Erich Dollansky wrote: > Hi, > > On Friday 24 February 2012 14:14:32 Matthew Seaman wrote: > > On 24/02/2012 06:59, Erich Dollansky wrote: > > > I live in Asia and they really have these things here. Just without the > > > horns. > > > > That would be what most people call a "ball." They have them in the > > west too... > > > do they vibrate when they get moved? > > The Asian balls are more like bells. There is something inside which make > them vibrate.
Yes there's an acoustic element to them I recall, about 3.5 cm (2.54 cm = 1") diameter, pack of 2. Pick one up & it feels like an outer stainless steel shell, connected by springs to an inner weight. Reflex was to want to saw it apart to see what was inside, & how they assembled the 2 halves. I suppose spot welding, then circular rim welding, then polishing then stainless steel finish ? Cheers, Julian -- Julian Stacey, BSD Unix Linux C Sys Eng Consultants Munich http://berklix.com Reply below not above, cumulative like a play script, & indent with "> ". Format: Plain text. Not HTML, multipart/alternative, base64, quoted-printable. Mail from @yahoo dumped @berklix. http://berklix.org/yahoo/ _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"