Directory:Veljko Milkovic:Latest

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Latest developments in the work of Serbian inventor, Directory:Milkovic Two-Stage Mechanical Oscillator, shows how leveraged secondary oscillations evince around twelve times more energy than the input energy supplied to the primary pendulum.

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Latest Developments

March 3, 2014

Free Energy Blog:2014:03:03 - Jovan Marjanovic has explained its work in details in his book and proposed some modifications like using three coils instead of two coils as used in original Phi generator. (Free Energy Blog March 3, 2014)

December 28, 2013

Free Energy Blog:2013:12:28 - A Numerical Analysis using the Runge Kutta Method to Solve the Euler Lagrange Equation for a Double Pendulum with Mechanical Load. ...From these simulations we conclude that it is possible to extract considerably more energy from a double pendulum system than is used to set the outer pendulum in motion initially. (Free Energy Blog December 28, 2013)

August 29, 2013
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Directory:Gravity Motors > Directory:Secondary Oscillations > Directory:Milkovic Two-Stage Mechanical Oscillator > Another academic paper concluding overunity in the Milkovic Two-Stage Oscillator - "It was observed that ... the input energy given to the system is equal to the potential energy required to raise the pendulum and is equal to 25.7 J. ...The total energy obtained is equal to 52.188 J -- overunity." (News:Pure Energy Blog August 28, 2013)
May 13, 2012
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Directory:Gravity Motors > Directory:Secondary Oscillations > Simple demo of centrifugal power harnessing by MagnaMoRo - Centripetal force is the key. It is a free force generated by centrifugal activity of mass. All we need do is harness it! Here we have a little fun while showing off the ability to obtain Overunity. I cause my daughter to bounce up and down with just to input power of my index finger... (YouTube / MagnaMoRo May 1, 2012)
March 31, 2012
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Directory:Gravity Motors / Directory:Milkovic Two-Stage Mechanical Oscillator >Recommendations for Construction and Efficiency Measuring of the Two-Stage Mechanical Oscillator (pdf) - Jovan Marjanovic provides one of the most essential papers in the understanding of the physics of the two-stage oscillator or Pendulum-Lever Energy System. For the first time, this paper contains all physics in one place + model builder guidelines for a highly-efficient embodiment + suggestions for efficiency measurements. ( April 02, 2012)
Jan. 24, 2012
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Directory:Gravity Motors / Directory:Milkovic Two-Stage Mechanical Oscillator >An Invention Possibly Greater Than the Wheel (pdf) – Wide usage of the rotation, mainly in the form of a wheel, is deemed to be the best solution, which even new constructions are aspiring to use. However, last years some experiments have achieved greater efficiency with usage of oscillatory devices. ( January 24, 2012)
Jan. 24, 2012
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Directory:Gravity Motors / Directory:Milkovic Two-Stage Mechanical Oscillator >Two-Stage and Three-Stage Oscillator as a Compressor (pdf) – The purpose of this paper, written by Zoran Markovic, Ph.D., is to explain the functioning of two-stage and three-stage mechanical oscillator, using compressed air, to demonstrate the possibility of generation of excess energy in two-stage mechanical oscillator invented by academician Veljko Milkovic. The paper discusses the dynamics of the body when gravitational forces act upon it. ( January 24, 2012)
September 19, 2011
Directory:Gravity Motors > Directory:Milkovic Two-Stage Mechanical Oscillator >The World of Pendulum Power - A new specialized web presentation dedicated to the technology of the two-stage oscillator. Now all information in one place videos, patents, theories, experiments... as well as the new graphic presentation of the potential of practical application. ( September 19, 2011)
June 14, 2011
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Directory:Gravity Motors > Directory:Milkovic Two-Stage Mechanical Oscillator >Power of the Pendulum - Proof of Ultra-Efficiency? (pdf) - Branislav Serdar, M.Sc. in Mechanical Engineering, has conducted his own research and expertise of Veljko Milkovic's elastic string pendulum experiment. The aim of this paper with accompanying video was to observe differences in the systems under the effect of impact forces on the metal ball of the pendulum, as well as to analyze and compare the results obtained. ( June 14, 2011)
May 11, 2011
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Directory:Gravity Motors / Directory:Milkovic Two-Stage Mechanical Oscillator >The Secret of Free Energy from the Pendulum (pdf) - In this work, the author for the first time has identified the centrifugal force as a source of over unity work under some conditions and also calculated maximal efficiency quotients of the machine. Problems which easy can undermine over unity behavior of machine were identified and solutions were proposed. ( May 11, 2011)
March 13, 2011
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Directory:Gravity Motors > Directory:Secondary Oscillations > Directory:Milkovic Two-Stage Mechanical Oscillator > Power of the Pendulum - Proof of Overunity? (video) - Veljko Milkovic demonstrates a scientific experiment showing the advantage of using the pendulum for overcoming friction force of a weight in comparison with direct pushing of it and asks the community if this experiment proves over unity behavior of the system or not? ( March 13, 2011)
Feb. 18, 2011
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Directory:Gravity Motors > Directory:Secondary Oscillations > Directory:Milkovic Two-Stage Mechanical Oscillator >Pendulum Eases Pumping of Water (video) – Serbian inventor Veljko Milkovic demonstrates a new design of his hand water pump with a pendulum where it is possible to use a little finger for pumping. ( February 18, 2011)
February 7, 2011
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Latest / There was an error working with the wiki: Code[1] > Directory:Bedini SG / Directory:Gravity Motors > Directory:Milkovic Two-Stage Mechanical Oscillator > OS:Bedini-Powered Milkovic Two-Stage Oscillator - Nick Kovacevic has thought to combine two approaches. He uses a Bedini coil to pulse the pendulum of a Milkovic two-stage mechanical oscillator as a way to introduce torque to the Bedini set-up, which usually lacks torque. He's open to suggestions about how to harness a net energy gain. (PESWiki and BeforeItsNews February 7, 2011)
Jan. 21, 2011
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Leonardo da Vinci Gravity Machine (pdf) - Serbian academician Veljko Milkovic considers one of the greatest mystery of the science – Leonardo’s Gravity Machine: Old story is passed on from a generation to the generation that Leonardo’s gravity machine amazingly worked, but original model wasn’t saved, only drafts we can find on internet or in rare books... ( January 21, 2011)

