The startram design envisages very large superconductive coils. From recollection these are many miles in diameter, like the CERN ring. Is such a concept feasible?
A On Feb 20, 2013 4:06 PM, "Daniel Rosenberg" <[email protected]> wrote: > Magnetic levitation is a small distance phenomenon. > Talking about magnetically levitating large masses large distances is on > par with evoking a sky hook. > Magnets are not magic, and their size to strength ratio is important to > understand. > The science is fairly constraining. Think motors. The stator rotor gap is > as tiny as possible for good coupling. > Best regards, > --Daniel > > On Tuesday, February 19, 2013 11:06:28 AM UTC-5, andrewjlockley wrote: >> >> I suspect the design of the vehicle would take that into account. >> >> I'm generally uninterested in the feasibility of the star tram - but the >> magnetic levitation component of the design is of particular interest >> >> A >> On Feb 19, 2013 3:50 PM, "Russell Seitz" <[email protected]> wrote: >> >>> Andrew, things leaving a long, gently-sloping evacuated tube at orbital >>> velocity will interact with the stratosphere in much the same way as the >>> object that entered it over Chelyabinsk last week. >>> >>> On Tuesday, February 19, 2013 10:13:10 AM UTC-5, andrewjlockley wrote: >>>> >>>> Hi >>>> >>>> I came across the 'Star Tram' concept some time ago >>>> http://en.wikipedia.org/wiki/**S**tarTram<http://en.wikipedia.org/wiki/StarTram> >>>> >>>> The proposal is for a long, gently-sloping evacuated tube. This is >>>> magnetically-levitated at one end, and anchored at the other. It's >>>> for launching payloads to space. If it is indeed possible to use >>>> magnetic levitation to lift something so massive, then surely creating >>>> some kind of magnetic elevator to carry sulphur to the stratosphere >>>> wouldn't be too tricky? >>>> >>>> I am unable to assess the credibility of the startram idea, or >>>> understand its purported working principles. Can anyone shed light on >>>> this? >>>> >>>> A >>>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "geoengineering" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to geoengineerin...@**googlegroups.com. >>> To post to this group, send email to geoengi...@googlegroups.**com. >>> Visit this group at http://groups.google.com/** >>> group/geoengineering?hl=en<http://groups.google.com/group/geoengineering?hl=en> >>> . >>> For more options, visit >>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>> . >>> >>> >>> >> -- > You received this message because you are subscribed to the Google Groups > "geoengineering" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/geoengineering?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
