The logic behind general relativity is more simpler than you think it is. When you throw an object in air vertically the object falls down and the path if you observe is a straight line and there is no force needed in order to travel at constant acceleration which is 9.8 m/s^2 in a straight line. Straight line does not necessarily have to follow an horizontal trajectory it could be vertical.

So no force is needed in gravity so newton was wrong. This is a simple reasoning by observing newtons first law which states. An object at rest stays at rest and an object in motion stays in motion with the same speed and in a straight line unless acted upon by an external force. So newton could have reasoned it out as the answer provided by general relativity is present in newtons first law. In simple terms the first law states if an object moves in a straight line at constant speed there is no force.

Now let me explain why newton made this mistake. That is also simple. He observed movement of the Earth and that was due to gravity he reasoned but the Earth did not follow a straight line.

Now came Einstein who reasoned that this path is a geodesic and a geodesic is the shortest distance but it is a geodesic due to curvature of space time. Again this is a mistake made by Einstein as he did not study astrophysics. There is a geodesic but it is due to a reason.

How is a planet formed? The debris of gas and dust moves and has an initial momentum so when this dust and gas combine to form a planet the same initial momentum is transferred so now the planet has initial momentum some may call it angular momentum. So why does the Earth not move into the sun in a straight line? This is because it is moving and it has initial momentum as explained. So the Earth really wants to move in a straight line but the initial momentum stops it. So the reason given by Einstein that this is a geodesic is correct but this is not due to curvature of spacetime according to me.

So is it correct to say that the earth moves in a geodesic around the sun?

So no force is needed in gravity so newton was wrong. This is a simple reasoning by observing newtons first law which states. An object at rest stays at rest and an object in motion stays in motion with the same speed and in a straight line unless acted upon by an external force. So newton could have reasoned it out as the answer provided by general relativity is present in newtons first law. In simple terms the first law states if an object moves in a straight line at constant speed there is no force.

Now let me explain why newton made this mistake. That is also simple. He observed movement of the Earth and that was due to gravity he reasoned but the Earth did not follow a straight line.

Now came Einstein who reasoned that this path is a geodesic and a geodesic is the shortest distance but it is a geodesic due to curvature of space time. Again this is a mistake made by Einstein as he did not study astrophysics. There is a geodesic but it is due to a reason.

How is a planet formed? The debris of gas and dust moves and has an initial momentum so when this dust and gas combine to form a planet the same initial momentum is transferred so now the planet has initial momentum some may call it angular momentum. So why does the Earth not move into the sun in a straight line? This is because it is moving and it has initial momentum as explained. So the Earth really wants to move in a straight line but the initial momentum stops it. So the reason given by Einstein that this is a geodesic is correct but this is not due to curvature of spacetime according to me.

So is it correct to say that the earth moves in a geodesic around the sun?

Last edited: