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Electrical basics made easy. (49-min, video) (2026-10)
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Tariff-free shopping: 10 things to know before buying refurbished electronics. (2025-05)
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What is a Black Start of the power grid? (17-min. video) (2024-06)
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A true story about microwaves....and certainly interesting as well. (12-min. video) (2022-11)
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10 things to know before you buy refurbished electronics. (2021-12)
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Electron microscope shows a stop motion animation of a phonograph needle in an LP groove. (10-min. video) (2018-03)
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20 bad tech gifts to avoid giving during the 2017 holiday season. (2017-12)
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Can airport x-ray scanners damage your phone or laptop? (2016-09)
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Frequently asked questions about EMF shielding around the house and in the car. (2015-11)
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