Discover how to build a simple solar cell at home using everyday materials! This step-by-step tutorial demonstrates how to ...

Jon covers artificial intelligence. He previously led CNET's home energy and utilities category, with a focus on energy-saving advice, thermostats, and heating and cooling. Jon has more than a decade ...

Get the latest federal technology news delivered to your inbox. The federal government spends a lot of money on scientific research and projects, but even so, it can’t do everything without a little ...