Often, the only liquid level indicator you need is your eyes, such as when looking at your cold beverage on a summer’s day. Other times, though, it’s useful to have some kind of indicator light that ...

Apple Watch hydration tracking app WaterMinder now arrived with a new 5.1 version. The latest update introduced some nice features for iOS users including a redesigned look and a water level indicator ...

Monitoring and maintaining a safe operating water level on any steam boiler plant is an important part of the control area operator’s job function. There are specific minimum requirements for water ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...