Subject: Gravity

Where does gravity come from?



It seems strange that it continues forever!  Other field type

forces like weak nuclear force and electromagnetism abate over

time, and can be made weaker or stronger.



If there is a virtual particle interchange involved in gravitational

force, there must be an implied energy exchange.



While I understand that there has been no experimental or observed

evidence of spontaneous nuclear particle decay, is it possible that

gravity is 'powered' by mass/energy conversion at the sub-nuclear level?



As the gravitational constant is a very small number, mass lost in such conversion

would be tiny and difficult to observe.



I have always been interested as a layman in the way the world works, but this has

always had me beat - how can it just go on, apparently forever?



I hope someone can shed some light on this!



Jarmo

Re: Gravity