No battery is needed. No friction on any parts of the bicycle. Based on a newly invented generator, this light system works regardless the bicycle's speed and weather conditions (not like normal dynamos!).
our website:
It's been ripped apart on this group before. The page does admit that it's not completely dragless, but shows quite a bit of ignorance about physics. If he's going from mechanical motion to LED's with fairly low loss he's doing well. If he's actually generating enough light to be seen then that's pretty good.
I suspect that he _is_ getting more efficiency at low speeds with his tumbling magnet idea, and it's pretty easy to beat the usual wheel-on-the-tire arrangement. I doubt that it'd light up the road like a good generator (I've always wanted a Sturmy-Archer Dynohub).
-- Tim Wescott Wescott Design Services http://www.wescottdesign.com
Hey, Conservation of Energy has finally been overcome! About time.
John
Congress just repealed it and Bush signed it, in case you did not notice.
-- Many thanks, Don Lancaster Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552 voice: (928)428-4073 email: don@tinaja.com Please visit my GURU\'s LAIR web site at http://www.tinaja.com
I thought he was a Conservative.
John
Wow, we always wanted this kind of perpetum mobile. ... It won't slow me down ... ( Worldwide patents panding. ) Great. Can I order a 10MW machine ?
Rene
-- Ing.Buero R.Tschaggelar - http://www.ibrtses.com & commercial newsgroups - http://www.talkto.net
Thanks Tim, The usual wheel-on-the-tire got improved meanwhile. They are using brushless DC motors with rather high efficieny. When you're out in the nowhere where at certain wheather conditions it can be darker than in a cow, even high brightness 10W are not that much. The local bike store sells twin 10W beams for $100++
Rene
-- Ing.Buero R.Tschaggelar - http://www.ibrtses.com & commercial newsgroups - http://www.talkto.net
There was an article in one of the mech.engineering mags (Eureka maybe) this month on a neat product that fits inside the pedal, using a small generator and capacitor to provide lighting from the rotation of the pedal shaft.
They are right there. Where is there friction? Drag yes, but not friction. They do admit that on another page.
What one needs is a lighting system with a rechargeable battery and a generator that cuts in when the bike is going downhill or braking.
-- Paul Hovnanian mailto:Paul@Hovnanian.com ------------------------------------------------------------------ "A doctor can bury his mistakes but an architect can only advise his client to plant vines." -- Frank Lloyd Wright
snip
month on a neat
provide lighting from
A bit OT, but the website in question has
?in the top LH corner
any ideas?
martin
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