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Path: ...!weretis.net!feeder9.news.weretis.net!i2pn.org!i2pn2.org!.POSTED!not-for-mail From: hertz778@gmail.com (rhertz) Newsgroups: sci.physics.relativity Subject: In 1911, EInstein thought that photons had mass. Still in use 123 years after, Date: Sat, 14 Sep 2024 03:31:43 +0000 Organization: novaBBS Message-ID: <b0788923a07a14a4d1cd494533f4ae12@www.novabbs.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Info: i2pn2.org; logging-data="1980001"; mail-complaints-to="usenet@i2pn2.org"; posting-account="hWiuCAeR3KEZYJfTvV11n0qrRi6oqW/zjvEZQQGun9A"; User-Agent: Rocksolid Light X-Rslight-Site: $2y$10$ASDNqe8U4mYSlDKLuu2RoeQaOegTmj690N8DycC/UcP4o3ju0NLDu X-Rslight-Posting-User: f685b96694175b2ad43ead343ead0a9c0082fe88 X-Spam-Checker-Version: SpamAssassin 4.0.0 Bytes: 4034 Lines: 93 This is an extract from the 1911 paper: On the Inuence of Gravitation on the Propagation of Light *********************************************************************** 2. On the Gravitation of Energy ....... (1a) E₁ = E₂ + E₂/c² Φ This equation expresses the energy law for the process under observation. The energy E₁ arriving at S₁ is greater than the energy E₂, measured by the same means, which was emitted from S₂, the excess being the potential energy of the mass E₂/c² in the gravitational field. This shows that in order to satisfy the energy principle we have to ascribe to the energy E, before its emission from S₂, a potential energy, due to gravity, which corresponds to the (gravitational) mass E₂/c². *********************************************************************** NOTE: Φ = -GM/r, the gravitational potential on Earth, at a distance r from its center. Einstein simplified Eq. 1a for low heights as: (1) E₁ = E₂ (1 + hγ/c²), where γ is the ground level gravitational acceleration (today known as g). As per Planck, it's known that the electromagnetic energies involved are: E₁ = hf₁ E₂ = hf₂ Then Eq.1 becomes f₁ = f₂ (1 + hγ/c²) OR Δf/f₂ = hγ/c² Which is the same equation used in the 1961 Pound-Rebka experiment, the 1971 Hafele-Keating experiment and MANY MORE, like in the 2017 Mudrak theoretical paper for calculations of the GR effect on Galileo GNSS. Almost ALL relativists forget that the 1961 paper had the name: "Do photons have weight?". All relativists claim that the 1911 paper WAS WRONG, and that was valid was the 1915 Schwarzschild solution, which is WIDELY USED TODAY, but that contain the conjugate effects of SR and GR. But RELATIVISTS FORGET that Schwarzschild solution is theoretically separated in two parts: GR and SR effects. Also (Paul and so many others), they FORGET that IT'S IMPOSSIBLE to measure each effect separately. So, the 1911 Einstein's equation is ALIVE TODAY, and widely used (with minor aggregations like quadrupolar momentum J2, which is irrelevant and can be dismissed here). What PERSISTS is that Einstein, Pound-Rebka and many others before and after, ACCEPTED THAT PHOTONS HAD MASS. If photons have mass (electromagnetic mass), then MANY THEORETICAL EXPLANATIONS HAVE TO BE REFORMULATED. If photons have mass, such mass has to be incorporated in the calculations of gravitational fields and electromagnetic energies, as Einstein CLAIMED in 1911. Then, photons falling into Earth's surface GAIN KINETIC ENERGY WHILE FALLING (blue-shifting), and photons abandoning Earth's surface LOSS KINETIC ENERGY WHILE ESCAPING (red-shifting). And the equation that prevails all over of the above is hf = mc². It also implies that INERTIAL electromagnetic mass IS DIFFERENT FROM GRAVITATIONAL ELECTROMAGNETIC MASS, and that the first one is variable with height, in this way: Δm/m₂ = -hGM/rc² (h represents the height above surface, being h << r. Low altitudes). Deal with that, relativists.