Two-Stage Oscillator

Two-Stage Mechanical Oscillations Research Lab
Bulevar cara Lazara 56
21000 Novi Sad

+381 21 6366 487
+381 64 153 20 72  ( *Contact for all questions, business proposals, cooperation suggestions and calls from abroad )


A simple mechanical system that produces 9:1 over-unity and antigravity

( The following information is adapted from V. Milkovic's website: )


Veljko Milkovic was born in 1949 in Subotica (Serbia), and since 1952 he has been living in Novi Sad (Serbia), where he finished secondary school and studied History. Apart from being interested in past events, he is also a researcher, an inventor, an innovator and a writer. Furthermore, he works on futuristic projects. So far he has got around 110 inventions and has designed 36 approved patents, some of which have been in use for years. Moreover, he has received many domestic and international awards for his work spanning over many decades.

He invented a self-heating eco-house and a number of ecological innovations, which also have been in use for a long time. According to his drawings, many such eco-houses have been built in Novi Sad, Sombor, Zajecar, Ljig (Serbia)... He has taken part in about 30 scientific gatherings in the field of energetics and ecology as well as many projects concerning scientific research.

He is the president of the Department for ecological innovations and the organiser of the Exhibition of ecological innovations with VRELO Society from Novi Sad. He is also a member of the Association for the popularisation of science - Novi Sad.

Among various domestic and international awards, he has received November charter of the city of Novi Sad in 2002 for the remarkable contribution in the field of ecology and energetic as well as in 2002 a gold medal of Novi Sad fair for the invention hand water pump with pendulum.

He is very familiar with Petrovaradin fortress (city of Novi Sad, Serbia); he has been exploring it since 1960. In 1965 he managed to decipher orientation marks at the crossroads and establish the logic of subterranean labyrinth with "^", "Y" and "T" crossroads. This approach helps him to examine the 20km deep undergrounds of the fortress in a faster and safer manner.

His engineering and ecological projects inspired by Petrovaradin fortress are in practice: "Selfheating ecological house", "Mushroom garden and greenhouse with reflecting surfaces" (mushroom gardens for growing bukovace near Cenej and Petrovaradin, Serbia, were built), Project "Forests for food production" (in use on several locations in the province of Vojvodina, Serbia and Montenegro) and "Autonomous battery charger".

In 1975, librarian Srenko Drk hired him as a guide for less known parts of the fortress especially subterranean military galleries.

Novi Sad museum awarded him with the letter of thanks for the "ardent contribution in research of the Petrovaradin fortress".

In the late 70's, as a member of scientific and technical editorial board of the Cultural Center in Novi Sad, he organized and lectured at panels about Petrovaradin fortress. Some of the participants were an academician and a professor Bogdan Brukner and a professor Milan Vranic.

An idea of a modern sod house as a new way of living gave him élan to continue with researching subterranean galleries.

In 1983, Veljko Milkovic and Mr. Srenko Drk founded "The club of friends of Petrovaradin fortress" within "Vladimir Nazor" library in Petrovaradin (Serbia).

In 1997 he announced the book entitled "Mysteries of Petrovaradin fortress", which was published as a feuilleton, a script and a book. That was the first time that the gap in the literature about Petrovaradin fortress and its underground has been filled. It is interesting that many journalists and authors like Mr. Živko Markovic, a historian, claimed that subterranean military galleries represent the largest attraction in Petrovaradin.

In his numerous lectures and during short excursions he talked about dangers, but also about great tourist potential of Petrovaradin, Fruška Gora, Srem (Serbia) and the central part of the (river) Danube-basin.

During public appearances in previous years, Veljko Milkovic announced major archaeological discoveries from Palaeolithic age at the location of Petrovaradin fortress and in the central Danube basin. Experienced archaeologists stated that "it is beyond dreams" and that it was "absolutely unexpected"...

But it happened and it was confirmed by the latest archaeological discoveries from Palaeolithic age. In his numerous public appearances, Milkovic claimed that the central Danube basin is a cradle of prehistoric period, which was confirmed by the recent discoveries by European scientists. He is also in possession of a unique and unusual archaeological collection. He also gathered numerous minerals and fossils, from the Danube-basin, as well as remains of previous civilisations.

In his research study he worked hard on gravitation phenomenon and also on the improvement of anti-gravitational experiments and, connected to that, anti-gravitational operating systems.

