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Scrapped Motors Don't Care About Direction - Hackaday

The way I learned about AC motors hands-on was using a dynamo from a bicycle. I used it to sync my nipkov disc to the net. Although it wasn't strong enough to drive the disc, in combination with a DC motor is kept the whole thing running and the dynamo ...

Nashik: SITRC students make affordable electric bicycle - Times of India

NASHIK: Students of Electrical Engineering Department Sandip Institute of Techology and Research Centre has manufactured an affordable electric bicycle which uses dynamo to charge its batteries instead of using rate of electricity from the distribution ...

The occurrence of magnetism in the universe - Phys.Org

Similarly to a bicycle dynamo converting motion into electricity, moving conductive fluids can generate magnetic fields. The so-called magnetic Reynolds number (the product of the fluid's flow velocity, expansion and conductivity) primarily determines ...

So it turns out rim dynamos don't suck anymore - BikeRadar.com

There are three versions of the Velogical dynamo available. As I intended to use the Velogical dynamo on my demi-go-fast Surly Steamroller test bike, I opted for the red 'Sport' model, which is designed to work from speeds of 10kph / 6.2mph and above.

Dynamo One Off Road Hybrid Electric Bike Hits Kickstarter - Geeky Gadgets

A Italian design team headed by Matteo Para based in Milan, have created a new hybrid motocross motorcycle combined with an electric bike to provide everything you need to explore the wilderness and enjoy off-road fun, without any additional stress.

These bicycle brakes add battery-free lighting - Treehugger

The latest iteration of a compact contactless bicycle dynamo lighting solution is smaller, lighter, and smarter than ever. By taking one of the major pain points of bike lights, batteries, completely out of the equation, Magnic Light is helping make it ...

magic magnic microlights illuminate your bike wheels with physics - Designboom

the system is the world's smallest contact and frictionless bicycle dynamo, which is integrated with lighting inside the brake shoe of a calliper brake. the patented technology functions by following the practice of eddy current induction; a magnetic ...

Magnic Light's New €1 Million Kickstarter Campaign Introduces Revolutionary All-in-1 Cycling Lights - PR Newswire (press release)

The core part is the world's smallest non-contact bicycle dynamo, that is integrated together with electronics and lighting system in the brake shoes. The worldwide patented technic developed by the German company Magnic Light is based on eddy current ...

WATCH: Clint Dempsey scores impressive goal in charity match with stunning bicycle kick - SoundersFC.com

... benefitted Hurricane Harvey victims, with all of the match's proceeds going to the relief fund. Organized by former Houston Dynamo and United States national team star Stu Holden, the star-studded rosters included Dempsey, Landon Donovan, Mia Hamm, ...

11spd: This week's best new bike bits - BikeRadar.com

Remember those awful bottle dynamos that ran against the tyre and powered your awful pre-LED lights? This is not one of those. The Velogical is a delightful little gadget which runs against the rim of one of your wheels, producing enough power to run ...

Shimano electronic gears could soon charge themselves - BikeRadar.com

While the patent (EP2535257 A1) was filed way back on 8 November 2011, it makes for incredibly interesting reading and, alongside the dynamo-equipped jockey wheel, describes a vision for a broader electronic eco-system that could also power a bike ...

'Don't shout at me about my bicycle lights' - Cambridge News

Every so often, some well-meaning person has decided to switch off my front light after I've parked my bicycle because they don't realise that they are dynamo-powered. Now, that is annoying. Like us on Facebook; Follow us on Twitter; Daily Newsletter.

Herrmans opens licensing on rear smart light - Bike Biz

The H-Cargo is suitable for both dynamo and e-bikes with a carrier of 120mm or 95 mm. The dynamo version works with 6V/3W and 6V/1.5W dynamo, and features Standlight function. H-Cargo E will run on any battery from 6–12V (DC). The H-Cargo rear light ...

Dynamo Retail Group Acquires Dutch Franchise Formula Fietscity - Bike Europe

AMERSFOORT, the Netherlands – Europe's second biggest dealer cooperative Dynamo Retail Group has acquired the much smaller Dutch franchise formula Fietscity (bicycle city). “Their category management introduction presented Dynamo Retail Group ...

Meet this farmer who designed water mill to produce electricity on his own - Oneindia

Siddappa Hulajogi who is a farmer from Somapur village in Gadag district of Karnataka, has designed a water mill to generate electricity of his own. Earlier he has also designed a mobile recharging unit using a tractor battery and also designed a tape ...

Houston Dynamo 0, Sporting KC 2 | US Open Cup Match Recap - MLSsoccer.com

Ike Opara just can't stop scoring. Just four days after his bicycle kick winner vs. the LA Galaxy, the Sporting Kansas City defender found the back of the net again to start his team on their way to a 2-0 win over the Houston Dynamo in the U.S. Open ...

Wheelswing is a contactless dynamo for your bike with a built-in battery - CNET

Wheelswing, a contactless dynamo from South Korean company With Us could be just the thing. Retailing for $135 (£105, AU$180) for the version with a built-in 1,000mAh battery, the dynamo sits near the bicycle rim, but not touching it, and generates a ...

What creates Earth's magnetic field? - Cosmos

Travelling to see the Northern or Southern lights has made its way into almost everyone's bucket list. But unknown to most, these beautiful displays of light are caused by dangerous cosmic rays that have been deflected by our Earth's magnetic field ...

Bike light laws in the UK: what you need to know - BikeRadar.com

Bike light technology has improved in leaps and bounds since the introduction of LED lights, and they now run brighter, for longer, and weigh less than old dynamo powered lamps. “If your lights cause undue dazzle or discomfort to other road users, then ...

The Cycle Life - Outside Magazine

(Schmidt has done an exceptional job of keeping up, with virtually every hub standard covered, including 110mm and even fat bikes.) Still, before you invest in a hub dynamo system, remember that you could face compatibility issues if you decide to ...

Bicycle lighting is illumination attached to bicycles whose purpose above all is, along with reflectors, to improve the visibility of the bicycle and its rider to other road users under circumstances of poor ambient illumination. A secondary purpose is to illuminate reflective materials such as cat's eyes and traffic signs. A third purpose may be to illuminate the roadway so that the rider can see the way ahead. Serving the latter purposes require much more luminous flux and thus more power.

Headlight mounted on the handle bar of bicycle
Early bicycle lighting: candle lamps, oil lamps and carbide lamps
Early bicycle lamps and two early bottle dynamos (1935)

Bicycle lighting is illumination attached to bicycles whose purpose above all is, along with reflectors, to improve the visibility of the bicycle and its rider to other road users under circumstances of poor ambient illumination. A secondary purpose is to illuminate reflective materials such as cat's eyes and traffic signs. A third purpose may be to illuminate the roadway so that the rider can see the way ahead. Serving the latter purposes require much more luminous flux and thus more power.

Many jurisdictions require one or more bicycle lights to be fitted to bicycles ridden at night — generally a white light in the front and a red light at the back.