Eric, Thanks for shedding light via your personal experience.
How do the magnetic lights do in rain/mud. It seems like it has to be close to the rim in order to generate the magnetic force to turn the generator inside the light, but is there any safety risks to being so close to the rim? On Monday, November 9, 2015 at 1:51:25 PM UTC-5, Eric Norris wrote: > > The lights have a rotating ring of small, very strong magnets in them, > which think are somehow turning in response to the wheel going by them, but > I’m not sure. > > As I said, in the real world, on real bikes, I can’t feel any kind of drag > from these lights. My guess is that they’re much more efficient than a > standard hub or bottle generator, which has much larger physical parts that > are rotated by the motion of the bike and, in the case of a bottle > generator, friction between the tire and the generator. The drag must be > measurable, but it’s not perceptible to me. > > Hold up the front wheel on a Magnic-equipped light and spin it … it just > spins, like the lights weren’t there. Even a very efficient hub generator, > with the lights off, doesn’t spin as easily. > > --Eric Norris > campyo...@me.com <javascript:> > www.campyonly.com > campyonlyguy.blogspot.com > > On Nov 9, 2015, at 10:30 AM, Curtis McKenzie <cmc...@gmail.com > <javascript:>> wrote: > > So true, not friction. > > However, work must be done to induce a current. What object is doing the > work? > > http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html > > Curtis "where friction is is not work" McKenzie > > On Mon, Nov 9, 2015 at 10:19 AM, Eric Norris <campyo...@me.com > <javascript:>> wrote: > >> This looks like it works on the same principle as the Magnic Lights, >> which I’ve been using for several years. Magnic just came out with Ver. 2 >> of their product, which added new circuitry for a steadier and brighter >> light. >> >> No friction!? Absolutely true. There is no contact between the Magnic >> light and the bike, other than the mount. The system generates energy from >> the motion of the (alloy or steel) rims passing by the light. >> >> I have one of the new headlights, but I haven’t had time to use it. The >> first gen lights aren’t nearly as bright as, say, an Edelux, but for me >> they’re certainly bright enough to ride with. They’re also always on, >> adding the benefit of daytime running lights. >> >> Despite the protests of skeptics, I would say that the lights have no >> effect on the bike’s speed. If there is, I can’t feel it. Yes, you don’t >> get something (light) for nothing, but the Magnic Lights come very, very >> close. >> >> P.S. The inventor of the Magnic Light is currently fighting several >> patent battles with other companies using the “eddy technology.” This might >> be one of them. >> >> P.P.S. Magnic Lights are available in the USA from Clever Cycles in >> Portland OR. >> >> --Eric Norris >> campyo...@me.com <javascript:> >> www.campyonly.com >> campyonlyguy.blogspot.com >> >> On Nov 9, 2015, at 10:02 AM, Curtis McKenzie <cmc...@gmail.com >> <javascript:>> wrote: >> >> Neo Light >> >> No friction? Interesting. Grin. >> >> Curtis "cannot get something for nothing" Mckenize >> >> On Mon, Nov 9, 2015 at 9:29 AM, dstein <davec...@gmail.com <javascript:>> >> wrote: >> >>> I got a little liquored up and backed a few too many kickstarter >>> projects the other night: >>> https://www.kickstarter.com/projects/1651132789/neo-worlds-most-powerful-friction-free-bikelight >>> >>> This looks cool but looks like it is just meant for city riding? Not a >>> lot of info on the site about brightnewss. Either way, I don't want to >>> spend the time and money on a dedicated dyno set so we'll see how this >>> turns out. Will write up on it when I have it >>> >>> >>> >>> >>> >>> >>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "RBW Owners Bunch" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to rbw-owners-bun...@googlegroups.com <javascript:>. >>> To post to this group, send email to rbw-owne...@googlegroups.com >>> <javascript:>. >>> Visit this group at http://groups.google.com/group/rbw-owners-bunch. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to rbw-owners-bun...@googlegroups.com <javascript:>. >> To post to this group, send email to rbw-owne...@googlegroups.com >> <javascript:>. >> Visit this group at http://groups.google.com/group/rbw-owners-bunch. >> For more options, visit https://groups.google.com/d/optout. >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to rbw-owners-bun...@googlegroups.com <javascript:>. >> To post to this group, send email to rbw-owne...@googlegroups.com >> <javascript:>. >> Visit this group at http://groups.google.com/group/rbw-owners-bunch. >> For more options, visit https://groups.google.com/d/optout. >> > > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to rbw-owners-bun...@googlegroups.com <javascript:>. > To post to this group, send email to rbw-owne...@googlegroups.com > <javascript:>. > Visit this group at http://groups.google.com/group/rbw-owners-bunch. > For more options, visit https://groups.google.com/d/optout. > > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. 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