In 1685, Sir Isaac Newton (1642-1728) announced his discovery of UNIVERSAL GRAVITATIONAL FORCE by publication of book titled “Philosophe Naturalis Principa, Mathematica”. This is Universal force of attraction.

In 1980, I, Navinchandra K. Shah in association with my son (PANKAJ) and daughter-in-law (PADMA) discovered UNIVERSAL REPULSION FORCE and UNIVERSAL RETRACTION FORCE. The discovery announced worldwide from Hubli (India) by Press on 6th Feb. 1980 and appeared on 7th & 9th Feb. 1980 in all leading National Press as title news.

After discovery of two universal forces, established a new section of science titled “STREPULSION-PHYSICS (STRP)”. According to STRP and ULTIMATE REALITY OF THE UNIVERSE (URU) intensities of three Universal forces are as following

1) FORCE OF ATTRACTION (Absolute):
i) INTENSITY OF THE FORCE OF ATTRACTION (A) IS PROPORTIONAL TO THE MASS (m) OF THE BODY AND INVERSELY PROPORTIONAL TO DISTANCE (d).
A  a  m/d

ii) INTENSITY OF THE MUTUAL FORCE OF ATTRACTION BETWEEN TWO ATTRACTING BODIES IS PROPORTIONAL TO THE PRODUCT OF THEIR MASSES AND INVERSELY PROPORTIONAL TO DISTANCE.
A  a  m x m/d

This ratio of intensity is a pure or absolute force of attraction/gravitation undisturbed by other forces.

2) FORCE OF REPULSION (Absolute):
i) INTENSITY OF FORCE OF REPULSION (R) IS PROPORTIONAL TO THE MASS (m) OF THE BODY AND INVERSELY PROPORTIONAL TO DISTANCE (d).
R  a  m/d
ii) INTENSITY OF MUTUAL FORCE OF REPULSION BETWEEN TWO REPELLING BODIES IS PROPORTIONAL TO THE PRODUCT OF THEIR MASSES AND INVERSELY PROPORTIONAL TO DISTANCE BETWEEN THEM.
R  a  m x m/d
This ratio of intensity is of pure or absolute force of Repulsion undisturbed by other forces.

3) FORCE OF RETRACTION:
By interaction of Repulsion and Attraction a new force is resulted which acts as third elementary force of the universe. This is force of RETRACTION.
i) Intensity of Retraction force (RTF) is proportional to products of MASSES of Attracting and Repelling bodies and inversely proportional to square-root of DISTANCES between them.

ii) In the solar system, the sun exert SOLAR REPULSION FORCE (SRF), planets exert force of Gravitational Attraction (PGF). Both are REVERSE forces acting against each other. So, this equation follows:


In calculation,
(1) Solar mass is constant for all planets. So it is not considered. (2) To take mass per unit that is DENSITY of planet.

ORBITAL REVOLUTION (OR) of planets is owing to Retraction force, which acts on planetary bodies in ratio proportional to their DENSITIES and inversely proportional to square-root of DISTANCE from the Sun. So, OV can be computed either by DENSITY or by DISTANCE.
(1) ORBITAL VELOCITY (OV) OF PLANET IS PROPORTIONAL TO DENSITY (D) OF PLANET.
OV  a  D

(2) ORBITAL VELOCITY (OV) OF PLANET IS INVERSELY PROPORTIONAL TO SQUARE-ROOT OF DISTANCE FROM THE SUN.

ALL PLANETS REVOLVE AROUND THE SUN IN VELOCITY EITHER PROPORTIONAL TO DENSITY &/OR INVERSELY PROPORTIONAL TO SQUARE-ROOT OF DISTANCE.