Mark Halper

  • The danged dongle, such as the ones pictured here from Signify and from its competitor pureLiFi, will probably continue to hold back LiFi adoption until gadget makers finally embed LiFi circuitry in tablets, laptops and phones, the way they do today with WiFi. [Photo from pureLiFi]International

    The World’s Largest Lighting Company Is Making Big Promises for a WiFi Alternative—But 5G Awaits

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  • Multi-nuclide removal facility, or advanced liquid processing system (ALPS), used for treating contaminated water accumulated, is seen during a media tour of Tokyo Electric Power Co's (TEPCO) Fukushima Dai-Ichi nuclear power plant in Okuma, Fukushima, Japan, on Wednesday, Oct. 2, 2019. TEPCO is considering a plan to dump roughly 1 million cubic meters of treated radioactive water, enough to fill 400 Olympic-size swimming pools, from the wrecked Fukushima Dai-Ichi nuclear power plant into the Pacific Ocean, part of its $200 billion effort to clean up the worst atomic accident since Chernobyl. Photographer: Hitoshi Katanoda/Polaris Images/Bloomberg via Getty ImagesInternational

    Green, Nuclear, and Crowdfunded: One Startup’s Unconventional Route to Building a Novel Reactor

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  • Alvin Weinberg in 1957

    The U.S. is helping China build a novel, superior nuclear reactor

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  • Fuel rods at a nuclear power plant in Dukovany, Czech Republic. A wave of startup companies aims to improve nuclear power with new technologies and materials.

    Startup nuclear energy companies augur safer, cheaper atomic power

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  • The Three Mile Island Nuclear Plant near Middletown, Pennsylvania. The facility first came online in 1974.

    Government watchdog: U.S. slipping in nuclear energy innovation

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