Previous in Forum: Speed Check   Next in Forum: Missile That Took Down Malaysia Air Flight 17
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
Page 2 of 2: « First < Prev 1 2 Last »
Rating: Comments: Nested
Edward Barnett
Associate

Join Date: May 2018
Posts: 50

Magtube Question

05/20/2018 4:47 AM

I just joined to get some expert advice please.

Magtube would be similar to Hyperloop. Swissmetro and ET3 but instead of vacuum pumps the whole length it would have a 300kw jet compressor evacuating the one tonne of air that enters the 200 kilometre 6m diameter tunnel with every train as it is pushed toward it by the train.

Am I nuts or has nobody thought of eliminating the pressure build up this way.
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
dennisroof00
Member

Join Date: Jun 2019
Location: Berlin, Deutschland
Posts: 6
#99

Re: Magtube Question

07/24/2019 1:59 AM

What would be an acceptable acronym for this forum?

this is forum question be too irritating please answer this forum question
Reply Off Topic (Score 6)
dennisroof00
Member

Join Date: Jun 2019
Location: Berlin, Deutschland
Posts: 6
#100

Re: Magtube Question

07/29/2019 6:22 AM

Enter any 3 five-letter words here ex: alpha bravo tango

I am truly an problems for this question please help me
Reply Off Topic (Score 6)
robbiedoole1210
Participant

Join Date: Jul 2019
Location: Berlin, Deutschland
Posts: 1
#101

Re: Magtube Question

07/29/2019 6:39 AM

Thought I may get a bit more assistance with Magtube from Fuser Forums but the question they ask to register is beyond me please help me

Enter any 3 five-letter words here ex: alpha bravo tango
Reply
truth is not a compromise
Guru

Join Date: Apr 2011
Posts: 8006
Good Answers: 286
#103
In reply to #101

Re: Magtube Question

07/29/2019 11:47 AM

Alpha bravo tango

Or

Betas carps cobia

__________________
 Eternal vigilance is the price of knowledge. - George Santayana
Reply
dennisroof00
Member

Join Date: Jun 2019
Location: Berlin, Deutschland
Posts: 6
#104

Re: Magtube Question

08/05/2019 3:31 AM

Thought I may get a bit more assistance with Magtube from Fuser Forums but the question they ask to register is beyond me please help me

Write the following 3 words replacing the correct letters with the dots: a. m.cch.nrss
Reply Score 1 for Off Topic
maiklowe488
Participant

Join Date: Aug 2019
Location: Berlin, Deutschland
Posts: 2
#105

Re: Magtube Question

08/12/2019 3:17 AM

Thought I may get a bit more assistance with Magtube from Fuser Forums but the question they ask to register is beyond me please help me

Multiply the number of lowercase letters by the number of uppercase letters from the following text: 74 "3J! GhZ & üK8VGz6j Write the result as a word !
Reply Score 2 for Off Topic
redfred
Guru
Engineering Fields - Electrical Engineering - Been there, done that. Engineering Fields - Control Engineering - New Member

Join Date: Dec 2008
Location: Long Island NY
Posts: 15601
Good Answers: 981
#106
In reply to #105

Re: Magtube Question

08/12/2019 9:19 AM

Now, why would we tell you that? This is probably a useless request, too. If I wrote the code that made this bot trap, the text would be randomized making the answer different for each entry.

__________________
 "Don't disturb my circles." translation of Archimedes last words
Reply Off Topic (Score 5)
Edward Barnett
Associate

Join Date: May 2018
Posts: 50
#107

Re: Magtube Question

08/12/2019 9:28 PM

After much thought I now believe that the jet compressor would not be needed because the second half of the tunnel would be twice the pressure of the first and so on until near the next station it becomes above atmospheric pressure and can exhaust the 4 tonne of air that enters with each train.

Obviously initially the train would not be able to go 1,000 km/h so a number of trips would be needed until the pressure is reduced sufficiently for it to do so.
Reply Score 1 for Off Topic
JE in Chicago
Guru

Join Date: Apr 2008
Location: Chicago
Posts: 3990
Good Answers: 144
#108

Re: Magtube Question

08/12/2019 10:07 PM

Hyperloop = hyper waste of resources in pursuit of fantasy.

None of the original specs will ever be realized.

It's tantamount to a modern version of the jetsons simple flying car.. which is also a completely bogus dream of efficient travel for everyone.

Beam me up scotty.. coming soon to an investment portfolio near you.

__________________
 High Tolerance is Beautiful
Reply
Edward Barnett
Associate

Join Date: May 2018
Posts: 50
#109
In reply to #108

Re: Magtube Question

08/13/2019 4:04 AM

I agree completely.
Reply
maiklowe488
Participant

Join Date: Aug 2019
Location: Berlin, Deutschland
Posts: 2
#110

Re: Magtube Question

08/19/2019 2:42 AM

Thought I may get a bit more assistance with Magtube from Fuser Forums but the question they ask to register is beyond me please help me

What is the name of the male wild boar?
Reply Off Topic (Score 5)
redfred
Guru
Engineering Fields - Electrical Engineering - Been there, done that. Engineering Fields - Control Engineering - New Member

Join Date: Dec 2008
Location: Long Island NY
Posts: 15601
Good Answers: 981
#111
In reply to #110

Re: Magtube Question

08/19/2019 7:37 AM

Just as I thought, they randomize the question to prevent a bot from entering using a brute strength approach.

__________________
 "Don't disturb my circles." translation of Archimedes last words
Reply Off Topic (Score 5)
truth is not a compromise
Guru

Join Date: Apr 2011
Posts: 8006
Good Answers: 286
#112
In reply to #110

Re: Magtube Question

08/20/2019 7:42 PM

That is like asking what the name of a male domesticated bull is, or what the name of a female wild mare is.

__________________
 Eternal vigilance is the price of knowledge. - George Santayana
Reply Off Topic (Score 5)
redfred
Guru
Engineering Fields - Electrical Engineering - Been there, done that. Engineering Fields - Control Engineering - New Member

Join Date: Dec 2008
Location: Long Island NY
Posts: 15601
Good Answers: 981
#113
In reply to #112

Re: Magtube Question

08/20/2019 9:42 PM

I'm certain his name is Ferdinand. I guess her name is Jordache. On second thought her name might be Night.

__________________
 "Don't disturb my circles." translation of Archimedes last words
Reply Off Topic (Score 5)
Tornado
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#114
In reply to #110

Re: Magtube Question

08/21/2019 2:05 AM

Porky. The female wild sow is named Petunia.

__________________
 In vino veritas; in cervisia carmen; in aqua E. coli.
Reply Off Topic (Score 5)
dk.odi100
Participant

Join Date: Sep 2020
Posts: 1
#116

Re: Magtube Question

09/18/2020 9:20 AM

Do you know what is a sextant and how to use a sextant?
Reply Off Topic (Score 6)
Reply to Forum Thread
Have a Different Question?
Page 2 of 2: « First < Prev 1 2 Last »

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

dennisroof00 (6); dk.odi100 (1); Edward Barnett (49); Gadepalli Subrahmanyam (1); Geoffrey36 (1); HeadsUp (3); INNOVACERA-store (1); JE in Chicago (1); lyn (2); maiklowe488 (2); mijomar77 (2); Nothing is Impossible (1); redfred (19); robbiedoole1210 (1); SolarEagle (1); Stuart21 (4); Tornado (1); truth is not a compromise (20)

Previous in Forum: Speed Check   Next in Forum: Missile That Took Down Malaysia Air Flight 17

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Aerospace:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (39 right now)
Show Members
Advertisement