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Author Topic: The next steps in energy and transportation should be...???  (Read 3058 times)
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Last Login:April 11, 2016, 07:41:55 pm
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Religion: Kemetic
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« Reply #4: May 29, 2007, 03:24:15 am »

Screw that!  Make that sucker fifteen meters wide and eight meters tall! Cheesy  We aren't stuck at making everything two horses' asses wide anymore.  Make the inter/transcontinental trains into moving malls - parking included, so you don't have to rent a car at your destination.  Include suites, restaurants, libraries, sleeping tubes for the economy-class - the possibilities are just about endless.

I'd go in the other direction ... instead of subway trains, have little pods like ski lift gondolas. Hop in, press the button for the station you want to go, and whee .....

re maglev: actively using energy to lift up a vehicle strikes me as inefficient. The Linear Induction Motor (LIM) on a wheeled vehicle seems like the way to go; the acceleration either direction would still be magnetic, so no need to worry about traction, icy rails etc, but the train would be held up by plain ol' wheels. (low-friction bearings would help there ...) Imagine having to move a vehicle that, for whatever reason, had suffered a power loss. I'd want one that rolled at least a little. Granted, laying a smooth track for high-speed operation would be diffficult, but this applies to maglev as well (optimal LIM operation needs precise separation, a matter of cm or mm, between the magnets and reaction rail).

I have also heard, but do not have references, that an exposed maglev train has difficulties with high winds: they essentially pick the train up and mess with the rather delicate spacing of the magnetic components.

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