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]<javascript:>> > 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/**StarTram<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 [email protected] <javascript:>. >> To post to this group, send email to [email protected]<javascript:> >> . >> 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.
