Search found 709 matches

by johanfprins
Mon Jan 30, 2012 6:06 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

and within the twins example, each clock is stationary within its own frame, ie on the captains mantlepiece within the ship, thus is 'unaware' of the speed its travelling at , thus both clocks have the exact same time (i think this is what johan argues, using the lorentz transform to back it up ? )...
by johanfprins
Sat Jan 14, 2012 1:11 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

I have argued with you about what you are saying about binding energy and QM and EM etc before and have no desire to do it again. However, when you call something "rest mass", it simply makes no sense to say it changes depending on the reference frame, whether it be 5m/s or 299,792,457m/s. It is on...
by johanfprins
Sat Jan 14, 2012 12:01 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

Rest mass cannot change by definition in SR. Rest mass is just whatever the mass is in the rest frame. It can't be different just by looking at it from another frame. I don't suddenly change mass because someone looked at me from a spaceship passing by. You go on pages arguing that physics has to b...
by johanfprins
Sat Jan 14, 2012 9:05 am
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

i can say that in my nbody polywell simulations, i took SR into account by converting to "proper inertia" via a function based on the lorentz transform before doing the force/acceleration calculations (F=ma, a=F/m, v=v+a*dt...), and then converted it back via the function's inverse. this worked ver...
by johanfprins
Fri Jan 13, 2012 7:35 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

Thanks for your answers (again). So really the core of the entire discussion centers on whether SR Dilation is a function of the Accell/Decell cycles (which implies it is directly related to GR), or that it is function of purely the difference in velocity. The SR dilation cannot be a function of th...
by johanfprins
Fri Jan 13, 2012 11:51 am
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

Johan, Can I simply that to say that you mean that Dilation occurs only in the presence of Acell, Decell, or Gravity? And that your entire point is that during the phase of travel at constant speed, there is no rate difference? My point is that the Lorentz transformation is only valid for a linear ...
by johanfprins
Thu Jan 12, 2012 7:41 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

Trying to understand further: SR does not declare that all frames of reference are equivalent, only so-called inertial frames The accelerating twin is not inertial while they're accelerating which is observationally detectable. The acceleration was experienced by one twin and obviously not by the o...
by johanfprins
Thu Jan 12, 2012 12:38 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

That is symmetric, but when one twin turns around it affects his counting of other twin's time immediately, No it affects the counting of the incoming signals for BOTH twins immediately and the effect is the SAME in both reference frames. There is no need for further communication between us Johan....
by johanfprins
Thu Jan 12, 2012 11:47 am
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

I'm not even a physicist, just enjoying learning SR on this thread, but I have not found any questions recently I could not answer And answer consistently. Yes you gave answers but they are all wrong. I had a student who always had an answer but it was never really an answer. You remind me of him. ...
by johanfprins
Wed Jan 11, 2012 8:34 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

the problem now is to deduce F() from one's observations and verify that it satisfies these two postulates and remains self-consistent after repeated (iterative/recursive) application. this is SR. (in the case where there is mass (and thus F=ma) but no gravity, at least) happyjack, you are wasting ...
by johanfprins
Wed Jan 11, 2012 6:49 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

That is symmetric, but when one twin turns around it affects his counting of other twin's time immediately, No it affects the counting of the incoming signals for BOTH twins immediately and the effect is the SAME in both reference frames. There is no need for further communication between us Johan....
by johanfprins
Wed Jan 11, 2012 6:44 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

Johan, HOW do you determine when the pulse frequency increases for each twin? As soon as they reverse their relative motion so that they do not move away from one another but towards one another, this frequency changes. Note that one twin changes direction to mark start of inbound and end of outbou...
by johanfprins
Wed Jan 11, 2012 6:32 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

That is symmetric, but when one twin turns around it affects his counting of other twin's time immediately, No it affects the counting of the incoming signals for BOTH twins immediately and the effect is the SAME in both reference frames. [and othr twin is so affected only after some time. My impec...
by johanfprins
Wed Jan 11, 2012 6:07 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

The results above, derived directly from the Lorentz transformation, do not agree with your obviously wrong reasoning when sending light pulses. Indeed, because you assume that the "return leg" pulses are the same for both moving and stationary twin, whereas it is obvious that the change due to the...
by johanfprins
Wed Jan 11, 2012 6:01 pm
Forum: News
Topic: Room-temperature superconductivity?
Replies: 1893
Views: 380247

Sound waves have a uniquely stationary medium within which they propagate. Light waves have not. Thus to compare the two types of Doppler shifts is showing collossal ignorance on your part. The comparison I was making was the way in which high/low frequencies received depend on the relative velocit...