On Friday 26 April 2013 18:35:28 andy pugh did opine: > On 26 April 2013 22:44, Peter C. Wallace <p...@mesanet.com> wrote: > > How many solenoids are needed? > > I can think of a scheme using only one. > It needs to travel just behind the "shuttle" and know where it is.
I'd think that would put some serious speed constraints on it as I have seen the shuttle thrown for a 4 foot span in about 1 second flat. That seems abusive, but I've seen it. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! My views <http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml> Four fifths of the perjury in the world is expended on tombstones, women and competitors. -- Lord Thomas Dewar A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
