A magnetic flow meter relies on Faraday's Law of Induction to measure the flow of a fluid. Magnets outside the pipe create a magnetic field. Electrodes are located perpendicular to the magnets.

In a world of increasing wildfires and invisible irritants, we consulted experts to explain how to measure and correct air quality.

The UV Meter is a Flipper Zero application designed to measure ultraviolet (UV) radiation using the AS7331 spectral sensor, ...

Here's how the 6-meter walk test works: Measure out a 6-meter stretch of straight, flat ground. At Bonnes's clinic, they use a hallway and mark the beginning and the end of the path with orange cones.

A gadget called a peak flow meter lets you do that. You hold it in your hand and blow into it as hard as you can to get a measure of the greatest airflow rate you can produce. About 600 liters per ...