Boomerang Addicts Can Now Charge Batteries

I find this concept cute and odd – that would mean oddly cute. The Boo is a battery charging boomerang. It holds 3 AAA batteries and just by playing with it, the device converts rotary motion into energy. The surface is covered in silicon to protect the precious innards from impact. In the center is a dynamically changing icon that indicates charge levels. Simple idea right? Would you buy one?

Designers: Ji-youn Kim, Soon-young Yang & Hwan-ju Jeon

boo2

Boo Self Generate Electricity System by Ji-youn Kim, Jeon Hwanju & Yang Soonyoun

15 Comments

  • Jeff says:

    Probably wouldn’t work – even if the amount of energy in each toss of the boomerang were completely converted into electrical energy, it’d still take a ridiculous amount of throws to achieve a full charge.

    Then take into account that the generator in the middle of that boomerang would be pretty small, and wouldn’t be able to achieve maximum charging efficiency (Going from a stand-still to a spin, the center would have to be considerably heavier than the edges, or vice versa, in order to actually get the generator going)

  • Really says:

    Center would probably have to be free-rotating independent from the rest of the boomerang. Coils inside the blades and another coil in the center connected in a circuit to the cell would charge the cell in question, but as the center begins to catch up to the rest of the device, the rest of the device slows down. Work is expended in each throw converting energy into a very small amount of stored energy.

    You could get so much more umph out of a capacitor, a permanent magnet, and a stationary coil of magnet wire that you just push the magnet through to induce a flux.

  • Margot says:

    But what could you use the energy for, really? And why add batteries to something that works without them just as well?

  • Ankur Jalota says:

    Well if it’s practicality you’re looking for, then let’s think of a more practical product that you’re always moving around: your shoes. It’d be great to carry a spare mobile battery, and swap it out when needed.

  • Nick says:

    @Margot

    Quote”But what could you use the energy for, really? And why add batteries to something that works without them just as well?”

    LMAO You put flat batteries in it to charge them. Not to power the boomerang! The batteries are then used in a normal fashion for anything you desire – like a remote control.

    Or don’t put batteries in and just throw a boomerang at the television. Hey – why have a remote that requires batteries – why not ‘throw’ something at the television? quick flick of the wrist could change a channel?

  • Esmond says:

    Would I buy one? No.

    It seems that people nowadays just take something and add an oh-i-can-charge-while-I-do-this feature without any practical consideration.

  • “Or don’t put batteries in and just throw a boomerang at the television. Hey – why have a remote that requires batteries – why not ‘throw’ something at the television? quick flick of the wrist could change a channel?”

    Why not throw the television? Why not throw yourself at the television?…

    People nowadays, specially around here, just make a stupid question, throw around some 3D that connects to that question at some level, and think they have a product.

    That IS NOT design.

  • Nick says:

    Victor – You suck! Apart from a less than constructive comment you obviously don’t understand the notion of sarcasm. “That IS NOT design” More inventive than your design folio – lol

    I realise the irony of writing an equally less-than-constructive comment like this but meh…

    The bottom line is that yes – what might have first been a cool idea is definitely not practical. And certainly can not be considered a viable product.

  • Nick says:

    haha Victor! “That IS NOT Design”? Maybe I should channel my energy into designing naff tattoo patterns, ugly jewellery and funny-looking concept cars.

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