Title: Senior Technical Staff
Dates: April, 1989 - August, 1997
Phone: (612) 624-1867
Activities at the Geometry Center
I performed a variety of technical tasks at the Geometry Center,
- programming and other assistance for visitors and staff
- system administration and systems programming
- graphics software development and consultation
- software tool development and support
- video tool development and support
Accomplishments at the Center
- Wrote, and helped design, software being used by the
AMS Preprint Server.
- Contributed to animation and production of the Geometry Center's
three major videos,
Outside In, and
The Shape of Space.
- Was one of three principal architects and programmers of the Center's
main visualization tool, Geomview.
- Designed and produced mapping for University of Minnesota IT Week 1993
Building a New World globe project and its successors.
- Assisted in creating Triangle Tilings museum exhibit, in use at
Science Museum of Minnesota.
- Created high-speed video animation recording utilities, and library of
The environment at the Center has offered a fairly rich niche to do what
I enjoy: tool-building, problem-solving, and acting as technical
assistant in scientific projects, in UNIX environments.
Among tools I've been involved in writing, the one which has had the
most effect on the rest of the world is
Geomview, our 3-D viewer.
Geomview has formed the basis for many further projects large and small,
including the Shape of Space and many lesser animations, and the
Orrery solar-system demonstration.
In this as in previous positions, I tend to fall into the role of
a technical point-person for the group.
- Served as computer-graphics consultant for Long Range Aperiodic Order
Workshop at the Fields Institute, University of Toronto,
September - December, 1995.
- 1991 - present, Senior Technical Staff,
Geometry Center, University of Minnesota
- 1989 - 1991, Technical Staff,
Geometry Supercomputer Project, University of Minnesota
Duties similar to present position.
- 1986 - 1989, Communications Group,
Minnesota Supercomputer Center
TCP/IP network construction and administration,
systems programming and diagnostic tool development
on supercomputers and workstations.
- 1984 - 1986, Engineer,
VLSI circuit design, systems and design-tool programming.
- 1981 - 1983, Programmer,
University of Minnesota Computing Center
VAX/VMS systems, network, and graphics programming,
system administration, and user assistance.
- 1979 - 1981, Programmer/engineer,
Joyce Project, Computer Science Dept., University of Minnesota
Helping port UCSD Pascal and UNIX to an early prototype workstation,
and write systems and applications software for it.
- Undergraduate in Computer Science, University of Minnesota,
specializing in human and machine languages, through 1982.
Lost in the Funhouse: an application of dynamic projective geometry,
by Susan Addington and Stuart Levy, in Geometry Turned On,
eds. Doris Schattschneider and Jim King, pub. by Mathematical
Association of America, 1997. Wrote a 3-D graphical program,
described in the article, which illustrates the Ames distorted-room
Internet Request for Comment (RFC) 1053, "Telnet X.3 PAD Option",
with Thomas Jacobson, 1988.