41
New Theories / Re: What exactly is gravity?
« on: 23/05/2021 15:08:57 »Forget light for a moment and consider a tennis ball.Here, Einstein's idea's are moving around Newton's inverse square law. The space ship is far away from the mass, deep in space, still there is gravity, how?. Finally, he came to know a conclusion that it may be due to acceleration. This is one of the incorrect ideas of Einstein.
Spaceman in no gravitational field (or freefall) feels weightless. If they push a tennis ball away from them it will go in a straight line to the opposite wall (as would light).
Now the spaceship starts to accelerate, the ‘bottom’ wall of the ship moves up and pushes against the feet of spaceman so he has to use leg muscles to stand; if he now pushes the tennis ball away it will fall towards his feet, exactly the same as if he were standing on earth in a gravitational field. Acceleration and gravity are equivalent.
Now a days, science developed a lot. We are sending our space ships to Moon and also coming back to Earth. For that our space ships are going to ISS regularly. Initially, at the time of departure from Earth, things inside the cabin of the space ship behaves differently, and it is not due to acceleration 9.81 m/s. In case, if the space ship accelerates less then 9.81 m/s, in such case, there is a chance for the space time of the cabin to inter act with the outside space time and thus gravity coming down. If the space ship accelerates more than 9.81 m/s gravity field inside the space ship remains intact.
Now, let us assume that space ship started from the ISS, inside the cabin, if you push the tennis ball it will not fall to the the ground but move straight. Cabin of the spaceship is locked in a non-gravity, doesn't mean that there is no gravity but it is acting differently or weak gravity. The crew inside the cabin need not use muscle power to stand.
In my view, Gravity is a field present on Earth. A part of this field is packed in the cabin. However it is surprise to see, this field in a small area such as cabin giving same results. Gravity never increases due to acceleration and there are no instances or proof as such.
Ok, if the space ship accelerates from ISS and if there is gravity due to acceleration, I am sure that I will accept that mine hypothesis is wrong. What is there.