Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 4 / 7   >   >>
BobsView
User Rank
Author
re: NYC to London on a 4,000 mph vacuum train
BobsView   7/18/2012 6:06:30 PM
NO RATINGS
I can understand why the Chinese government would be interested in this. Right before the Chinese New Year, millions of migrant workers are stranded for days in train stations with no food or sanitation. For a very revealing and entertaining documentary about this, check out the movie, "Last Train Home" available on Netflix and Amazon (and other places).

Andrzej11
User Rank
Author
re: NYC to London on a 4,000 mph vacuum train
Andrzej11   7/18/2012 5:31:30 PM
NO RATINGS
If it's free, like some of the licensees claim it may be, then I would say the lineups would stretch for miles on the most popular routes.

Andrzej11
User Rank
Author
re: NYC to London on a 4,000 mph vacuum train
Andrzej11   7/18/2012 5:18:22 PM
NO RATINGS
I need to make a further clarification. 5' is the optimal tube width and 51” is the optimal width of the capsule.

Andrzej11
User Rank
Author
re: NYC to London on a 4,000 mph vacuum train
Andrzej11   7/18/2012 5:14:11 PM
NO RATINGS
They claim that because of the light weight of their capsules, they use 1/20 of the material that high speed rail would use.

Andrzej11
User Rank
Author
re: NYC to London on a 4,000 mph vacuum train
Andrzej11   7/18/2012 5:13:15 PM
NO RATINGS
I have not checked the veracity of their claims. They state that they have an engineering study which backs their claims. It was apparently good enough for over 95 individuals/groups to purchase licenses for this technology. It sounds impressive at first but the license fee is only $100 so not really. However they do have a peer reviewed paper which was published last year. Check it out here, http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&sqi=2&ved=0CCMQFjAA&url=http%3A%2F%2Fjmt.swjtu.edu.cn%2FEN%2Farticle%2FdownloadArticleFile.do%3FattachType%3DPDF%26id%3D8357&ei=sWBvT-L2JcfciALyotC9BQ&usg=AFQjCNG6j3ST1LLcd_gCAdhCqoxoci8F1g

Duane Benson
User Rank
Author
re: NYC to London on a 4,000 mph vacuum train
Duane Benson   7/18/2012 3:49:47 PM
NO RATINGS
I'd say that this is a person/group that doesn't understand the issues involved in scaling. Just because something works for shooting mail around in a building, or could be viable as a few mile demonstrator, doesn't mean that it is feasible on a large scale. And, really? who is going cram themselves into a 24" capsule (coffin?) and lay in one spot for an hour or two.

BobsView
User Rank
Author
re: NYC to London on a 4,000 mph vacuum train
BobsView   7/18/2012 3:49:47 PM
NO RATINGS
"OOPS, what if there is a small problem problem while YOU are mid-way under the Atlantic..." By that reasoning, commercial flight across the ocean would not be feasible. What if the engine failed, etc, etc. The problem I have with this whole concept is flying along at 2500 MPH and smashing into a stalled vehicle ahead. I hope the patents have a super reliable way to detect obstacles in the path. Even a pebble in the path could be disasterous.

MikeSB
User Rank
Author
re: NYC to London on a 4,000 mph vacuum train
MikeSB   7/18/2012 2:30:56 PM
NO RATINGS
Has it not occurred to you that their claims are completely unsubstantiated and they might just be lying to get venture capital?

NewYankEE
User Rank
Author
re: NYC to London on a 4,000 mph vacuum train
NewYankEE   7/18/2012 12:21:51 PM
NO RATINGS
It's all about the specific claims.

NewYankEE
User Rank
Author
re: NYC to London on a 4,000 mph vacuum train
NewYankEE   7/18/2012 12:19:38 PM
NO RATINGS
"It is hard to imagine anything worse than to be stuck thousands of miles away from land, under the ocean, in a vacuum tube." Maybe falling from the sky packed in a tube with other passengers and jet fuel might be worse but we risk that too (worse unless you pass out 1st). Travelers take risks - we only imagine we control them enough to get by. And FWIW I agree this sounds like another boondoggle project someone got a grant to study...still wishing for that Bond/LostInSpace jetpack to fly to work...or again a water slide would be nice in this weather :-)

<<   <   Page 4 / 7   >   >>


Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Radio
NEXT UPCOMING BROADCAST

What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.
Like Us on Facebook
Special Video Section
LED lighting is an important feature in today’s and future ...
05:27
The LT8602 has two high voltage buck regulators with an ...
05:18
The quality and reliability of Mill-Max's two-piece ...
01:34
Why the multicopter? It has every thing in it. 58 of ...
Security is important in all parts of the IoT chain, ...
Infineon explains their philosophy and why the multicopter ...
The LTC4282 Hot SwapTM controller allows a board to be ...
This video highlights the Zynq® UltraScale+™ MPSoC, and sho...
Homeowners may soon be able to store the energy generated ...
The LTC®6363 is a low power, low noise, fully differential ...
See the Virtex® UltraScale+™ FPGA with 32.75G backplane ...
Vincent Ching, applications engineer at Avago Technologies, ...
The LT®6375 is a unity-gain difference amplifier which ...
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LTC®2983 measures a wide variety of temperature sensors ...
The LTC®3886 is a dual PolyPhase DC/DC synchronous ...
The LTC®2348-18 is an 18-bit, low noise 8-channel ...
The LT®3042 is a high performance low dropout linear ...