Recent content by plymale2021

Good Day, I sent Mr. Cramer an email and he replied to my email ! I sent the following question to Mr. Cramer: Mr. Cramer replied:

Hi All, Thank you very much. John G. Cramer claims that a massless charged particle in space would emit Cherenkov, but based on above discussion I think he made a mistake. Reference: https://www.npl.washington.edu/av/altvw199.html It still feels weird. John G. Cramer is a physicist...

Sorry for not being clear. Penrose conformal cyclic cosmology seems to suggest massless electric charged particles: https://link.springer.com/article/10.1007/s10701-013-9763-z He solved the rest-mass with de Sitter universe, that seems (in theory) be possible because mass is not a Casimir of...

Hi strangerep / Hi all, Thank you very much for the detailed answer. I would like to take an example to understand above. I am not a physicist, so if below is very "strange" please correct me: According our model based on Poincaré a massless electric charge particle cannot exist because a...

Hi, All cosmological models with a non-zero cosmological constant will approach a de Sitter universe in the far future. In theory this can means that the most basic group of particle physics should be the de Sitter rather than Poincaré. Mass is a Casmir operator of the Poincare but not of the...