Comcast Internet Service has Flex 4K streaming and hotspot services. Find the right speed of service for your home by answering a few simple questions to have Comcast match you with the right plan.

Xfinity Mobile offers phone and data plans that start at $12 a month. The company also has mix-and-match services. Xfinity Mobile has unlimited talk and text on up to five lines with no phone line or ...

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 ...

Nanosensors are chemical or mechanical sensors that can be used to detect the presence of chemical species and nanoparticles, or monitor physical parameters such as temperature, on the nanoscale. They ...