Ball Mice Strike Back
I think all of you will agree that a wireless mouse is more convenient than a wired one. But it still has one annoying drawback: its battery needs to be recharged from time to time. And it actually weighs more than usual "rodents".
That's why engineers from a start-up named Dynamo-Ball offered such an original, though essentially primitive solution, and again proved that progress is spiral. They suggested we get back to using those long-forgotten ball mice. It's very simple: just calculate how much energy we waste spend on moving the mouse around, isn't it a pity to lose calories in such a way? Why not tranform this mechanical energy of ball rotation into electricity?
The current level of electromechanics enabled to install a miniature high-efficiency generator into a mouse. You won't even notice this slight additional resistance while moving the manupulator around. This solution is fully autonomous and is capable of working even without any batteries. The latter is needed only as an energy buffer as the dynamo might still let you down in higher-precision applications (like games).
The budget models of such mice without batteries will cost about $10-15. Gamer models are being tested at the moment. The developers also promised to solive the ball cleaning issue with a miniature ultrasonic generator that will shake off dirt from time to time.
Moreover, the company is not going to stop and already focuses on the next innovation - wireless keyboards. These devices can get electricity from the reciprocating key movement.
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