7657RE: [carfree_cities] RE: ETT and Canterbury Tales
- Sep 16, 2004
> -----Original Message-----Marine crossings will be expensive, and most of the tech issues have been
> From: Jason Meggs [mailto:jmeggs@...]
> The ETT idea sounds good in many ways, if what's been said is true. Of
> course I must be very skeptical, but replacing 'freeways' and airplane
> trips, removing the travel-emission of noise and pollution, greatly
> reducing the environmental impacts, including opening up habitat, all
> sound wonderful. They could be great connectors within carfree cities and
> in particular, between them. I'm not advocating for hypermobility, but if
> I had to choose cars and planes over EET, I'd choose EET given what
> *little* I know about it.
> But an international cross-oceanic network of *vacuum* tubes?
worked out. The best place to cross will be the Bering Strait - less than
100 miles, and less than 200' deep water. The discovery channel did a piece
on a trans-Atlantic tube big enough for huge maglev trains; ETT could be
built on the same route for less than 1/20th of the cost.
> One earthquake, serious crash, or attack on the tubes could cause someTransportation is dangerous; car accidents are the leading cause of
> very serious problems. It's a systemic weakness that wasn't addressed in
> the email about EET.
accidental death in the US. ETT substantially eliminates the MAJOR causes
of transportation related fatalities - safety is a systemic strength of ETT
- not a weakness. Earth quakes, car-jackings, terrorist activity, etc. cause
transportation related death, however, all combined these causes represent
less than 1% of fatalities.
ETT is at less risk for earth quakes than automobile bridges and elevated
highways. The BART tube under the bay sustained no damage, compared with
the huge amount of damage caused to above ground modes. (Tubes are
inherently a strong structure). ETT capsules are not a likely target for
hijackers, one can't elude apprehension in an ETT capsule as a car or
aircraft can, and automated control systems will not capitulate to demands.
>Is not a better question to ask: how can we make emergency access
> And then, how is emergency access going to work?
unnecessary? The ETT patent document on www.et3.com describes emergency
egress, and keep in mind that ETT eliminates over 95% of transportation
related risk - so egress means will likely go unused.
>Several hundred pages of details are worked out. A good place to start
> I can envision fixes for some of this, which increase expense and inrease
> failure probabilities. I'm not suggesting nobody has thought of them. But
> I'd like to see much more detail about the EET idea before hanging any
> hopes on it or investing much of any energy in it.
looking over the rough details is the ETT patent document available on the
website. I am happy to forward detail on any finer points you may have an
>That is one of the first questions many intelligent people ask. I usually
> (And how viable is it to maintain the vacuum, during normal use?)
> Jason Meggs
> Berkeley, CA, USA
respond with a question most people can relate to, but most take for
granted: How many times do you have to take your TV down to the vacuum
filling station? -- TV's require a thousand times better vacuum than ETT.
Vacuum science is highly developed, and mature; yet most people (even
scientists) do not have much knowledge of vacuum equipment and processes.
The adage "an ounce of prevention is worth a pound of cure" is eclipsed by
ETT - the payoff for the small amount of energy used to create and maintain
the vacuum is more than paid back by the huge amount of energy saved (more
Jason you made good comments and observations on ETT. Many people do not
take the time to consider the many possibilities for ETT to improve global
sustainability and equity; thanks for your consideration.
(c) 2004 all rights reserved. ETT, et3, MoPod, "space travel on earth"
e-tube, e-tubes, and the logos thereof are trademarks and or service marks
of et3.com Inc. For licensing information contact: et3@... ,
www.et3.com POB 1423, Crystal River FL 34423-1423 (352)257-1310>
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