Satellites keep their cool

时间:2019-03-06 06:10:01166网络整理admin

A smart coating that changes colour to reflect heat if it’s too hot and absorb it if it’s too cold can keep satellites at exactly the right temperature. Dramatic swings in temperature can wreak havoc with sensitive satellite sensors, so craft are usually protected by heavy reflective slats that can be opened or closed. David Eastham of Isis Innovation, the University of Oxford’s technology transfer company, says the coating can do the same job as the slats,