Re: Magnetic levitation for launch ?


"George Evans" <georgee3@xxxxxxxxxxxxx> wrote in message
news:BF869742.DEB%georgee3@xxxxxxxxxxxxxxxx
> in article d1e60f7f9a3fe72d2e0df9ba041bde60@xxxxxxxxx, Nomen Nescio at
> nobody@xxxxxxxxx wrote on 10/26/05 5:40 PM:
>
> > Another small detail overlooked in this discussion is Newton's Law of
> > Reaction. Mag-Lev launches in a tangential direction, as in trains,
cancel
> > out; that is, the trip going cancels the reaction of the trip coming.
> >
> > Such would not be the case in vertical launches. As the number of
launches
> > rise, the destabilizing effect on the Earth's rotation and/or orbit
would
> > soon be felt. Who would accept a changing period for a year or day as a
> > fair exchange for saving a few loads of rocket fuel?
>
> Nonsense. This is an infinitesimal concern and only if all the launches
> happen at around the same local time. Theoretically a launch at sun up
would
> exactly cancel the rotational effects of a launch at sun set.

Umm, perhaps the orbital impact, but not the rotational one.


>
> George Evans
>


.

Relevant Pages

  • Re: Magnetic levitation for launch ?
    ... Mag-Lev launches in a tangential direction, as in trains, cancel ... the trip going cancels the reaction of the trip coming. ... Such would not be the case in vertical launches. ...
    (sci.space.shuttle)
  • Launching any Office product launch the Installation Wizard 1st
    ... Everytime I launch Outlook, Word, Excel, etc, the Installation launches like ... multiple times to cancel it) the application launches and runs fine. ... It does this everytime on every app. ...
    (microsoft.public.office.misc)