美国科学60秒 SSS 2012-09-12
时间：2018-12-24 作者：英语课 分类：Scientific American(九)月
英语课
This is scientific American sixty seconds science. I'm Christopher Intagliata. Got a minute?
When Pyrex cookware first came out, it was advertised as icebox to oven. Because it was made of borosilicate glass which could weather large temperature changes without undergoing thermal 2 shock and shattering. But today American Pyrex and Anchor Hocking dishes are made of soda 3 lime silicate 1 glass, which is prone 4 to shatter. So says a report in the Bulletin of the American Ceramic 5 Society. Researchers calculated that a rapid temperature change of just a hundred degrees Fahrenheit 6 could fracture the new glass, compared to three hundred and thirty degrees for the old stuff. They say that means it's possible to break a glass measuring cup with boiling water. Or to explode a cool casserole dish by sliding it into a hot oven. Manufacturers say that they temper the new glass to make it stronger. And researchers did find some evidence of that. But they believed the heat treatment was inadequate 7. Because in the lab tests, the cookware exploded into large glass shards 8 rather than tiny pieces as tempered auto 9 glass does. As the saying goes, if you can't stand the heat, stay out of the kitchen. If this research is accurate, the heat is on this cookware.
Thanks for the minute for scientific American sixty seconds science. I'm Christopher Intagliata.
1 silicate
n.硅酸盐
- There are large amounts of aluminum silicate in the area.这个地区有大量的硅酸铝。
- Silicate minerals are characteristically refractory and difficult to break down.硅酸盐矿物的特点是耐熔和难以分离。
2 thermal
adj.热的，由热造成的；保暖的
- They will build another thermal power station.他们要另外建一座热能发电站。
- Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。
3 soda
n.苏打水；汽水
- She doesn't enjoy drinking chocolate soda.她不喜欢喝巧克力汽水。
- I will freshen your drink with more soda and ice cubes.我给你的饮料重加一些苏打水和冰块。
4 prone
adj.(to)易于…的，很可能…的；俯卧的
- Some people are prone to jump to hasty conclusions.有些人往往作出轻率的结论。
- He is prone to lose his temper when people disagree with him.人家一不同意他的意见,他就发脾气。
5 ceramic
n.制陶业，陶器，陶瓷工艺
- The order for ceramic tiles has been booked in.瓷砖的订单已登记下来了。
- Some ceramic works of art are shown in this exhibition.这次展览会上展出了一些陶瓷艺术品。
6 Fahrenheit
n./adj.华氏温度；华氏温度计(的)
- He was asked for the boiling point of water in Fahrenheit.他被问到水的沸点是华氏多少度。
- The thermometer reads 80 degrees Fahrenheit.寒暑表指出华氏80度。
7 inadequate
adj.(for,to)不充足的，不适当的
- The supply is inadequate to meet the demand.供不应求。
- She was inadequate to the demands that were made on her.她还无力满足对她提出的各项要求。