Dec. 18, 2010
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Efficiency of Rotor with Eccentric Mass with Small or Greater Speeds (pdf) - Because idea of eccentric rotor was accepted by great number of researchers in last years, academician Veljko Milkovic is are proposing following supplement: to reinvestigate horizontal rotation in cases of greater speeds as well as usage of ceramic bearings… ( December 18, 2010)

Nov. 09, 2010

The Revision of Conservation of Energy Law or the Apocalips (pdf) - Academician Veljko Milkovic appeals in his open letter for considering new clean technologies in favour of protecting the planet Earth and our civilisation: Being a slave to the dogma that the state cannot be changed for better, is in favor of development old “dirty technologies”. Refusal of new ideas and slavery to arrogant science will not result in stagnation but in regression. ( November 09, 2010)

Oct. 10, 2010
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Directory:Gravity Motors / Directory:Milkovic Two-Stage Mechanical Oscillator >Angular Momentum, Parametric Oscillator and Over Unity (pdf) - The goal of this work is to present mathematical and experimental proof of getting energy surplus or over-unity energy out of gravitational field by using pendulum as parametric oscillator. In this work, the author aims to prove that the law of conservation of energy is not valid where the law of conservation of angular momentum is valid. ( October 10, 2010)
August 04, 2010
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Directory:Gravity Motors > Directory:Milkovic Two-Stage Mechanical Oscillator > Theory of Gravity Machines - Gravitational Field As a Fuel (pdf) - This work is a presentation of simple theory of using conservative gravitational field as a fuel. In order to extract energy from conservative field, gravity shield effect is necessary. The logic is used to explain the two-stage mechanical oscillator of Veljko Milkovic and areas of its improvement. ( August 04, 2010)
Aug. 3, 2010
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Latest: Directory:Emergency Preparedness / Directory:Human-Powered / Directory:Gravity Motors > Directory:Secondary Oscillations > Directory: Feltenberger Pendulum by Gravitational Energy Corporation - Gravitational Energy Corporation's Feltenberger Pendulum Pump, proven recently in Haiti, is manually operated. Coupled to a piston pump, it is capable of pumping and filtering 2,000 gallons of clean drinking water per hour. An electricity generator is being developed. (PESWiki Aug. 3, 2010)
July 19, 2010
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Directory:Gravity Motors > Directory:Secondary Oscillations > Directory:Milkovic Two-Stage Mechanical Oscillator > Directory:Milkovic Two-Stage Mechanical Oscillator > Milkovic pendulum self-loop attempt by Anandaadhar (video) - Replicator, Anandaadhar has given significant effort toward creating a self-looping Milkovic secondary oscillation system, using a flywheel and magnets along with his with a two-phase pendulum. No self-sustaining achieved with this set-up, but could that be due to system losses? (YouTube / Anandaadhar July 17, 2010)
June 26, 2010

