Michael John Muuss (October 16, 1958 - November 20, 2000) was the author of the freeware network tool Ping. A graduate of Johns Hopkins University, Muuss was a senior scientist at the U.S. Army Research Lab in Maryland when he died, specialising in geometric solid modeling, ray-tracing, MIMD architectures and digital computer networks. Wikipedia
The definitive Wikipedia entry for Mike Muuss. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Mike_Muuss
The BRL-CAD package is a powerful Constructive Solid Geometry (CSG) solid modeling system with over 20 years development and production use by the U.S. military. brlcad.org/