In the last few years he has been working in the field of single and double mechanical oscillations, which represent a new source of widely, used energy, based on which he has 22 approved patents. His present aim is to explore and use practically the potentials of double oscillations and, in connection to that, a new source of energy based on inertial forces and gravitational potential.

Among other things in his experiments, he managed to get 12 times more output energy than input energy. In last 10 years, no one argumentatively disputed research and measurings carried out by Milkovic. Through such achievements, Veljko Milkovic laid the path for new challenges in physics in the 21st century, which could be the forerunner of the new great scientific revolution.

Milkovic is in possession of numerous prototypes and models (photo & video), as well as ideas for various machines and devices. Over the years, Milkovic received many positive comments and opinions relating to his research from domestic and foreign physicists, professors, academicians, engineers, researchers etc. It is more and more definite that Milkovic's inventions can be used for production of numerous practical devices, thus creating a range of new products which could help in improvement of overall economical situation and better the situation in society.

So far he has published the following books:

"Solarne zemunice - dom budunosti" ("Solar sod houses - the house of the future"), (1983),
"Ekološke kue" ("Ecological houses"), (1991 - printed in four unedited editions),
"Šume za proizvodnju hrane - zamena za njive" ("Forests for food production"), 1992 ( translated into Esperanto the same year),
"Ka antigravitaciji - kompaktna vozila" ("Towards anti-gravitation compact vehicles"), (1994),
"Antigravitacioni motor" ("Anti-gravity motor"), (1996 - with translation into English),
"Perpetuum mobile" ("Perpetuum mobile"), (2001),
"Petrovaradin kroz legendu i stvarnost" ("Petrovaradin through legend and reality"), (2001),
"Petrovaradin i Srem - misterija prošlostit" ("Petrovaradin and Srem - mystery of the past"), (2003),
"Svet misterija - novi pogledi" ("The world of mysteries new views"), (2004),
"Petrovaradinska tvrava - podzemlje i nadzemlje" ("Petrovaradin fortress over and underground"), (2005) and
"Novi turistiki potencijali" ("New tourist potentials"), (2006).

Milkovic also published noticeable feuilletons and notes:

"Niskoenergetski život" ("Low-energy life"), 1996.
"Energetski potencijal re?nog zaliva" ("Energetic potential of the river bay") 1996.
"Prethodna civilizacija" ("Previous civilisation"), 1999.
"Misterije Petrovaradinske tvrave" ("Mysteries of Petrovaradin fortress"), 1999.
"Petrovaradinska tvrava izme?u legende i stvarnosti" ("Petrovaradin fortress between legend and reality"), 1999.
"Nestale civilizacije" ("Missing civilisations"), 2000.

His book have been accepted both in domestic and foreign prestigious libraries, such as the Library of Congress, Washington DC and his publications can be found in the British Library in London, Moscow Library and Library of Alexandria. His publication have also been quoted in many Internet encyclopaedias and other sources.

He also found the solution how to lessen the problem of the "endangered inventor" and needs to make his secret public. That is exactly what Veljko Milkovi? is doing by publishing his books and publications.



Veljko Milkovic

Bulevar Cara Lazara 56
21000 Novi Sad
+381 21 6366 487
+381 64 153 20 72  ( *Contact for all questions, business proposals, cooperation suggestions and calls from abroad )

e-mail :

Web :

( Patent - YU 49002 B )



Picture 1 --- Public presentation of the hand water pump with a pendulum during the Agricultural Fair in Novi Sad (Serbia), 2003. The invention won a gold medal during the 2002 fair.

New and technically original idea - hand water pump with a pendulum - provides alleviation of work, because it is enough to move the pendulum occasionally with a little finger to pump the water, instead of large swings. Using the minimum of human strength in comparison to present classic hand water pumps enables efficient application in irrigation of smaller lots, for water-wells and extinguishing fires even by old people and children, which was proved by a large number of interested future consumers during the presentations.

Hand water pump with a pendulum is a realisation of a new, original, and even unbelievable, by very simple solution for pumping water. Work is alleviated because easier, long-lasting and effortless use of the hand water pump has been enabled. Input energy for starting the process of pumping, in form of occasional pushing of the pendulum, is much less than with typical hand pumps.

Picture 2 ---Hand water pump with a pendulum for pumping water out from wells or reservoirs consists of a cylinder (1) with a piston (2), lever system (3), a seesaw (4), a pendulum (5), a reservoir (6) and output water pipe (7).

