• PM_Logo

    by admin on 2022-03-22 07:12:57

    Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. How we test gear.

    The tiny, magnetic balls are finally back on the market.

    If you've always wanted to legally purchase a set of Buckyballs, those small sphe

  • Build Your Own Speaker - Scientific American

    by admin on 2022-03-22 07:12:52

    A sound science activity from Science Buddies

    Key Concepts Physics Sound Magnetism Electricity

    Introduction Do you like to listen to music? Have you ever wondered how a TV, computer or phone turns music into sound that your ears can hear? In this project you will bui

  • Consider the Mighty Bass Speaker - Premier Guitar

    by admin on 2022-03-22 07:12:51

    Photo 1: Despite the ornamental look of this golden Celestion speaker from 1924, its main components are essentially the same as today's.

    A rumination on the history of bass speakers and how they compare to their guitar-amplifying kin.

    Musicians rarely see the huge effect a speaker

  • Hydrogen fuels might have just got a huge leg-up | Top Gear

    by admin on 2022-03-22 07:12:32

    New tech promises green hydrogen that’s cheaper and more energy efficient to produce

    Australian boffins have apparently figured out the best way to create hydrogen fuel, producing it at 95 per cent efficiency – more than a 25 per cent improvement than any competing method. Best of al