New energy source for public rail systems

By tovarichpeter   follow   Sat, 24 Nov 2012, 12:53am PST   ↑ Like   ↓ Dislike   442 views   2 comments   Watch (0)   Share   Quote  

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

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zzyzzx   befriend (10)   ignore (6)   Mon, 26 Nov 2012, 2:07am PST   Like   Dislike     Share   Quote   Comment 1

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.

Automan Empire   befriend (0)   ignore (0)   Mon, 26 Nov 2012, 3:33am PST   Like   Dislike     Share   Quote   Comment 2

Such a good idea I am surprised they aren't already installed.

What we REALLY need are Shipstones. (cookie for reference)

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