To get the water running out of the pump, the pendulum needs to be out of balance. After that, based on gravitational potential, the piston starts oscillating and the continuous stream of water is coming out of the output pipe. The pendulum should be occasionally pushed, to maintain the amplitude i.e. the stream of water.

The pump works well with all sizes of the pendulum, but mainly with the amplitude of 90°.

The advantage of this invention compared to present hand pump solutions are: less force to start the pump, less water consumption, both arms can be used to fetch the water.

The invention is applicable on other devices that use lever mechanisms, such as a hand press etc.

Picture 3 --- Side view of the pump and the position of the piston, lever and the pendulum during operation of the pump.

It is possible to pump out a 1000 litres of water per hour, without any fatigue and continue with the pumping. Both arms are free for fetching water, and both elderly and children can use it, since maintaining the oscillation of the pendulum does not request any special training or dexterity.

Whereas typical hand pumps require significant effort and an average person can use the pump continuously only for several minutes, the hand water pump needs the minimum of the effort, because it is only necessary to swing the pendulum and maintain the oscillation for several hours, without any fatigue.

All details on the hand water pump with a pendulum and the information can be provided by the author, Veljko Milkovic, who is willing for any form of cooperation with all potential strategic partners and customers for production and application. So far, there was a lot of interest for the application of the hand water pump with a pendulum both in domestic and foreign markets, as well as for further development of the product.

Experiments: 12:1 Over-Unity from 2-Stage Oscillators

During the last few years, Veljko Milkovic did several measurings, which showed the energetic excess, 12 times larger than the input. That means that two-stage oscillations ( ) provide around 12 times more than the input.

Measurings were various. Regarding the camshaft mechanism and forces made with piston mechanisms, etc.

Of course, mistakes are possible, whether smaller or bigger. This is not strange in physics. It is also possible to improve devices. The main thing is to determine the correct frequencies as well as relations.

Major improvements are possible, which would compensate possible mistakes during the measuring.

You can also see the description of the research of two-stage mechanical oscillations, as well the prototypes and models with which these measurements were conducted:

Measurements using an oscilloscope have been performed recently. Dynamo flashlights have also been used. One handheld dynamo flashlight was used to push a pendulum in peak position to maintain the oscillation of the pendulum and the other dynamo flashlight was positioned under the lever on the output part of the oscillator.

Measuring was performed and voltage values were acquired for the dynamo flashlight used for maintaining the oscillation of the pendulum and the one pressed by the lever during oscillations:

Dynamo flashight analysis ( 200 KB; PDF --- in English ):

Measurement with an oscilloscope ( 514 KB; PDF):

An official measurement was also conducted in cooperation with the Institute for energetics, electronics and telecommunications in Novi Sad (University of Novi Sad, Serbia). The same dynamo flashlight were also used (one was used to push the pendulum in peak position to maintain the oscillation of the pendulum and the other one was positioned above the lever on the output part of the oscillator) and the following values were acquired: ...



A simple mechanism (Figure 1.) with new mechanical effects, representing the source of energy. The machine has only two main parts: a massive lever and a pendulum. The interaction of the two-stage lever multiplies input energy convenient for useful work (mechanical hammer, press, pump, electric generator...).

Figure 1. Mechanical Hammer with a Pendulum
1 - anvil, 2 - massive lever, 3 - lever axel, 4 - physical pendulum

The best results were achieved with the lever axel and pendulum at the same height, and the base of the massive lever above the centre of mass, as shown in Figure 1.


Energy is created due to the difference in existing devices. Consumers of energy use the difference in the potential between the plus and the minus (direct current) and zero and the phase (alternate current). All heat and thermal motors accomplish useful work due to the higher temperature and pressure. Mills and power plants use different levels of water...

However, difference in the potential of two-stage oscillator, "unusual machine" has not been considered so far.

Figure 2. Difference of the Potential during Oscillation of the Physical Pendulum
1 - weightless state in the upper position
2 - culmination of force during the fall in the lower position

Since there is a difference in potential (Figure 2.) between the weightless state (1) and culmination of force (2) during oscillation of the pendulum, the same is true for centrifugal force, which is zero in upper position, and culminates in the lower position at maximum speed. Physical pendulum is used as a single-stage oscillator in the system with a lever.