The following related technology emerges:

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Latest / There was an error working with the wiki: Code[1] > OS: F. M. Chalkalis Gravity Wheel - Greek inventor, F. M. Chalkalis, after 28 years of development, says he is now giving away his design for a gravity motor that he says generates ten times more power than is required to maintain it or is that a math error? Several people look interested in replicating the design, which looks relatively simple, but won't be cheap. (PESWiki July 9, 2010)
June 11, 2010
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Directory:Gravity Motors > Directory:Secondary Oscillations > Directory:Milkovic Two-Stage Mechanical Oscillator > New Breakthrough in Over Unity Pendulum Theory (pdf) - Jovan Marjanovic and Veljko Milkovic are presenting the new theory which says that acting force against moving body will not only accelerate the mass of the body, but also its initial kinetic energy too. The product of initial velocity and additional velocity times the mass would be measurement of extra energy or over-unity energy. ( June 11, 2010)
Nov. 23, 2009
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Basic Principles of Over Unity Electro Machines (pdf) - In this work author analyzed several patented electromagnetic machines with over unity behavior and explained basic principles behind their work. Author found four basic principles for construction over unity electromagnetic machines and one for increasing energy of the river. ( November 23, 2009)

Oct. 29, 2009
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Raymond Head’s Over Unity Proof for Veljko Milkovic’s Two Stage Oscillator (pdf) - After two years of experiments, consultations and discussions it becomes clear that accomplished mechanical energy surplus cannot be denied anymore! The free mechanical energy from Texas (USA) is confirmed in the latest analysis of Raymond Head’s two-stage oscillator replica. ( October 29, 2009)

Oct. 01, 2009
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Energy Surplus Phenomenon (pdf) - Prof. Nebojsa Simin, a Serbian physicist, has addressed the scientific community and public with an open letter and call for official examination of Veljko Milkovic’s oscillating pendulum-lever system and "obviousness" of mechanical energy surplus showing in the work of this mechanical device. ( October 01, 2009)

July 10, 2009
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Superiority of Pendulum Drive - A Proof of Energy Excess (YouTube) - Veljko Milkovic demonstrates a simple experiment showing the change of potential energy to kinetic energy and proving the energy excess is possible with the pendulum drive. ( July 10, 2009)

May 18, 2009
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Output/Input Power Ratio 1.46 (pdf) - Ronald Pugh, a Canadian machinist, reports on the pendulum-lever system efficiency measurement he conducted that one more time confirms the super efficiency of Milkovic's Two-stage Mechanical Oscillator. ( May 12, 2009)

March 22, 2009
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Two-Stage Oscillator As a Parametric Oscillator (pdf) - Aleksandar Slavkovic proposes that Mr. Milkovic’s invention belongs in a new category of devices called “Double-(fulcrum)-Bounded Parametric Oscillators" and shows that Mr. Milkovic's two stage oscillator may be viewed as a damped parametric oscillator, and that pumping of energy from the driving, swinging pendulum is not a precedent in the world of physics, but rather, an expected effect due to a well-known phenomenon called parametric excitation, parametric resonance or parametric pumping. Consequently, a ready-set of modeling tools should be applicable to properly model the device. ( March 07, 2009)

March 08, 2009
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Mathematical Proof of Free Energy (pdf) - Jovan Marjanovic, the electrical engineer, presents simple mathematical proof of Free Energy: With simple formulas in electromagnetics it can be proven that Third Newton's law is not valid in all cases for electrical charges. Easy proof that electrical generator with high voltage achieved by high RPM have energy surplus in comparison with another generator with low voltage and high current. ( March 02, 2009)

Jan. 28, 2009
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Double Solenoid Pendulum (YouTube) - A Canadian engineer, Ron Pugh demonstrates his automatic double solenoid pendulum driving system for the Milkovic's two-stage oscillator using a quadrature shaft encoder to provide the logic to fire the main solenoid and the ratchet solenoid. ( January 28, 2009)

