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Electricity-free windup light
If that day comes when all the power is gone, candles won't be the only way to light your path. Here's an example, Time Your Light, a design concept by Jasper Hou that gets its power mechanically, working just like a windup doll.
Just give it a twist, and your world is illuminated. We can only hope there's not a constant ticking noise going along with the lighting effect. So is this a timer with a light attached, or a mechanical light that works like a timer?
It's not entirely clear. We suggest both, making this a multipurpose gadget, adding a "ding" at the end of the timer's countdown. Check out the pretty colors:
Via Yanko Design
By Xanapus at 2:24 PM ON 07/31/09
I wonder if that's 1 hour or 1 minute? I just got a Bell hand crank light for my bike and you have to crank it for 1 whole minute just to get 20 minutes of light. That would have to suck to have to keep turning this light on every minute lol.
By Joe at 2:38 PM ON 07/31/09
This could be interesting, but since there's no indication of how it would actually work--what's the point? Wouldn't it need to create electricity to power the light? A light isn't a wind-up doll.
By l3bowsk1 at 6:53 PM ON 07/31/09
I could see how this would work. If the wind-up mechanism coils a strong spring, which as it slowly unwinds moves a (very) lightweight dynamo, powering a (very) low-power LED.
I'm not an electrician, so I don't know if the sizes we're talking about would be feasible. But then again, maybe these lights are 5 feet tall, and size isn't an issue. I haven't seen any pictures with anything else in them to give a senze of scale. :-P
By edward at 9:47 PM ON 08/01/09
How would the timer move? is the up or down side moving for a count back timer?
By Random Hero at 4:43 AM ON 08/02/09
First. Why would anybody, let alone the inventor, think 1 minute is a feasible time for this to operate? It's just impracticable, that would be like having a candle light dinner using only matches.
Second. Of course the top moves, the bottom part is what it sits on. How can that move.
Common sense people. Come on!
By anon at 5:55 PM ON 08/02/09
It's a designer's concept. Typically, that means they've done no calculation or engineering.
A designer or artist slapped this together. Now he just has to find a sufficiently smart engineer to work out the little details.
By anon at 7:26 PM ON 08/02/09
Calculated for fun.
Assume 100% efficiency.
Assume a 0.3 Watt light.
Assume a 1 hour runtime for 1 full rotation.
Assume a device radius of 6cm.
Total energy for 1 hour is 3600 s * 0.3 W == 1080 Joules.
Work applied in rotation is the product of torque and rotational angle.
torque * angle = work
Solving for torque:
torque = work / angle
torque is force * moment_arm
force * moment_arm = work / angle
solve for force
force = work / (angle * moment_arm)
Substitute numbers from above:
force = 1080J / (2*pi * 6 cm)
force = 2864.79 newtons — about 644 pounds-force
By Deepak at 7:34 AM ON 08/08/09
Hi, i want to know the price of all ur products can u pl send me all details too. thanks Deepak
By interest at 3:32 AM ON 02/04/10
I dont think you sell this cause ive asked forever
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