After many years of trials, consultations and public appearances, it could be said that this occurrence is being researched and investigated all over the world (author is in possession of evidence). Simplicity enables construction of houses by owners themselves.

Efficiency of the model can be increased by mass, since the relationship between the volume of the lever weight and its surface increases the mass.

Figure 3. Experimental Models

Extreme technical solutions can be tourist attractions even as prototypes.

Previous examples emphasize the importance of synchronized frequency with every model. Oscillations of the physical pendulum have to be maintained with certain speed, otherwise input energy is wasted.

Mechanical hammer (photo & video) and a pump with a pendulum (photo & video) work more efficiently with a shorter pendulum, but with air movement (educational toy - photo & video), longer pendulum works better.

According to the theory of oscillation, oscillatory movements in nature are the most frequent ones, and can be difficult to analyze.


The easiest way is to proclaim something as impossible and refer to laws. However, are all laws of Physics perfect and eternal?

Luckily, and most probably, they are not. Therefore, exceptions of extremely efficient machines are possible (Fig. 1-3.).

In the same way, the speed of light can be deemed unreachable, according to Einstein's formula E=mc2, because the mass would be infinite. However, the mass does not change with speed, and the kinetic energy increases with the square speed. Therefore, the speed of light can be reached by future space crafts, if these ideas are considered.

PHOTO & VIDEO PRESENTATION of two-stage mechanical oscillations research (prototypes and models, the new mechanical effects, experiments...):


Although the basic model, which Veljko Milkovic called "The mechanical hammer with a physical pendulum", showed in the first experiments that the output energy is larger than the input energy, Milkovic concentrated on the practical use of the model. This can be seen by the order of the patent requests. Later, it turned out that this model is also a perpetuum mobile, when usage of input energy is in question. However, the model is energetically open both at the entry and the exit part, so the exact measurement of efficiency would be complicated. The matter of the exact measurment was postponed, but the noticed fact was that the model represents a new type of a simple machine, and that is very interesting and useful, even without multiplying input energy.

The next part will cover the characteristics of the "basic model" which make it a simple machine, putting aside the matter of the efficiency percentage.

Mechanical hammer with a physical pendulum is an original device - a machine which is turning the oscillations of the physical pendulum, hanged on an arm of a two-armed lever, into the oscillations of the weight on the arm of the same lever. The axis of rotation, the axle of the physical pendulum is parallel to the axis of rotation, the axle of the lever. The axle bed of the lever is connected to the surface with girders. The axle of the physical pendulum is oscillating up and down, when the pendulum is out of balance. Thus, the weight on the other arm of the lever is oscillating as well. The arm on which the pendulum is positioned is lifted with every movement of the pendulum away from the balance, because the weight of the pendulum weight is decreasing, and the same lever arm is lowering when the pendulum is closer to the balance position and that happens in succession. The period of oscillation of the lever and the weight on it is twice shorter than the period of oscillation of the physical pendulum and the weight on it.

In Picture 1, the triangle represents the support for the two-armed lever. The small circles are the two axis. The lever rotates on one and the physical pendulum on the other. On the right arm of the lever is an angle on which the physical pendulum is oscillating, and on the left arm is the weight which oscillates together with the lever. As soon as the physical pendulum is out of balance and begins to oscillate, the lever starts to oscillate as well..


Forced oscillation of the weight on the lever can be of an impact type when the weight, at the end of every oscillation, hits the surface or an object on the surface like a hammer. At that moment, the force of the impact is greater than the force maintaining the oscillation of the pendulum, which still does not say anything about the balance of energy since the effect of these two forces is not simultaneous. It would be a completely different story if we were talking about strength and not force, but we would need a different approach in that case.


Veljko Milkovic conducted a series of experiments on the basic model - mechanical hammer with a physical pendulum. All the experiments led to the conclusion that the input energy is smaller than the output energy. Since the law of energy sustainability could not help here, he did not spend too much time to explain the occurrence in a theoretical way.

One of the possible explanations was the effect of the forces involved in the work of the oscillators. Forces are more specific and simple physical entities than energy. However, there were many different forces present during the experiments, so it was hard to compare them.

Most of the experts and scientists familiar with experiments conducted by Milkovic did not go into more detailed analysis, with an exception of professor Bratislav Toši?. Unfortunately, his extensive mathematical analysis did not provide a clear result concerning the energy balance.

