Anybody who lives on Earth experiences gravity.
Newton was the first to mention the idea but others made changes to what is called gravity. Einstein is one of these.
The scientist who wrote about gravity and the laws of motion was Sir Isaac Newton.
Sir Isaac Newton is credited with conducting experiments and developing the theory of gravity in the late 17th century. His work on gravity culminated in his famous publication "Philosophiæ Naturalis Principia Mathematica" in 1687.
Isaac Newton is credited with formulating the law of universal gravitation in the 17th century. He was the first to describe the concept of gravity as a force that attracts objects with mass towards each other.
Gravity is governed by an "inverse square" relationship. This means gravity gets exponentially weaker the farther away you get. If I am 4 miles away from the center of the Earth, I will experience 1/16th the gravity that someone 1 mile away will experience. I am 4x farther away, but I get 16x less gravity.
No. You experience Earth's gravity constantly.
The first person to watch something fall. OR The first person to live.
Discover gravity
galileo.
Newton was the first to mention the idea but others made changes to what is called gravity. Einstein is one of these.
Isaac Newton
The scientist who wrote about gravity and the laws of motion was Sir Isaac Newton.
Isaac Newton did not discover gravity, but he is credited with developing the universal law of gravitation and explaining the mechanics of gravity in his work "Philosophiæ Naturalis Principia Mathematica." The concept of gravity was known to ancient civilizations, and Newton's contributions built upon existing knowledge.
Sir Isaac Newton is credited with conducting experiments and developing the theory of gravity in the late 17th century. His work on gravity culminated in his famous publication "Philosophiæ Naturalis Principia Mathematica" in 1687.
Zero gravity used to be more popularly called weightlessness. It can be experience for short periods on some fair ground rides and during airplane acrobatics. However it was first experienced for longer periods by the first astronauts. It was not so much discovered as they were expecting to experience it.
An example of gravity would be weight. Weight doesn't measure how heavy you are but rather the amount of pounds gravity is pushing on you with. Larger, heavier people may experience difficulty moving due to the amount of gravity applied to them compared to a small, skinny person.
No, the person inside the elevator will not float. Objects in freefall experience weightlessness, but the person will still accelerate downward due to gravity. The experience will feel like weightlessness, but they are still subject to gravity's pull.