Five years ago, billionaire Elon Musk open-sourced his plan for a supersonic train-like thing. Today it's still a work in progress. Eric Mack has been a CNET contributor since 2011. Eric and his ...
Eric Mack has been a CNET contributor since 2011. Eric and his family live 100% energy and water independent on his off-grid compound in the New Mexico desert. Eric uses his passion for writing about ...
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