Experts usually followed their instinct. Some were "in favour", some were "against" perpetuum mobile. Among the first group, after some hesitation, was Nebojša Simin. Sceptical at the beginning, as many other physicists involved in this research, his resistance was defeated with a simple gesture. He put his hand on the lever which was oscillating. The pendulum continued to sway as if nothing happened, while the energy was transferred from the lever to his arm. The lever was working tirelessly, without a decrease in the oscillatory energy of the pendulum. ?imin did not need a more convincing proof than this to convince him that this is the perpetuum mobile. It practically makes no difference whether the lever is doing something or not. That work does not reflect the oscillation of the pendulum, and the pendulum in return, as it oscillates, makes the lever to oscillate too. Simin was positive that the efficiency percentage of the lever with a physical pendulum larger than the one. At the same time, it meant that the law on energy sustainability can not be applied for this model, which is only a step away from the autonomous perpetuum mobile. For the model to be autonomous, it was necessary to come up with an idea how to return a part of the energy from the lever to the pendulum, so that it would not stop because of friction and air resistance. Milkovi? solved this problem as well through his patents.

Unlike Milkovic and his associates, Simin did not like the idea of giving the main role to the gravitational potential. If the friction is neglected, pendulum work force is equal to zero. On the other hand, no one doubted the meaning of the centrifugal force of the pendulum. It was clear from the beginning that they should follow that lead.

A lot of time was spent on the basic model and the matter of maintaining the oscillation of the pendulum, having in mind the friction and air resistance. Milkovic solved that problem with electromagnetic bumpers in the patent "The piston water pump with the pendulum and electromagnets" ,which he handed in for registration on 02/22/01. In that way, he completed his previous model: "Electric generator with the pendulum and magnetic bumpers" , from 06/14/00. Observed individually, neither of these two models are autonomous, but together, they are. The combination of these two models is the first model of perpetuum mobile.

Milkovic was also troubled with the problem of the relatively slow oscillation of the pendulum, which produced low-frequency current. He did not solve this problem fully so far. An attempt with the model: "The electric generator with an elastic pendulum handle" ,which offers faster oscillations, does not solve the problem, because that is a single-stage oscillator which has an efficiency coefficient lower than one. Among the first nine patents, this is the only one which has nothing in common with perpetuum mobile.

"Surplus" or "excess" energy was usually attributed to the gravitational potential. For sceptics, that was the "proof" that this could not be perpetuum mobile, because the gravitational field during oscillation of the pendulum is zero. In their opinion, that was enough to conclude that there could not be "excess" energy. The only thing everyone agreed on was the efficiency of the device.

Qualms about the efficiency coefficient could not be satisfied without a deeper analysis. The matter was the participation of the centrifugal force of the physical pendulum in the lever oscillations, as well as energetic consequences of that participation. That force does not influence oscillation of the pendulum, but is directly responsible for the oscillation of the lever. It is clear that the axis of the pendulum, if we neglect the rotation, does not have kinetic energy in the pendulum system, but it does in the lever system. However, potential energy of that point changes in the lever system. It was not clear whether the change of the potential energy, despite it is zero during one oscillation, has any effect on the phenomenon as a whole. As far as the work is concerned, the pendulum operates against friction and air resistance, and the lever operates, for example, through the hammer hitting the surface, or by producing the alternative current by means of induction. It was not clear which work force was bigger, the pendulum or the lever. The response could not be a direct one, because precise measuring was needed, but it could not have been conducted on the original model. This was also the case with the models Milkovic constructed in the meantime. One of them is the fan, which is a two-stage oscillator (Picture 2.). The fan is swaying for unusually long time after the pendulum has only once been put out of balance. But, the theoretical explanation in this case is even more complicated that the one of the original model.


Let us get back to the basic model. Some things are obvious just when you look at the movements of the two-stage oscillator. There is a significant difference between the two conditioned oscillators. The lever is forced to oscillate, unlike the pendulum. The opposite is not possible because of the influence of gravity on the weight of the pendulum. If the pendulum is connected to an external energy consumer, the pendulum soon stops with oscillations, as well as the lever. However, if the lever is connected to an external energy consumer, the pendulum continues with oscillations. If the external consumer does not take all the energy from the lever, it will continue to oscillate with a smaller amplitude. If we suppose that the positive work force of the lever, and it's useful work force are greater than the work of the pendulum while it is overcoming friction and air resistance, we get "excess" energy. That "excess" can occur only due to the centrifugal force of the pendulum. However, is that really "excess" energy or does it just seems so?


