http://www.ligo.caltech.edu/~pshawhan

I am a physicist working on the Laser Interferometer Gravitational-Wave Observatory (LIGO) project.
One of my colleagues is [Phil Ehrens], who is well known to many Tclers.  I started using Tcl/Tk in late
1999 and have done several very useful things with it (if I may say so myself).  The first project I undertook,
a GUI for accessing LIGO data, is written in pure Tcl/Tk and has grown over the years to more than 22000 lines --
all in a single file!  Some people may find the idea of a 22000-line Tcl script appalling, but it avoids any
kind of installation issues: just put it wherever you want, on any computer with Tcl/Tk installed, and
execute it.  (This pre-dated the introduction of starkits by a few years.)