Discover how to build a simple DIY projector using everyday materials like cardboard and a small flashlight or laser pointer.

Discover how to create a working hair dryer using cardboard and basic electronic parts in this hands-on tutorial. Follow step ...

Peter is a writer and editor for the CNET How-To team. He has been covering technology, software, finance, sports and video games since working for @Home Network and Excite in the 1990s. Peter managed ...