Jump to content

Without time.


DimaMazin

Recommended Posts

 

No, but I believe any (very small) differences are compensated for (swansont could provide more detail than you could possibly want :)).

Yes, I imagine that would be the case. I suppose the extrapolation from the measured temperature is smooth down to zero.

 

Yes, like drinking from a fire hydrant probably, what he could tell us. :)

Link to comment
Share on other sites

 

The second is defined as: the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom at rest at a temperature of 0 K.

Radiations are motions. Do you think the clock doesn't count quantities of the radiations?

Link to comment
Share on other sites

  • 2 weeks later...

 

And I don't know what "counted by standard of simultaneity" means. Especially in regard to a single clock.

Well.Then time is quantity of standard motions of simultaneity in simultaneity with other motions and immovability.

Link to comment
Share on other sites

Radiations are motions. Do you think the clock doesn't count quantities of the radiations?

 

You are measuring the frequency of the radiation. Calling that motion is a stretch. And most clocks don't actually measure it that way, they measure whether the atoms have undergone a hyperfine transition (a change in spin orientation). It's QM, so it's really hard to describe that in terms of motion. What moves when an electron changes its spin state? What's the trajectory?

Has 0oK been achieved?

 

Doesn't matter. You calculate the effect of the blackbody shift based on the temperature of the system. The point is that motion is not part of the system that gives you the time. Motion actually limits the precision of the measurement; great effort is expended to keep the atoms from moving very much. That's why the state of the art clocks and frequency standards use cold atoms, or ions.

Link to comment
Share on other sites

  • 4 months later...
  • 7 months later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.