Discovered by : Sir Isaac Newton
Discovered in year : 1666
Gravity is an invisible pulling force between two objects. These two objects can be anything from a grain of rice to a planet in the solar system. Gravity is everywhere. It is between everything and it is everywhere. It is on Earth, moons, stars, and even in space. Nothing can escape it. Gravity was discovered 3 centuries ago by a mathematician and physicist named Sir Isaac Newton. He discovered that there is a specific force,which we call gravity, that is required to change the speed or direction of something that is moving.
Isaac Newton was born on 4 January 1643. He was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian and one of the most influential men in human history. When he was twenty- four-years old, he began to conceive his greatest idea - The Concept of Gravity. One day, in the year 1666, Newton, then retired to the country, saw apple fall from the tree. Upon seeing this he went into a profound meditation upon the cause and if this process is prolonged, it would pass very nearly through the center of the earth. After researching this hypothesis he wrote the law of gravity. This law is a mathematical explanation for the way that things attract based on experiments and observations. However it took him two decades to develop the full-fledged theory
The Philosophiae Naturalis Principia Mathematica (now known as the Principia) was published on 5 July 1687 with encouragement and financial help from Edmond Halley. In this work Newton stated the three universal laws of motion that were not to be improved upon for more than two hundred years. He used the Latin word Gravitas (weight) for the effect that would become known as gravity, and defined the law of universal gravitation. Newton's postulate of an invisible force able to act over vast distances also led to him being criticised for introducing "occult agencies" into science which eventually turned out to be false.
Role of Gravity in the Improvement Of Human Life
- Gravity is a very important and critical part of our everyday lives. It is Gravity which keeps us on the ground and prevents us from floating into space.
- Research on Gravity is the basis for future usage of this phenomena for further improvement in our lives.
- Gravity powers Flushing System in residential and commercial establishments.
- Knowledge of Gravity has led to Artificial Gravity which is being used to train Astronauts.
- Gravity Dams are used to generate electricity.
- A recent development called Electro Gravity Tile, can carpet the roads and make energy from the movement of the cars on the road. This technology is green and clean and saves millions of tons of emissions of CO2 and other gases.