Dec. 18, 2008
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Mechanical Feedback Loop (pdf) - Jovan Marjanovic analytically describes his experimental work on Milkovic’s Pendulum-Lever System and shares his findings and problems in an attempt to close the loop giving possible solutions for the two-stage oscillator. ( December 18, 2008)

Nov. 17, 2008
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Recommendations for Measuring the Efficiency Quotient (pdf) - Jovan Marjanovic gives the recommendations for correct efficiency measurements and stresses some errors in input/output energy measurement methodologies. ( November 17, 2008)

Oct. 28, 2008
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Precise Energy Surplus Measurement (pdf) - Jovan Bebic demonstrates the new efficiency measurement of Milkovic’s two-stage oscillator in his new paper and reports that the output/input energy ratio is 2.284. ( October 28, 2008)

Oct. 10, 2008
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Keys of Understanding Gravity Machines of Veljko Milkovic (pdf) - Jovan Marjanovic explains Gravity machines and details for construction of two stage oscillator and common errors, theorem which must be satisfied by any gravity machine to be perpetuum mobile Inertial propulsion and errors in Newton’s laws. ( October 10, 2008)

Sept. 11, 2008
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Video: Pendulum-Lever System Different From Simple Machines Better Than Transmissions (35 min, Google Video) - In a new video presentation, Veljko Milkovic, presents great advantages of using pendulum-lever system and ultra efficiency of two-stage mechanical oscillator experimentally demonstrating how it is many times better and effective than the simple machines and transmission systems. ( September 11, 2008)

August 09, 2008
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Video: Obvious Energy Excess In Large Milkovic 2 Stage Oscillator Replication (7 min, YouTube) - Raymond L. Head of Dallas, Texas, demonstrates obvious energy excess testing large Milkovic two-stage mechanical oscillator and reports that Milkovic’s machine definitely putting out more energy than he is putting in - validating Veljko Milkovic’s claims. (YouTube Channel - Rhead100 August 29, 2008)

July 23, 2008
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Video: Cart with a pendulum - Vehicles with internal and inertial drive (7 min) - New video presentation of Serbian inventor, Veljko Milkovic, demonstrating his perennial research work on the idea of moving vehicle without indirect mechanism (transmission). Milkovic explains a new power and how the isolated powers can perform one-way moving of model using tensile forces of physical pendulum. There is also an attempt to improve and to confirm the law of action and reaction (The third Newton’s law), which hadn’t undergone any revision from its beginning. (, July 23, 2008)

July 16, 2008
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Modeling and Simulation of a Double Pendulum With Pad (pdf) - An independent mathematical analysis by Bojan Petkovic considers the Veljko Milkovic's two-stage mechanical oscillator in a form of double pendulum with a pad that presents a mechanical system which is not analyzed in the literature. (, July 16, 2008)

June 7, 2008
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Calculation of Energy Surplus of the Two-Stage Mechanical Oscillator in the experiment with manual dynamo lamps (pdf) - In one more analysis and measurement, Jovan Bebic considers the efficiency of Veljko Milkovic's two-stage mechanical oscillator in the famous experiment with the hand flashlights and reports that the output/input ratio is 2.8 times in his same replicated experiment. (June 7, 2008)

May 19, 2008
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On the Track of the Energy surplus of a Two-Stage Mechanical Oscillator by Veljko Milkovic - Ljubo Panic provides additional theoretical and mathematical support for why Veljko Mikovic's two-stage mechanical oscillator results in excess energy out, compared to what is put in, by better explanation of the influence of the centrifugal force during operation of the two-stage mechanical oscillator.

May 4, 2008
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Original scientific paper - Free energy of the oscillating pendulum-lever system - full paper (135 KB PDF) - Theoretical support for Two-Stage Mechanical Oscillator - Original scientific paper by professor and physicist, Nebojsa Simin, sets forth a theoretical and mathematical way to explain the energy excess in the two-stage oscillator set forth by Veljko Milkovic: "...The effect of creating the free energy results from the difference between the work of the orbital damping forces of the lever and the work of the radial damping force of the pendulum motion. This effect enables increase of the input energy. The coefficient of efficiency of the machine can be more than one." (May 4, 2008)

