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Environment & Energy

MADem

(135,425 posts)

1. Would ya get sick travelling in 'em, I wonder?

Reply to eppur_se_muova (Original post)

Mon Jun 4, 2012, 12:06 AM

Jun 2012

That's pretty doggone fast!

Fascinating concept!!!

Mixed with magnets, I guess they will go fast:

But combing vacuum train with another technology overcomes the speed barrier. A few weeks ago, I wrote about maglev (magnetic levitation) trains, vehicles that float on a bed of magnets to cut down friction. In standard set-ups these have achieved speeds of up to 581km/h (361mph). But in a vacuum, some believe they could reach speeds of more than 4,000km/h.

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Vacuum trains: a high-speed pipe dream? (BBC Future) [View all] eppur_se_muova Jun 2012 OP

Would ya get sick travelling in 'em, I wonder? MADem Jun 2012 #1

This idea is great, until something goes wrong... johnd83 Jun 2012 #2

It would be a prime target for terrorists. n/t OnlinePoker Jun 2012 #4

Yeah, all they'd have to do is exhale mindwalker_i Jun 2012 #5

As Seen on Futurama ThoughtCriminal Jun 2012 #3

Not much different from the vacuum tubes they use at the bank madokie Jun 2012 #6

This is something I've thought about a lot caraher Jun 2012 #7

I was thinking about this last night XemaSab Jun 2012 #8

That's not so hard FBaggins Jun 2012 #9

The Panama locks carry a massive percent of the world's shipping XemaSab Jun 2012 #10

A transatlantic tunnel would carry a high volume as well. FBaggins Jun 2012 #11

"could theoretically hit speeds of up to 4,000 km/h (2,500 mph)" Heywood J Jun 2012 #12

these accelerations could be quite modest caraher Jun 2012 #13

Except you can't seal the cabin airtight. Heywood J Jun 2012 #16

These are not dealbreakers caraher Jun 2012 #18

So this evacuated tube under the Atlantic seabed pscot Jun 2012 #14

Somehow the thought of that sounds worse than an airplane XemaSab Jun 2012 #15

If the vacuum tube ruptured you mind find yourself exiting Iceland pscot Jun 2012 #17