"The drag must be measurable, but it’s not perceptible to me." That is all that matters!
Enjoy! Curtis On Mon, Nov 9, 2015 at 10:50 AM, Eric Norris <[email protected]> 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 > [email protected] > www.campyonly.com > campyonlyguy.blogspot.com > > On Nov 9, 2015, at 10:30 AM, Curtis McKenzie <[email protected]> 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 <[email protected]> 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 >> [email protected] >> www.campyonly.com >> campyonlyguy.blogspot.com >> >> On Nov 9, 2015, at 10:02 AM, Curtis McKenzie <[email protected]> wrote: >> >> Neo Light >> >> No friction? Interesting. Grin. >> >> Curtis "cannot get something for nothing" Mckenize >> >> On Mon, Nov 9, 2015 at 9:29 AM, dstein <[email protected]> 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 [email protected]. >>> To post to this group, send email to [email protected]. >>> 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 [email protected]. >> To post to this group, send email to [email protected]. >> 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 [email protected]. >> To post to this group, send email to [email protected]. >> 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 [email protected]. > To post to this group, send email to [email protected]. > 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 [email protected]. > To post to this group, send email to [email protected]. > 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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