Momcilo Sotirovic, A famous Serbian Architect has an innovative idea of a new source of Alternative Energy. The journey started 12 years ago when he created the first version of the solution. According to him, new source of energy is GRAVITY.

PERP is a first small step but big for humanity in the future. We invite you to support us in this journey to make it together possible to transform GRAVITY to ENERGY.
The "PERP" project is on the border between the Perpettummobile and the modern laws of physics, which are maximally used in the realization of the PERP project.
.... Inventions are created when established forms of thinking and work are rejected...
.... Even physics, as a fundamental science of nature, cannot be immune to surprises…..
For the continued survival of life on earth, the only solution is the use of alternative energy!
The sun, wind, water currents, waves, etc. are partially used today as alternative energy.
I decided to work on alternative energy projects of the earth's gravitation - using the energy of the earth's thesis, which is inexhaustible, you just must take it.
The Perp project cannot be placed in the Perpettummobile group because PERPuses the energy of the earth's gravity, which can be used without limitation at any time and in any place on the earth's surface.
In addition to the well-known sources of renewable energy, I suggest the usage of ALTERNATIVE ENERGY OF GRAVITY.
It can be said that gravity is seemingly small, but if we know how to use it, it becomes an alternative energy for future generations.
Gravity is the source of inexhaustible energy that at any time and in every place of the earth can be used without limitation.
My vision is that "PERP“ electric panels can be available in a wide range of shapes - from miniature ones that can be used in automobiles or electric vehicles, to larger mega "PERP"
panels, which can even measure hundreds of meter in size.
In the further scientific-research thesis, the project "PERP" will learn many changes that will contribute to more efficient work of the machine and the more efficient use of the gravity’s energy.
I will try to briefly describe the “PERP” project, its main functional components, and how they work.
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1) CENTRAL SHAFT Ø300mm, 861.39mm
(Drawings 2,3)
The central shaft must be precisely manufactured from duralumin and fixed with two ball bearings onto the base.
The central shaft is made up of several segments/parts that are machined with 6 openings through which the axle housings and arms with flywheels and wheels pass.
The components of the central shaft are connected with 6 screws along their length into a solid unit.
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2) AXLE HOUSING 60x70x660mm
(Drawing 6)
The axle housings are made of iron.
They are fixed into the body of the central shaft using two side-mounted ball bearings, allowing them to tilt up and down by 13°, lifting and lowering the arms with flywheels during the operation of “PERP”.
The axle housings act as guides and transporters for the arms and flywheels.
They are also supports for the fixed fans, each with two specially profiled wheels between which the arm of the flywheel passes.
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3) FLYWHEEL ARMS – 6 PIECES
(Drawings 1,3&5)
The flywheel arms are made of iron (steel).
They pass through the axle housings, which are fixed to the central shaft body and go through two fans with built-in wheels.
At the ends of the flywheel arms (on the inclined part) are the flywheels, and each arm is fitted with wheels.
“PERP” always operates in pairs with a common flywheel, so the distance between the arms with flywheels is reduced from 60° to 30°, helping reduce energy loss during the passive part of the flywheel’s path (ascent).
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4) THREE-PIECE FLYWHEEL
(Drawings 7, 8, 9)
The three-piece flywheel is made of iron.
This type of flywheel is positioned in multiple positions and is rotationally free as required. Through its operation and shift of positions, it generates greater power – energy.
When the flywheel arm is at the top (highest point), the inclination begins and rotation starts simultaneously for three flywheels on their paths (double rotation).
The expanded part of the flywheel shaft rotates and sits on a ribbed rubber wheel (which is already in motion), driving the wheel (which is still in the air). The wheel with the flywheel, in descent, moves onto the rough surface path.
During the previous active stroke (descent), the arm’s speed increases (acceleration), and with the other side of the central shaft and housings, energy loss is minimized.
Thus, the flywheels with their arms gain greater acceleration and utilize more usable power.
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A steel ball is installed inside every flywheel, and by changing its position, it enhances the power of the “PERP” system.
When the flywheel enters the passive-negative zone (lifting zone), both the flywheel and the ball change their position.
The fundamental energy of PERP 7 is the gravitational energy of the earth – the earth's weight.
PERP 7 uses gravitational energy as its fundamental energy and also uses the known laws of physics.
The basic initial and constant energy is gravitational, which this model will be able to increase with its work, and this excess energy would be used to generate electricity.
This model works in pairs on the same drive axle.
It is also possible to place 4, 6 etc. units on one common shaft to reduce the angles of the flywheel arms from 60° to 30°, 15° ...
THE PRINCIPLE OF OPERATION OF THE EXPERIMENTAL MODEL PERP 7
The "I" arms stand still.
The two points of the arms are on the plate (in the lower part of the picture).
Rotary flywheels are stationary at point "a" with leaning, widened parts of the shaft, on the wheels.
The other end of the "I" arms are in the upper part (free tracks) and the rotary flywheels stand still at point "b"
With a small movement, the movement begins:
The wheels begin to move along the path.
The rotary flywheels rotate, moving from point "a" to point "b" (the three movable flywheels begin to rotate slowly, reducing the length of the flywheel arms).
The other upper arms "I" move at the same time, and the rotating flywheels rotate from point "b" to point "a" (flywheels ejected from the horizontal), and with their extended parts of the shaft, rotating, they get on the wheels and drive them.
With this movement, the free part of the flywheel arms gain in length, and at the same time the other lower part is shortened.
Power and speed slowly increase from point "5" to point "2".
The wheels in motion from point "1" roll, which on a rough track move the rotating flywheels even faster over the extended parts of the flywheel shaft.
At point "2" , when part of the wheel arms comes out of the horizontal, the extended parts of the flywheel shaft are separated from the wheels and approaches closer to the central axle of the Perp, without stopping its rotational rotation until point "5".
Also, the wheels continue to rotate to point "5", where they rejoin and continue their acceleration moving towards point "2"...
The movement of flywheels, wheels and flywheel arms from point "2" to point "5" is the passive part.
This part of the journey is complemented by a constant and accelerated rotation, flywheels and wheels.
Also, the rotation of these parts of the arms from "2" to "5" , if necessary, supported by a part of the energy of the other arms located in the WORKING ZONE from "5" to "2".
In the operation of one PERP participates 6 spokes, 12 wheels and 6 rotary flywheels with 3 units each.