How about a black hole? Simply shoot a laser so the light gets captured in a stable orbit around it, with the time dilation as an added bonus the light should last a good long time, "simply" maneuver a mirror in place to extract the light.
On Sat, Jun 13, 2009 at 10:54 AM, <mix...@bigpond.com> wrote: > In reply to Mark Iverson's message of Wed, 10 Jun 2009 20:29:14 -0700: > Hi, > [snip] > >So, to summarize, although some physical/atomic phenomenon exists that > "kind of, sort of," acts like > >a photonic battery, there really isn't any commercial or practical product > with reasonable > >functionality... > > > >Thx! > > > >-Mark > > BTW - all phosphorescent materials are essentially photonic batteries. > > Regards, > > Robin van Spaandonk > > http://rvanspaa.freehostia.com/Project.html > >
