Re: Elämän tarkoitus nykytieteen valossa
Lähetetty: 16.11.2018 16:40
HiTec kirjoitti:ds-jekkeri kirjoitti:Oli Mm Einsteinin ns. teorioista (yleensä muilta kopioiduista...) sitä mieltä että suoraan roskakoriin. Oli elämänsä loppuun asti sitä mieltä että eetteri tai ”active medium” on olemassa. Se on se simulaattorin fyysinen pikselikokoelma.
No jaa, ilman hänen suhteellisuusteoriaansa meillä ei olisi tänään esim. GPS:ää![]()
https://tieku.fi/fysiikka/teoriat/suhte ... telijoilleIlman suhteellisuusteoriaa GPS:ää ei voisi käyttää
Höpsistä pussiin, GPS ei käytä "suhteellisuusteoriaa". Se että kellot käyvät eri ajassa ilmakehän ulkopuolella ei todista eikä kumoa mitään yksittäistä teoriaa. Ei pitäis uskoa kaiken maailman nettihöpinöihin (no pun intended
https://medium.com/@GatotSoedarto/top-4 ... 5cabc6e619
Laiskemmille tässä olennaiset lainaukset:
"Van Flandern goes on to discuss GPS clocks, which are often cited as being proof positive of Einstein’s relativity. It may surprise you, but the GPS system doesn’t actually use Einstein’s field equations."
"In fact, this paper by the U.S. Naval Observatory tells us that, while incorporating Einstein’s equations into the system may slightly improve accuracy, the system itself doesn’t rely on them at all. To quote the opening line of the paper, “The Operational Control System (OCS) of the Global Positioning System (GPS) does not include the rigorous transformations between coordinate systems that Einstein’s general theory of relativity would seem to require.”
At high altitude, where the GPS clocks orbit the Earth, it is known that the clocks run roughly 46,000 nanoseconds (one-billionth of a second) a day faster than at ground level, because the gravitational field is thinner 20,000 kilometers above the Earth. The orbiting clocks also pass through that field at a rate of three kilometers per second — their orbital speed. For that reason, they tick 7,000 nanoseconds a day slower than stationary clocks."
"...since in Einstein’s theory the relevant speed is always speed relative to the observer, it was expected that continuously varying relativistic corrections would have to be made to clock rates. This in turn would have introduced an unworkable complexity into the GPS. But these corrections were not made. Yet “the system manages to work, even though they use no relativistic corrections after launch,” Van Flandern said. “They have basically blown off Einstein”.
Physicists must know that GPS was not actually designed to test Einstein’s theory of relativity, so cannot provide a validation of relativity as experiments specifically designed for that purpose."
