Can you wash your clothes with saliva (口水)? Can rollercoasters help cure (治愈) diseases? Do flies have a special smell? These questions maybe a bit odd (奇怪的). But the researchers who answered them were all winners of the Ig Nobel Prizes. The Ig Nobels were first awarded in 1991. The prizes are given for 10 unusual achievements each year. They were created in order to honor achievements that first make people laugh, and then make them think, the Washington Post reported.
Here are a few awards for some funny science discoveries.
*Chemistry： Saliva cleaner(清油剂)
How do you usually clean dirty surfaces? Maybe you can use your saliva, according to Portuguese (葡 萄牙的) researcher Paula Romao and her colleagues. Human saliva contains a-amylase (a-淀粉酶) which is believed to have cleaning power. Scientists plan to take a-amylase from bread or microorganisms (微生 物) and invent an environmentally-friendly cleaner.
*Medicine:Rollercoasters help pass kidney stone (肾结石)
Kidney stone are masse (块状物) of chemicals and salt found in urine (尿液). Sometime, jumping can help small stone move forward out of the bladder (膀胱) so that it can pass out of the body. Scientists from Michigan State University found that riding a rollercoaster can do the same thing. The powerful forces of a rollercoaster can move the stone around so that it pass out of the body more easily.
*Biology： Scent of a fly
How do you know if a fly has been in your food? A team of Swedish scientists found that we can smell flies. They tested this idea using wine (酒) glasses. They found that female flies release a chemical that has a special scent. The scent stayed inside the gasses even after the fly had left. After smelling the glasses, wine testers said that the wine inside tasted "somewhat unpleasant" .
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