Reading an old-fashioned mercury thermometer sometimes requires some squinting. But that’s nothing compared with what’s needed to read the newest temperature-measuring device. Yihua Gao and Yoshio ...

The world’s smallest thermometer consisting of a single carbon nanotube filled with liquid gallium has been created by researchers in Japan. The instrument is so sensitive that it can measure the ...

Last year Yihau Gao and Yoshio Bando at the National Institute for Materials Science in Tsukuba found that the height of a column of liquid gallium in a nanotube – a sheet of graphite rolled into a ...