Hi, A long time ago (~1955), when mechanical watches were the only sort on the market, and pocket watch ("onions") were not only a curiosity, I remember seeing in watchmaker showcase several of them suspended by their ring on little hooks, and the coupling was enough to make the oscillate in synchronism. Regards, Jean-Louis Le 05/10/2012 14:58, Marco IK1ODO -2 a écrit : > Very nice experiment on oscillator coupling: > http://blogs.discovermagazine.com/cosmicvariance/2012/10/01/you-are-getting-sleeeeeeepy/ > > > Quite time-nuts style, I would say. > > Marco IK1ODO > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >