Le mar. 10 déc. 2024, 19:42, Alan Grayson <[email protected]> a écrit :
> > > On Tuesday, December 10, 2024 at 11:36:19 AM UTC-7 Quentin Anciaux wrote: > > > > Le mar. 10 déc. 2024, 19:31, Alan Grayson <[email protected]> a écrit : > > > > On Tuesday, December 10, 2024 at 11:07:25 AM UTC-7 Alan Grayson wrote: > > On Tuesday, December 10, 2024 at 6:29:25 AM UTC-7 John Clark wrote: > > On Tue, Dec 10, 2024 at 5:47 AM Quentin Anciaux <[email protected]> wrote: > > >> *My conclusion is that there's a contradiction in evidence, since the > situation of the car fitting and not fitting makes no sense. AG * > > > *>>And the answer only lies in disagreement of simultaneity of both doors > being closed and the car fully inside the garage, and that is dependent on > the frame of reference, there aren't any contradictions.* > > > *Exactly! In Special Relativity two observers in different frames of > reference can disagree about what order a series of events should be in, > provided that the events are "spacelike separated", that is to say if even > the speed of light is not fast enough to send a signal between them. One > observer could say events should be ordered XYZ and another insist the > order should be XZY. The classic example is two lightning strikes hitting > the front and back of a very fast moving train, an observer on the train > might see them as simultaneous but an observer on the ground see one hit > happening before the other. * > > *And in the example that Alan has trouble with, one observer might say the > back of the car entered the garage before the back door of the garage was > opened, and another observer in a different frame of reference would say > that happened after the back door of the garage was opened. So one would > say the car was able to fit into the garage and the other would say it > could not.* > > * John K Clark * > > > *Apparently you haven't read my posts or don't understand them. If the > initial conditions are set so the car's length is longer than the garage, > and then the car is set in motion, the car is NEVER inside the garage since > the garage is contracting! In this situation, there would be no > measurements that you allege for which simultaneity would apply. There is > NO entering of the garage for the car! AG * > > > *Further, you bring up spacelike separated events to allegedly make your > points. But as far as I can tell, no events in this situation are spacelike > separated. AG * > > > So the front door, the back door, the front of the car, the rear of the > car are all at the same spacelike location? I don't call that doors or > cars, I call that a point, and there are no paradoxes > > > *You don't get it. The car is never inside the garage, given the initial > conditions. AG * > Someone doesn't get it that's true, if somehow you could stop the I'm the genius versus the dumb world attitude, that'll surely help you, you have a big ego problem. > -- > 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 view this discussion visit > https://groups.google.com/d/msgid/everything-list/239821ec-3e92-43fa-9b04-ae9c4ad4893dn%40googlegroups.com > <https://groups.google.com/d/msgid/everything-list/239821ec-3e92-43fa-9b04-ae9c4ad4893dn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 view this discussion visit https://groups.google.com/d/msgid/everything-list/CAMW2kAqBv7%2B0E5DcwDRO0HkE6dVGnxncM0qxc0Ha4-6hibb7ow%40mail.gmail.com.
