[FT] New on the Solar Thrust site

Hi all -

I've finally finished the article on orbital transfers that goes along with
the Java applet I posted a few days ago (I also corrected a few minor
things in the applet itself).  This article is very algebra-heavy, but
hopefully explains things fairly clearly. Most of this is taken from the
reference materials I used when I worked in the orbital mechanics branch
of NASA/MSFC.  For those who want the procedure and don't care about the
derivation, skip all the way down to the bottom for a cookbook procedure for
astrogation. As always, if (when) anyone notices the inevitable mistakes,
please let me know and I'll correct them.

Also, I've added an article that I wrote last year on gravitational wave
detectors as spacecraft sensors. While I don't think such a thing is viable
right now (or in the near future), since it's what I do for a living I thought
I'd go ahead and look at some possiblities.

Enjoy!