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, ...

Let’s first state the obvious. Most techs are intimidated by Psychrometric charts and Mollier diagrams, we just are. While there are some pretty complicated formulas that back up these diagrams, using ...

Add Yahoo as a preferred source to see more of our stories on Google. Higher dew points can mean misery. Parts of the United States have gotten an early taste of summer weather, as temperatures and ...