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Is the US finally getting ‘all aboard’ with electric trains?
(www.theverge.com)
This is a most excellent place for technology news and articles.
That would mean that instead of an engine, you're lugging around a battery pack, which is just as heavy while giving you a fraction of the range of an engine. Not to forget that battery cells have only a finite lifespan.
Meanwhile, OHLE gives you infinite range and room for major weight savings. Plus you can keep running the same power system for decades.