April 14, 2008
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Analysis of the influence of the centrifugal force during operation of the two-stage mechanical oscillator by Veljko Milkovi? (163 KB PDF) - Theoretical analysis by Jovan Bebi? "...It seems clear that the influence of the centrifugal force is the key to the explanation of the energy surplus of the two-stage oscillator by Veljko Milkovi?, the inventor." (April 14, 2008)

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Measuring the ratio of output and input energy of the two-stage mechanical oscillator by Veljko Milkovi? (254 KB PDF) - Measuring done by Jovan Bebi? resulting with the excess energy "...Therefore, ratio of energy at the output and energy at the input is 22.89..." (April 14, 2008)

March 2, 2007
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New video - Announcement of Veljko Milkovic for an academician and public presentation of the iventions - Announcement of Veljko Milkovic for an academician and full member of Academy of Inventors of Serbia (SAIN) and his speech that took place in the state-room of Chamber of Commerce of Vojvodina, on 02nd March 2007 in Novi Sad (Serbia). Contents: presentation of inventions (eco-house, two-stage mechanical oscillations), innovations, patents, books, replications of two-stage mechanical oscillator, delivering of diploma... Back up: Google video

Jan. 22, 2008
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Model Builder's Guide To Understanding Veljko Milkovic's Two-stage Mechanical Oscillator (pdf) - Dr. Peter Lindemann presents guidelines for model builders who wish to replicate a working model of Veljko Milkovic's "Two-stage Mechanical Oscillator". (Jan. 22, 2008)

Sept. 11, 2007
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Paper:Free Energy of the Oscillating Pendulum-Lever System - Publication-pending paper by professor and physicist, Nebojsa Simin, sets forth a theoretical and mathematical way to explain the energy excess in the two-stage oscillator set forth by Veljko Milkovic. (PESWiki Jan. 2, 2008)

May 5, 2007
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Directory:Milkovic Witness:Klemencic - Gorazd Klemencic and his wife visited Veljko Milkovic and describe their experience. "The excess of energy according to the input is very impressive."

April 24, 2007

Hans von Lieven analysis#2 Harnessing Secondary Oscillations

:This paper discusses secondary oscillations, the physics involved and suggested applications. It involves the use of counterrotating weights to energise the pendulum.

April 9, 2007

Hans von Lieven analysis - Just a few ideas to toss into the ring in relation to the "Milkovic Device" April 9, 2007 - In this article methods are discussed to provide efficient and accurate ways to energise the pendulum as well as a suitable way to convert reciprocal movement into rotation. The animation is a suggested arrangement for a mechanical feedback system that would turn the device into a perpetual motion machine. It should not be taken too seriously. :-)

March 4, 2007
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OS:Milkovic-Berrett Secondary Oscillator Generator - Brian Berrett of Lehi, Utah has built a two-wheel device that uses the two-stage mechanical oscillator principle set forth by Mikovic. The electrical output from the secondary wheel is far in excess of the electrical input required to maintain the primary pendulum oscillation on the first wheel.

Jan. 17, 2007

Italian association "A.S.S.E. - Associazione Studiosi Scienze Eterodosse" ( and publisher of "Altra Scienza" magazine translated Veljko Milkovi?'s book "Anti-gravity motor" into Italian language

and published it in ebook format

Jan. 13, 2007

Mr. Ron Pugh (Canada) and his associates made their own prototype of two-stage oscillator and pendulum automatics

Jan. 4, 2007

Professional Video released by Lara.

Dec. 24, 2006

Peter Lindemann, D.Sc. (USA) wrote a positive opinion on two-stage mechanical oscillator - 156 KB (PDF)

Nov. 14, 2006

New patent - Instruments for checking oscillation with plate spring, pendulums with weights and wings - MP-28/05

Dec. 12, 2006

Milkovi?'s two-stage mechanical oscillator is listed on Congress:Top 100 Technologies -- RD at

Nov. 30, 2006 - the international free energy research forum started the discussion and research on two-stage oscillator

Nov. 3, 2006

New patent - A machine for the production of energy from gravity potential with instruments for measuring efficiency - YU 49463 B - P-087/02

Sept. 21, 2006

Company Accord Case Ltd. London (UK) and Mr. Robert Schenk donated 500 € for the work and research of Veljko Milkovi?

See also

Directory:Milkovic Two-Stage Mechanical Oscillator

Directory:Secondary Oscillations

Directory:Pendulum Patents


Directory:Gravity Motors

- Directory







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