Have you ever placed a thermometer under your tongue and wondered how that tiny device knows if you have a fever? Or checked the weather and thought about how scientists measure temperature so ...

Ordinarily, you won't encounter a radiation thermometer until somebody puts one in your ear at the doctor's office or you point one at your forehead when you're feeling feverish. But more ...

Researchers have invented a portable, remarkably stable thermometer capable of measuring temperatures to a precision of within a few thousandths of a degree Celsius. Ordinarily, you won't encounter a ...