I guess I can't really make a good question about CTC's unless I understand the mathematics and the assumptions that allow them to exist. That won't be anytime soon I'm afraid.
I can abide with the answer nobody knows though.
Thanks for the response.
Thanks both of you for responding.
I came to the same conclusion about determinism mentioned on that other thread.
I have not taken a course in quantum mechanics so I don't know about this true randomness that it can introduce. If the universe were a supercomputer with unbounded memory and...
I cannot think of any physical way to verify the multiverse idea. It's not really time travel in that case, but traveling from one universe to another, isn't it? Why would this alternative universe be similar to ours? Does this theory say that new universes are formed whenever alternate...
I wish I had more time to learn about this stuff, it is so fascinating.
I went into Engineering, but sometimes I wish I had gone into Physics so I could understand these sorts of things better.
I don't really know anything about these principles and theories you are talking about.
I should...
Thanks for that JesseM, I posted before I realized you responded.
That's very interesting. Clearly I am oversimplifying this problem. Thanks for the explanation.
Well, if you opened up a wormhole from planet X to planet Y where planet Y is closer to Earth, then the wormhole could travel into the future (from X's perspective) given the configuration described above? The wormhole from X to Earth is a portal to the future from X's perspective, so why...
Thanks for the document, I'll start reading it. I don't know what closed time-like curves are.
I don't know what you mean by handing yourself a manual. In my scenario, it would be impossible to interact with your past self because any action you performed in the past on planet X would only have...
I do not know the details, but I have read that some theories allow backwards time travel using wormholes. Backwards time travel seems so impossible because of things like Grandfather's paradox and such.
I had an idea and was wondering if anyone who knew more than me about the subject could...
I honestly can't really remember. I am glad that you think my derivation makes sense. I just wanted to make sure I didn't violate any rules in math since I have never really dealt with reciprocals of integrals before. Thanks Redbelly98!
I understand, but if the field is zero, that says nothing about the potential being zero.
For example, if you have two positive charges of 1 Coulomb at x=1 and x=-1,
then the electric field will be zero at the halfway point in between them (the winds will cancel). However the potential will not...
Ohm's Law: V=IR
V = voltage across resistor
I = current through resistor
Current cannot flow since the circuit is incomplete (Kirchoff's Current Law).
I = 0,
regardless of R, V = 0
The p.d. across the resistor is zero, but the p.d. from the open end of the resistor to the "simple wire" is 5V.
Wouldn't your "wind" correspond to electric field rather than electric potential? Assuming that wind will flow away from areas of high pressure/concentration, I would think that potential would correspond to pressure rather than wind flow.
Likewise, a point with no electric field does not...
Yes, sorry.
Example: The function x/x = 1 everywhere except x=0 where it has a removable discontinuity (undefined). It's limit however as x goes to zero is 1.
\frac{x}{x(1+2x)} will therefore have the same limit as
\frac{1}{1+2x}.
Your problem arises from the fact that the numerator is...
The squareroot square can be interpreted as |x|
You then have
|x|/(x(1+2x))
The limit from the right side (assuming x > 0) is
lim 1/(1+2x) = 1
The limit from the left side (assuming x < 0) is
-1/(1+2x) = -1
Since the left and right side limits do not match, the limit does not exist.