How did the melting wax exit the sphere? Probably a hole. So how did you patch the hole to retain perfect symmetry T?
On Fri, Feb 1, 2019, 10:03 PM Edward Angel <an...@cs.unm.edu wrote: > For two summers while I was an undergrad I worked on a crack propagation > project that was using high speed photography to image crack propagation on > thin seamless 18” copper cylinders. During the first summer, I made the > cylinders by first making solid wax molds that I lathed to the right shape. > I then electroplated copper on them before melting the wax away. The second > summer I worked on the photography side which was right out of Muybridge. > The film was in a 6 foot in diameter ring. In the middle was a spinning > prism at the end of a turbine which sent the light around the ring of film. > The whole thing was triggered by the crack breaking a small wire. We all > had to hide behind a barrier during each run as the whole assembly > was pretty delicately balanced. > > Ed > ____________ > > Ed Angel > > Founding Director, Art, Research, Technology and Science Laboratory > (ARTS Lab) > Professor Emeritus of Computer Science, University of New Mexico > > 1017 Sierra Pinon > Santa Fe, NM 87501 > 505-984-0136 (home) an...@cs.unm.edu > 505-453-4944 (cell) http://www.cs.unm.edu/~angel > > > > > On Jan 30, 2019, at 5:15 AM, Tom Johnson <t...@jtjohnson.com> wrote: > > See > https://www.nytimes.com/2015/11/23/science/a-side-serving-of-science-for-your-next-birthday-party.html?smid=fb-nytscience&smtyp=cur > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives back to 2003: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove > > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives back to 2003: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove >
============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com archives back to 2003: http://friam.471366.n2.nabble.com/ FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove
