why or why not? We don't like the idea. For one thing, it's one more thing to buy. For another thing, we may remember the uncomfortable plastic sheets our parents put on mattresses when we...
Polyethylene Penicillin was discovered by accident when Alexander Fleming noticed bacteria dying in the presence of certain molds. Vulcanization of rubber by sulfur was also accidentally discovered by Charles Goodyear. In 1898 in Germany, Hans von Pechmann accidentally synthesized polyethylene. It took longer for polyethylene to become widely used than for rubber and penicillin, but now it is one of the most widely used food packaging materials. And it is also being used in...
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