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**Physics, Astronomy & Cosmology / Re: How does gravity exert its influence infinitely?**

« **on:**27/05/2019 10:57:55 »

Hi Halc,

Thanks for your replies,

What I can't understand is a mass has its effect "space time curvature" everywhere at an instance is not physical

Also there should be a starting moment when mass started to bend space-time it can't be infinitely in the past.

How mass bend space-time infinitely while this infinity in fact is not fixed and continues forever?

If an object is at constant speed it will move forever never reaching infinity, if I want to move an object from point A to point B I have to go through several points to reach point B this what physics says I can't let it jump from point A to point B the same for gravity it can't jump at an instance to infinity"even infinity can't be reached" so how space-time curvature started at a moment and at instance spread everywhere?

Thanks for your replies,

What I can't understand is a mass has its effect "space time curvature" everywhere at an instance is not physical

Also there should be a starting moment when mass started to bend space-time it can't be infinitely in the past.

How mass bend space-time infinitely while this infinity in fact is not fixed and continues forever?

If an object is at constant speed it will move forever never reaching infinity, if I want to move an object from point A to point B I have to go through several points to reach point B this what physics says I can't let it jump from point A to point B the same for gravity it can't jump at an instance to infinity"even infinity can't be reached" so how space-time curvature started at a moment and at instance spread everywhere?

Mass cannot be 'started', so that doesn't work.What about a rotating object with a torque? it start to have energy inside it and mass and energy are interchangeable so we will then have mass started.We didn't simply place energy from an environment to the mass we transferred energy from form to another so we indeed started new mass with its own gravity.