By definition, energy is a capability of an object to perform work. Therefore, energy does not cause any consequences on anything, but it could and could not have consequences in regards of another object starting to move.

Even a basic model made by Milkovic established that a change of the lever energy does not change the pendulum energy. Mechanical energy of the lever, in the pendulum system, is equal to zero, so that the lever is not in position to affect the pendulum. In the surface system, the lever energy is different than zero, and it can perform work if something is on its way. The lever can perform work be hitting the surface, but it would still not affect the pendulum. What ever happens to the lever, the pendulum energy will not change.

Energy of the lever is at the disposal of an external energy consumer, which does not affect the energy of the pendulum, whether the lever is doing anything or not. If the external consumer takes over a part of this energy, the oscillating amplitude of the lever will decrease. Since the lever is the one oscillating forcibly and not the pendulum, it continuos with oscillations even when partly dampened. Oscillation of the pendulum is uninterrupted even when the lever oscillation is completely dampened. As soon as the lever stops being a working body and stops providing energy to the external consumer, it starts oscillating again, with a same amplitude as before. This is a clear and unambiguous sign of "excess" energy.

Mechanical energy of the lever occurs without additional input of energy from the outside, due to the way in which the pendulum is moving. Work force of the lever does not mean that a pendulum must lose it's part of the energy. Pendulum just needs to be moving. On the other hand, the pendulum is not moving because it is getting the energy from somewhere outside, but because of inertia. In other words, the lever is capable to denounce a part of its energy for the external consumer, even though that process does not include any working body outside of the device. This is all under condition that the pendulum is oscillating without obstructions. It is understood that the pandulum has been previously thrown out of balance. After a short time, this energy in the total operational, energetical or power balance can be neglected.

Friction and air resistance were the stumbling block, in both theoretical and practical sense, especially on the pendulum. Milkovi? solved this problem in an indirect way, with the combination of two models.

In this way, interpretation of the device does not fall under the usual theory of energy sustainability. Classic mechanics either did not foresee objects such as multi-stage oscillators or it overlooked certain characteristics of these object. Or, maybe both.


Whether we like it or not, gravity exists and we can not influence it, since there is still no gravity isolator. However, physical pendulum is in weightless state in its upper position during oscillations.

This works as a substitute for a gravity isolator, and the efficiency proved to be extremely high at two-stage oscillators shown above.

Experiments also confirmed supplemented formula for kinetic energy, which explains the surplus of energy.

Speeds are added together, originating from the impulse i.e. energy invested in maintaining the pendulum in oscillation, which happens in the upper position.

Additional acceleration of the pendulum is due to gravity. If the above mentioned formula is applied for calculation, the surplus of energy is clear, and it originates from gravitational potential.

In addition to results in earthly conditions, space probes had excellent results, so it is useful to mention that kinetic energy can be increased with the help of gravity.


Videos of two-stage mechanical oscillations research with review of new mechanical effects, experiments, prototypes, models, measurements... and introduction of new source of energy on the basis of inertial forces and gravity:

1. Full presentation ( 36 minutes - 44 MB; English subtitles ) ---


2. Device for testing single-stage and two-stage oscillations ( 06:34 minutes - 7.28 MB ) ---

3. Fast model with an eccentric rotor ( 01:38 minutes - 1.82 MB ) ---

4. Mechanical hammer with a pendulum ( 04:46 minutes - 5.29 MB ) ---

5. Laboratory pump with a pendulum ( 04:20 minutes - 4.82 MB ) ---

6. The universal two-stage oscillator as mechanical hammer (the weight of hammer is approximately 25 kg) ( 0:48 sec. - 3MB ) ---

7. The universal two-stage oscillator as electric generator (nine small generators --- dynamo flashlights as output work) ( 0:46 sec. - 6.5 MB ) ---

Opinion of Prof. Dr. Velimir Abramovic

Subject: Double Oscillator Invented by Veljko Milkovic

Time Institute --- Foundation for the Science of Time
Dordtselaan 137a
3081 BL Rotterdam

Belgrade (20 June 2002)

I happen to have visited inventor Veljko Milkovic in Novi Sad and gained insight into his original and useful work on double mechanical oscillator.

It is a lever with a pendulum at one end, a mechanical machine using a principle that no mechanic before Milkovic, including Archimedes, thought of.

