I understand clocks in satellites do not run at the same speed as clocks here on earth. However, I just can't understand why we would use Einstein's equations to adjust the clocks on satellites when it would be so easy to adjust them in accordance to the exact time here on earth.
> On 17 June 2014 07:57, <[email protected]> wrote: > >> I don't know about Einstein's 13 tensor equations and their exact >> results. >> > > You should at least know that that is how a physical theory works. > > >> I just don't believe space can be curved. > > > Why not? It just needs a higher dimension. Actually there are > interpretations of Einstein's equations that don't require space to be > curved, but just change the distances within it to give the same result > (somehow - I'm not very up on this, but I think the explanation involved a > picture by MC Escher). > > >> And I do believe Coulomb fields can be curved. > > > I'm not sure what this means. How, and in what way? > > >> Our Universe is not a mathematical structure; it is a >> combination of atoms and molecules and light and other things that can >> be >> explained with physics. We just need to use the right physics. >> > > So why is maths so effective at explaining the nature of existence? > >> >> As for correcting the clocks in satellites, I doubt if they rely on >> Einstein's equations. > > > You're wrong. They do. > > >> My understanding is that his equations say that >> time passes slower at high speeds and faster at reduced gravity. The >> simple way to correct for time variations in the satellites is to adjust >> the clocks every now and then to make sure they are consistent with the >> time here on earth. My guess is that is what they do. >> > > They have to be adjusted constantly, since GPS would drift out by several > meters / day otherwise. The point is that the time dilation of the GPS > clocks is exactly what is predicted by Einstein's equations. If you're > going to attempt to explain the universe, you need to do at least as well > as relativity. > > PS I still have some questions about this cold plasma shell thing by the > way. > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
