Which instrument is specifically designed and used for measuring high temperatures, especially of distant stars or molten metals, without direct physical contact?

💡 Solution & Explanation

A pyrometer is a specialized remote-sensing instrument used to measure very high temperatures, such as those of celestial bodies or molten industrial metals, without physical contact. It operates by detecting the thermal radiation emitted by the target object, distinguishing it from liquid-in-glass thermometers or manometers. This capability is essential in metallurgical industries and astrophysics for studying environments too hostile for direct contact sensors.