Recent content by halpmaine

Hello All. Please forgive me if the answer to the following is found in PF but I didn't find it doing a search... My question is this: what prompted Einstein to even consider light or better C as integral to E or, well, 'everything'? Was it mathematical such that he had the E and m but not...

I concur, NJrunner...why wouldn't this system play by the rules which are well established? Energy being destroyed feels wrong... and ominous on many levels; here's to hoping it's just a matter of needing a new way to measure!

Yah, definitely hard to conceptualize that!

Phinds, given what has been discussed here and on other threads to which have been alluded there seems to be a sentiment of E being 'cancelled out' when we move to the cosmos scale. Is this purely a mathematical 'result' or is it being suggested that E is not merely transferring form and...

Thanks Orodruin/All! I think I've been guilty of thinking of the Universe in terms of a closed, isolated system - albeit a NEARLY infinite one - to which the fundamentals would apply..?? I guess I was 'hoping' that while mathematically complex, the solution to the ultimate question would be...

Wouldn't the explanation that fits fundamental laws (e.g. Conservation of E) while making the least asumptions be an ongoing bang-crunch-bang...scenario? Why couldn't expansion be eventually reigned in by forces, dark matter and the like - ultimately leading to contraction? Why shouldn't...

Is the Universe considered a closed system?

Are there closed systems to which conservation of E does not apply?

Are there situations when conservation of Energy does NOT apply? Thanks.

Thank you, Greg. I have a relatively (sorry) simple (rhetorical) question. How or better where should I post/ask it? It pertains to fundamental laws of physics... -Andrew (halpmaine)

I am looking forward to learning much, thanks!