Claim: Gravity could be source of sustainable energy

Posted: May 31, 2018 by oldbrew in Energy, Gravity, innovation, research
Tags:


Of course this may sound ‘far out’, but let’s have a look at the short video from VoA News anyway.

In today’s energy-hungry world, scientists are constantly revisiting every renewable resource looking for ways to increase efficiency.

One researcher in the Netherlands believes even gravity can be harnessed to produce free electricity on a scale sufficient to power small appliances.

VoA’s George Putic has more.

Comments
  1. tallbloke says:

    I wonder if I’ll live long enough to find out how long it needs to run to recoup the energy put into making the device.

    It reminds me of Reidar Finsrud’s ‘perpetuum mobile’. It runs for weeks at a time.

  2. Bloke down the pub says:

    Energy from gravity has been around a long time. It’s more usually known as tidal.

  3. Bloke down the pub says:

    Here’s my idea for a storage/generation device, for what it’s worth. Anchor a large ballast tank to the bottom of deep water via a winched cable. Release enough air from the tank so that it has negative buoyancy and winch the tank down to the bottom. Using energy when it is freely available, pump air into the tank to regain positive buoyancy. When energy is needed from the system, allow the tank to float towards the surface which would pull out the cable, providing kinetic energy that could be recovered. If the system is in tidal waters, extra energy out cf what is expended could be achieved by recovering the energy when the tide is in. I’ve not done any calculations to determine if this is practicable but I can’t see any show-stoppers, least aways, none that the greenies haven’t been willing to ignore for other projects.

  4. Kip Hansen says:

    well, hydro dams work using the pull of gravity on the water falling down through the turbines spinning the generators.

    The Piezoelectric idea is interesting — but my Piezoelectric sparkers always fail me at the most inopportune moments.

    The scientific question is how much voltage/amperage can one get out of how much piezo material.

  5. p.g.sharrow says:

    I did make a series of gravity batteries. Definitely got voltage, Positive on top, negative on bottom, but no current.
    Gravity warps the atomic dielectric, that is it distorts the the nucleus of the atom from it’s center within the electron shell. Just like the distortion caused electrostaticly within a capacitor.
    Perhaps a hint as to the nature of gravity ?…pg

  6. cognog2 says:

    Definitely Old Hat. there are still thousands of grandfather clocks still ticking away using gravity.
    We also use it via the atmospheric Rankine Cycle where water is pumped up into the clouds, form rain, fill the reservoirs which drive the turbines to produce electricity
    Trouble is that the energy/weight ratio is very small.

  7. stpaulchuck says:

    tallbloke says:
    May 31, 2018 at 10:47 am

    ha ha, ya beat me to it! That’s the first thing I thought of when I saw his ‘amazing’ machine. He’ll get suckers to cough up a million or three then disappear.

  8. A C Osborn says:

    How about the Atmospheric Potential Gradient, if that could be harnessed it would provide free power for as long as there is an atmosphere and a solar wind.
    It has been studied since the days of Tesla and we are no nearer now than he was.
    But is the effort really being put in to the research?

  9. E.M.Smith says:

    I almost choked at his “small lamp” making the wobble happen. that looked like about 100 W in for micro-Watts of wobble…

    When he has one running with even 1 W net gain energy out, wake me up…

  10. BoyfromTottenham says:

    cognog2 – er, grandfather (pendulum) clocks sorta work on gravity, if they are weight rather than spring driven, but when the weight reaches full travel it has to be manually lifted back up, so no free lunch there. The Atmos clock on the other hand uses changes in air pressure on a metal bellows to self-wind a spring. In theory, Atmos clocks should run indefinitely. I’m still looking for a source of free energy – I find my body needs more as I get older.

  11. dai davies says:

    The claim that the gravitational derivation of the atmospheric lapse rate implies a PMM is over a century old, and false.

    In principle you could run a generator using the temperature difference over the lower 10km of the atmosphere. It wouldn’t be a PMM but draining thermal energy from the atmosphere.

    It would be extremely expensive to set up and extremely inefficient, but when did that stop government funding. Now, where can I download a form.

    dai

  12. dscott says:

    Actually … nothing reliable mind you, but rain water captured at a height and then emptied to ground level via a small water turbine, think old fashioned bucket wheel, turning a DC motor to charge a battery. In rainy climates like the tropics or Seattle Washington on a residential scale it may be useful on the same level as a solar system. Think of it as a rain powered water wheel instead of the scenic water wheel driven by a creek. The roof and gutters of a house is a convenient existing catchment system that could be made dual purpose for a minor investment.

    It’s not as far fetched as one might think IF one thinks reasonably small enough and don’t get whacky with an idea to power the utility grid.

  13. dscott says:

    Another idea, is using synchronous motors tied together. As you know, if you spin one synchronous motor and let it go, the other connected motor will spin and give a feedback causing both motors to accelerate to destruction if left unchecked. The feedback energy has to come from somewhere? Probably, the earth’s magnetic field. So that being the case, one could allow the wind to impart a small bump to the synchronous motor set and divert the excess power (feedback) to a battery storage system.

    Or, if it is possible, place each of the two synchronous motors in divergent magnetic fields to draw off the excess feedback from the difference in potential of the magnetic fields. The magnetic fields on earth are not as uniform as one might think…they are called magnetic anomaly fields. https://mrdata.usgs.gov/magnetic/ The trick would be to find areas that are fairly close together to minimize copper wire loses.

  14. karabar says:

    A perpetual motion machine!
    When the energy input to make it wobble is less than the energy produced, I’ll be a monkey’s uncle!