Londoners in particular are used to the packed, slow moving trains - but in a few years time this might be a thing of the past. Organisations like Paypal are developing the idea of having trains which hurtle through tunnels at around 760 mph - quicker than a commercial airliner! The idea being that, you'd travel through a vacuumed tunnel, propelled by compressed air and motors, you might see this in practice ferrying passengers between San Francisco and LA.
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