Looking for an alarm system to make you feel more secure? We've tested all the top professional and DIY home security systems to help you decide which is right to protect your family and property.

PHILADELPHIA (KYW Newsradio) — SEPTA said installation crews are not going to make Friday's deadline to put thermal detection units on all of its Silverliner IV rail cars. After completing fire ...

Dan Buettner's iconic National Geographic cover story transformed our idea of what makes for a long, healthy life. It's now published online for the first time. OKINAWA, JAPANSquatting effortlessly on ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...