A glowing red light isn't always a good sign, but in the case of your Apple Watch, it's just a case of a sensor that's ...

A dialysis sensor built in an apartment. A coating that keeps liquids from sticking — even at near-boiling temperatures. From detecting infections at the molecular level to engineering surfaces that ...

In the United States, every automatic garage door must have a reversal system that stops the door if something is in its path ...