Newton's optical theory of gravity

AI Thread Summary
Isaac Newton's optical theory of gravity, which involves light-like corpuscles, is discussed as a potential explanation for certain gravitational phenomena, including aspects of Modified Newtonian Dynamics (MOND). Some participants express skepticism about the existence of this theory, noting that it resembles LeSage's discredited gravity theory. The conversation highlights that while the theory has not been disproven through failed predictions, it faces significant criticisms regarding its plausibility and implications. Key issues include the need for an infinite supply of particles and predictions of phenomena that lack experimental support. The discussion encourages further research into the topic for clarity and understanding.
TEFLing
Messages
237
Reaction score
22
Isaac Newton had an optical theory of gravity which you could make work with the light like corpuscles Newton never knew of, namely neutrinos

So said my physics Professor once ... I wish there was a forum for discussing Newton's optical gravity theory, I think it could help explain ( the Newtonian half of ) MOND too... Which I could only know with discussion

Is it permissible to discuss Newton's optical theory of gravity?
 
Science news on Phys.org
I have never heard of this supposed theory by Newton. If you can provide the reference, then we can discuss it.

Your description of it sounds similar to LeSage's long-discredited theory of gravity.
 
  • Like
Likes TEFLing
TEFLing said:
Isaac Newton had an optical theory of gravity which you could make work with the light like corpuscles Newton never knew of, namely neutrinos

So said my physics Professor once ... I wish there was a forum for discussing Newton's optical gravity theory, I think it could help explain ( the Newtonian half of ) MOND too... Which I could only know with discussion

Is it permissible to discuss Newton's optical theory of gravity?
Newton had a theory of optics, which was corpuscular. He also had a theory of gravity. I don't believe they were ever combined.
 
DaleSpam said:
I have never heard of this supposed theory by Newton. If you can provide the reference, then we can discuss it.

Your description of it sounds similar to LeSage's long-discredited theory of gravity.
Could you elaborate briefly please?
 
DaleSpam said:
I have never heard of this supposed theory by Newton. If you can provide the reference, then we can discuss it.

Your description of it sounds similar to LeSage's long-discredited theory of gravity.
Yes, that is the theory I was trying to remember

I understand that the theory has not been disproven in the sense of making predictions which failed
 
TEFLing said:
I understand that the theory has not been disproven in the sense of making predictions which failed

It has some pretty severe downfalls. To quote John Playfair:

An immense multitude of atoms, thus destined to pursue their never ending journey through the infinity of space, without changing their direction, or returning to the place from which they came, is a supposition very little countenanced by the usual economy of nature. Whence is the supply of these innumerable torrents; must it not involve a perpetual exertion of creative power, infinite both in extent and in duration?
 
TEFLing said:
I understand that the theory has not been disproven in the sense of making predictions which failed

If you looked it up on Wikipedia, you would see pages of places where it fails.
 
TEFLing said:
Yes, that is the theory I was trying to remember

I understand that the theory has not been disproven in the sense of making predictions which failed

As with all questions of this sort, you will get better answers if you research the topic yourself first, then come back with more specific questions. If you google for "le sage gravity" you will find many good references - read these, and we can help you through any parts that aren't clear.
 
TEFLing said:
I understand that the theory has not been disproven in the sense of making predictions which failed
It predicts spontaneous and continual heating, which has failed. It predicts graviational drag which has failed. It predicts a violation of the equivalence principle which has failed.

It also would require tachyons which, while not exactly a failed prediction is certainly a prediction with no experimental support. All of this is covered on the Wikipedia page.
 
Back
Top