What are the problems in Newton's law of universal gravitation? Please explain using simple physics if possible.
What is wrong with explanation that small particles bombarding Earth, Sun and Moon from all directions and from directions which they can't bombard (space between earth and sun) apears smaller pressure than from those side from which they can bombard? Feynman was saying it's wrong because soon earth or whatever planet should soon stop, but if those particles fast enough and enough small (like atom size) then realy not nessasary some over explanation than that which was assumed by old civilisation which meaned Feynman. At least this theory which mentioned feynman shouldn't be such easy pushed away and at least mentioned in physical books in high school or 5-10 classes. How they can hide such things anyway?
Because it is quackery.
Would you prefer we teach everything that hasn't shown to be valid in high school classes? Do you know how quickly we have to keep changing those books once we figure out they don't work? Do you know how many of such theories have been shown to be FALSE?
This "shadow" gravity effect has been discussed before, and it is off-topic to this thread. If you think there is a valid formalism for such a model, please use the IR forum, not here.
But from philosophycal or whatever point of view it's still very small probability that enshtein theory of gravity can be right even do not taking in count that it is not finished.