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MIT Researchers Create New Tiny Energy Harvester

RogerRoast writes "Researchers at MIT have designed a device the size of a U.S. quarter that harvests energy from low-frequency vibrations, such as those that might be felt along a pipeline or bridge. The tiny energy harvester — known technically as a microelectromechanical system, or MEMS — picks up a wider range of vibrations than current designs, and is able to generate 100 times the power of devices of similar size."

8 of 101 comments (clear)

  1. I want to support this by outsider007 · · Score: 4, Funny

    But I fear that advances in vibrator technology will leave me at even more of a disadvantage.

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  2. MEMS by Dachannien · · Score: 3, Informative

    MEMS actually refers to any microscopic-scale electromechanical device, such as microscopic motors or other such devices, and not specifically to the device described in TFA.

  3. Re:Westwood invented it first by Kreigaffe · · Score: 2

    Actually, predating Tiberium, and I think much closer to what this device actually does..

    Frederick Pohl's Heechee saga makes mention of piezoelectric energy generation.. if I recall things right.. which basically operated with the same concept as this device.

    My memory of anything more specific is a bit shady. I last read those books nearly 20 years ago.

    For the record, they're a little over the head of a 5th grader, but not by as much as you'd think.

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  4. Re:Finally! by camperdave · · Score: 2

    Harleys don't need to be fast. They just need to look and sound like Harleys.

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  5. Re:Westwood invented it first by cyberchondriac · · Score: 2

    If you equate physical motion with vibration, at it's stripped-down essence, then ostensibly, yes. Especially when swinging your arms while walking, which could be defined as an oscillation of sorts...just at a really, really, low frequency-- 1Hz or less.

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  6. Re:Finally! by formfeed · · Score: 4, Insightful

    Finally, through the use of a hybrid regenerative powertrain, it might be possible to make Harleys as fast as other motorcycles! :-P

    Not possible. As part of their campaign against perpetuum mobiles the physics society passed a law that taking energy out of a vibration will also dampen the vibration. In other words: A fixed Harley would neither feel nor sound like a Harley. Which defeats the point of owning a Harley, one might as well buy a decent motorcycle.

  7. Re:Watches? by Asic+Eng · · Score: 3, Informative

    Build a better mousetrap and Slashdotters will tell you that mousetraps have already been invented...

  8. Re:Finally! by CaptSlaq · · Score: 2

    While the vibration part is still mostly true (rubber mounts have helped, but at the end of the day, it's a Vtwin, and the nature of them is to be a bit rough, particularly when you don't have balance shafts and such), the leaky part is a bit out of date: The latest Evolution motor and the new Revolution motor (The engine in the VRod, which is a radical departure from HD's Revolution) are, by all accounts, fairly good mills.