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New energy source for public rail systems

By tovarichpeter   Follow   Sat, 24 Nov 2012, 8:53am   235 views   2 comments
In South San Francisco CA 94080   Watch (0)   Share   Quote   Permalink   Like   Dislike  

http://www.bbc.com/future/story/20121122-spiraling-wheels-boost-subways

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1. zzyzzx Follow Befriend (9) 416 threads 4,138 comments Baltimore, MD

   1   10:07am Mon 26 Nov 2012   Share   Quote   Permalink   Like   Dislike   That's a really good idea. It's not really a new energy source, it's really just another form of regenerative braking. Would lower electric rail electric bills and reduce maintenance costs on braking system.

2. Automan Empire Follow Befriend 3 threads 91 comments Los Angeles, CA

   2   11:33am Mon 26 Nov 2012   Share   Quote   Permalink   Like   Dislike   Such a good idea I am surprised they aren't already installed. What we REALLY need are Shipstones. (cookie for reference)