Sometimes we need a non-contact liquid level sensor. There are several ways to build that, but the easiest is to try an optical liquid level sensor. You may already have an idea in mind since you are ...

Level Zero Health’s co-founders Ula Rustamova and Irene Jia are swinging for the fences. They are attempting to invent a never-achieved technology that could help millions of people. If they succeed — ...

We are currently in the process of putting in a backyard pool. This is an in-ground gunite pool. I inquired about an auto-fill system from the pool builder but he talked me out of it. He explained ...