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 today! If it ain’t broke, don’t fix it. A Sling Psychrometer is a simple ...

It's been quite humid in the Brazos Valley over the last week, but how might you measure that humidity from home? We have a fun activity that you can do with everyday items. Now bear with me here, but ...

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 ...

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 ...

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 is said to have been ...