Dew point can be calculated using the air temperature and a relative humidity value, which is measured using something called a sling psychrometer. A psychrometer is a metal rod, around 6 inches long, ...

Regarding your recent reply on measuring dew point temperatures, please consider forwarding information about sling psychrometers (available on the Web). Indeed we shall — and a tip of our WGN weather ...

An e-mail from Herman asks about an instrument using thermometers to determine humidity and wants to know what it is. It's called a sling psychrometer and consists of two thermometers fastened onto a ...

An e-mail from a Moline reader recalls an instrument using thermometers to determine humidity and wants to know what it is. It's called a sling psychrometer and consists of two thermometers which are ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This instrument consists of two ...

Add Yahoo as a preferred source to see more of our stories on Google. A what? A sling psychrometer is a difficult word for a very simple tool. It dates back to the 1700s and is actually still used ...