In this video, I demonstrate two simple electrical methods for metal etching that serve as alternatives to traditional engraving, suitable for various metal restoration and modification projects.

Editor's Note: January 29, 2026: We've checked to make sure that our recommendations are still available and competitively priced. We’re in the process of testing a new round of metal detectors to ...

Feb. 6, 2026 A new study reveals that chemicals used to replace ozone-damaging CFCs are now driving a surge in a persistent “forever chemical” worldwide. The pollutant, called trifluoroacetic acid, is ...

Fresh Air from WHYY, the Peabody Award-winning weekday magazine of contemporary arts and issues, is one of public radio's most popular programs. Hosted by Terry Gross and Tonya Mosley, the show ...

Join Larry Mantle weekdays for lively and in-depth discussions of Los Angeles and Southern California news, politics, science, entertainment, the arts and more. More AirTalk at www.kpcc.org. February ...