Ticking Clock and Pendulumn Thoughts

  • Thread starter Thread starter NWH
  • Start date Start date
  • Tags Tags
    Clock Thoughts
NWH
Messages
107
Reaction score
0
So I was sitting on the toilet earlier (not needed, I know lol) and the chord for the bathroom light just happened to be swinging back and forth; I also noticed the clock to be ticking. At one particular moment, the chord for the light was swinging in sync with the ticking of the clock and slowly worked it's way out of sync; and I started to think about the chord's point of view relative to the ticking of the clock.

Would it be fair to say, that from one particular view point, that the chord swinging back and forth didn't slow down, but the ticking of the clock actually started to speed up? Or would that be over analysing something that has no significant importance? I know it's a very meaningless situation to think about, however I was just curious what relativity would actually say about this situation.
 
Physics news on Phys.org
"From one particular view point," that of you "sitting on the toilet", there is only one constant time rate to consider. The swinging chord of the bathroom light is acting as a pendulum, ticking at one constant rate and the clock is ticking at a slightly different constant rate. All you observed was a beat between the two, being in sync for awhile then drifting out of sync and eventually (unless the pendulum uses up all its energy and stops) getting back in sync again.

If the chord has a single "point of view", it is identical to yours and it merely sees the clock ticking at a constant rate. The clock sees the chord ticking at a slightly different constant rate.

This has nothing to do with relativity because nothing in your scenario is traveling at a constant speed relative to anything else in your bathroom.
 
In Philippe G. Ciarlet's book 'An introduction to differential geometry', He gives the integrability conditions of the differential equations like this: $$ \partial_{i} F_{lj}=L^p_{ij} F_{lp},\,\,\,F_{ij}(x_0)=F^0_{ij}. $$ The integrability conditions for the existence of a global solution ##F_{lj}## is: $$ R^i_{jkl}\equiv\partial_k L^i_{jl}-\partial_l L^i_{jk}+L^h_{jl} L^i_{hk}-L^h_{jk} L^i_{hl}=0 $$ Then from the equation: $$\nabla_b e_a= \Gamma^c_{ab} e_c$$ Using cartesian basis ## e_I...
Abstract The gravitational-wave signal GW250114 was observed by the two LIGO detectors with a network matched-filter signal-to-noise ratio of 80. The signal was emitted by the coalescence of two black holes with near-equal masses ## m_1=33.6_{-0.8}^{+1.2} M_{⊙} ## and ## m_2=32.2_{-1. 3}^{+0.8} M_{⊙}##, and small spins ##\chi_{1,2}\leq 0.26 ## (90% credibility) and negligible eccentricity ##e⁢\leq 0.03.## Postmerger data excluding the peak region are consistent with the dominant quadrupolar...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. The Relativator was sold by (as printed) Atomic Laboratories, Inc. 3086 Claremont Ave, Berkeley 5, California , which seems to be a division of Cenco Instruments (Central Scientific Company)... Source: https://www.physicsforums.com/insights/relativator-circular-slide-rule-simulated-with-desmos/ by @robphy
Back
Top