Re: minsky vs solar sails

From: Technotranscendence (neptune@mars.superlink.net)
Date: Sat Jul 24 1999 - 15:59:19 MDT


On Saturday, July 24, 1999 9:10 AM Rik van Riel <riel@nl.linux.org> wrote:
> > Solar sails are good. When they are far from the sun (a towed
> > sun? elliptical speculation...) then they could shed or fold the
> > sails, deploy Bussard ramjet, and then scoop interstellar
> > hydrogen.
>
> Use a ramjet and scoop interstellar hydrogen? It sounds
> interesting, basically because I can't visualize how it
> works...

It uses magnetic fields to gather interstelling hydrogen, then compresses
the hydrogen and fuses it. I've heard it said that this would not work
because the hydrogen would create too much drag and pile up in front of the
craft. (I've not done the numbers, so I don't know.)

The artist's depictions of this I've seen look like a long tube with a
funnel in front. Of course, most of that funnel would be magnetic -- hence
invisible.

> Does anybody have a URL where I can see how these things
> are supposed to work?

See the links at:

http://www.transhuman.com/mirrors/www.aleph.se/Trans/Tech/Space/

Cheers!

Daniel Ust
http://mars.superlink.net/neptune/



This archive was generated by hypermail 2.1.5 : Fri Nov 01 2002 - 15:04:33 MST