It is one of life’s everyday frustrations, putting on a jumper only to get too hot and have to take it off again. But scientists may now have an answer—a self-cooling jumper. Researchers have created a material which heats up when someone gets too cold. But it also detects when they are warm enough and releases heat to maintain the perfect temperature.
The clothing is made out of regular wool already used in sportswear but coated with a super-thin layer of metal. Its creators claim it is far better than breathable sportswear which is already available, altering the body’s temperature by 35 per cent, while existing clothing only manages five per cent. The material can be washed like a regular jumper and is expected to be only around £4 ($5) more expensive.
Professor Min Ouyang, who helped to create the material from the University of Maryland, said, “This material was created with the idea of making sure that someone can remain comfortable. They do not have to take off clothing, then put on clothing, to try to reach a comfortable temperature. If someone is sitting in an office and they feel hot, they don’t need to turn on the air conditioning or change their clothing.”
Researchers took wool which is already used in sportswear as their starting point. This was coated in carbon nanotubes which are as thin as a human hair. The metal detects if someone is getting slightly warm, as their skin becomes damp with sweat. This causes the fabric to shrink and pull closer together, creating an electric charge that sends heat out of the body. But if someone starts feeling a bit chilly again, the material will expand, with the metal pulling in warmth from the air outside.
本时文内容由奇速英语国际教育研究院原创编写，未经书面授权，禁止复制和任何商业用途，版权所有，侵权必究！（作者投稿及时文阅读定制请联系微信：400-1000-028）
15542615578 Mar 1, 2019 11:26:32 AM
VB！
13980503458
13980503458
admin@qisuen.cn