In addition to obvious practical application, with the system output several times larger than the input force, double oscillator has important theoretical characteristics:

(1) When the pendulum is out of balance it becomes a system without inertia, which uses gravity to oscillate and turns it into rotation through the lever.

(2) Obstructions on the lever do not influence the pendulum, which means that the pendulum is independent from the lever, but the opposite is not the case. In other words, gravity is the reason for mechanics. It is a reversible gravitational-mechanical process which turns gravity into mechanical work and vice versa, an obvious process in nature. The sum of gravity forces is always larger than the sum of losses: which is the precondition for constant movement of heavenly bodies.

(3) The double oscillator is also the best mechanical analogy of the alternating current, even better than Tesla’s analogy.

A model has been set up in Mr Milkovic’s apartment: a water pump that needs only a slight pressure with one finger to put the pendulum out of balance and add impulses with a minor force. The output is enormous compared to the input force of pumping. Practical advantages are obvious.

Anti-Gravity Motor

It is very strange, but it turned out that the same invention fulfils two ancient human dreams. One about a machine which works continuously, and the other about the flying device which moves according to the wish of the person on the device. Here, of course we do not mean aeroplanes and rockets, but a flying machine that does not use any kind of fuel. A vehicle with such a motor could move on the ground, in the air or anywhere in space, without fuel.

Anti-gravitational motor is machine that confronts so-called "laws of nature". This idea could not have been believed in, without being pronounced naive or demented. Anti-gravitational motor belong to the field of science-fiction, although contemporary physics knows the case where a law of action and reaction does not apply in one inertial system. This is the magnetic force which is emanated by two particles as they move.

Picture 1 --- A cart with one pendulum askew

Inconsistency is frequent in physics. Besides, mechanics is somehow outdated, and left to technicians and mathematicians. These three disciplines do not have the same basis, and they are more inconsistent than it is usually recognised. Physics explores occurrences and events in nature, independent of their meaning to humans, whilst technique deals with the possibility to join these occurrences in one whole. Mathematics precisely defines conditions under which these occurrences happen, but does not, and can not, take into account the meaning of these occurrences, which is an integral part of physics. Mathematics also can not express practical purpose of an occurrence, which techniques can. Therefore, these three disciplines, in spite of having things in common, can not merge into one another. Physics basically abandoned the field of mechanics, as if it has nothing more to say.

Classical physics is, in large part, Newton's physics, and he was more of a mathematician than a physician. Maybe that is one of the reasons why there is a span of several centuries between the discoveries of Galilei and perpetuum mobile, and even an anti-gravitational motor. Physics is relying too much on quantification of physical constants that are part of a certain occurrence, while, at the same time, it ouches the qualification of these same occurrences to the side.

As far as technique is concerned, it prospered immensely, especially in the 20th century. On the other side, it is well known that new discoveries are usually technically very simple. For example, from a technical point of view, Milkovi?'s cart shown in Picture 2. looks more like a toy than an attempt to make an anti-gravitational motor. When you look at it from the physics point of view, it looks completely different.

Picture 2 --- Small cart with a pendulum askew

This cart contains everything an anti-gravitational motor needs. As with other models made by Milkovi?, there is an inertial force pushing them in one direction. The main part of the model is a physical pendulum which is askew and is moved by gravity. Gravitational field should be replaced with a magnetic field, to enhance the efficiency of the model. Milkovi? made a model with two askew pendulums, which oscillate with phases positioned towards one another in an angle of 180°.

Picture 3 --- A cart with two pendulums askew

Perpetuum mobile and an anti-gravitational motor have been hiding in the shadows of scientific thought for along time. That shadow certainly contains many similar "scraps", awaiting future exploration.

Cart with a pendulum - Vehicles with internal and inertial drive

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.

 From the contents: Tensile forces of physical pendulum, Motion without usual reflection, An addition to the Law of action and reaction (The third Newton?s law), Cart with a pendulum, Truck with horizontal physical pendulum...

This video is an excerpt from the TV show ?Svet ideja?, Radio Television of Novi Sad (Serbia) recorded in 1996.

 YouTube video in English, 7 min.:

More info:

Additional information can be found also in the book by Veljko Milkovic "Anti-gravity motor":



Prof. Bratislav Tosic

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Complete Mathematical Analysis of Biphase Oscillator (9 pages):

"...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."

"...Therefore, ratio of energy at the output and energy at the input is 22.89..."


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.

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