MegaSack DRAW - 6pm Christmas Eve - LIVE on our YouTube Channel
Can't help but respond to this one. It really annoys me when articles are written by journalists with too little understanding, and so hint at something which isn't true.
"Friction-powered sidewall units slow the bike down". As will this 'non-friction powered' dynamo. It's getting energy from somewhere if it is harvesting it. That's how eddy current dynometers work and generate load.
Having said the above, great idea, and I hope that it works in business mode as it's a nice little application of known tech in a novel form. I like stuff like that.
To be fair, Motivforz, the article does acknowledge that
. You may want to try reading the entire article before making claims that aren't true yourself.there is a slight braking effect on the wheel, but that it is less pronounced than that caused by traditional sidewall dynamos.
Looks really god, ought to at $130 IMO!
I have a contactless flashing rear led, worked well until water got to it I think...still got a new one in a box.
Oh and check out the video - the losses are way less than even a hub dynamo.
