LOUISVILLE, Ky. — News of COVID-19 vaccines and deployments have taken over the headlines in recent weeks, and various numbers have been thrown at us: the efficacy, how many doses are needed, and ...

As the video above explains, before Celsius or Fahrenheit became standard, getting precise tools to measure temperature was a bigger problem than the scale that temperature was measured on.

Sun exposure makes it feel hotter than the shaded air temperature because your body absorbs infrared radiation from the sun.