Recent content by questionner

  1. Q

    A Does CPT Symmetry Apply to a Mirror World with Reversed Properties?

    I was just simply thinking of a hypothetical world, like people saying the world with all CPT reversed have the same physics as our world. Another thing I am curious about is that a magnetic dipole with only one of C or P or T reversed is different from the original one. What interaction is...
  2. Q

    A Does CPT Symmetry Apply to a Mirror World with Reversed Properties?

    Yeah, so since the mirror world in the novel "Through the looking glass" seemed to have different physics law compared to ours, and since parity and time seems to be reversed, then charge should remain same as our world, right? :)
  3. Q

    A Does CPT Symmetry Apply to a Mirror World with Reversed Properties?

    Say we have a copy of our world, but with the "parity" and "time" reversed. (For example, the mirror world from the novel "Alice Through the Looking Glass".) If the "charge" is also reversed, then due to the CPT symmetry, the same physics law would apply to the mirror world, right? If we...
  4. Q

    Coupled pendulum with external force?

    Actually the right most one is not a pendulum. Sorry for the misunderstanding, but it's a two coupled oscillator!
  5. Q

    Coupled pendulum with external force?

    Okay thank you for the reply. So is the answer yes? or no?
  6. Q

    Coupled pendulum with external force?

    I got this picture from a superconducting parametric amplifier text I was reading. (The picture is a mechanical analog of a non-degenerate parametric amplifier.) If the balls(red and blue) were oscillating at their own natural frequencies, and an external force is driven(purple), how would the...
  7. Q

    Network analyzer vs Spectrum analyzer

    I'm currently studying the network analyzer(NA) and spectrum analyzer(SA), and one thing makes me wonder; Would it be possible to 'mimick' a NA with a SA and a signal generator(SG)? Ofcourse some phase calculations may also be required, but from my naive understanding, if a NA sends various...
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