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About julian403

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05-21-2019 12:31 AM
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10 Likes

  1. julian403
    julian403 liked post by mathman On thread : The beggining of the planet orbit
    Yes.
    Liked On: 07-10-2014, 12:31 AM
  2. julian403
    julian403 liked post by btr On thread : Definitions of volt using SI's fundamental magnitude
    Bolding added: As interesting as that is, my question was specifically whether that is now the definition adopted in the S.I. To be sure, I checked with BIPM and NIST, and according to both...
    Liked On: 07-04-2014, 06:49 PM
  3. julian403
    julian403 liked post by x0x On thread : Definitions of volt using SI's fundamental magnitude
    The new definition (http://en.wikipedia.org/wiki/Volt#Josephson_junction_definition) has been in place since 1990.
    Liked On: 07-04-2014, 06:44 PM
  4. julian403
    julian403 liked post by btr On thread : Definitions of volt using SI's fundamental magnitude
    Basically yes. 1 V is the potential difference between two points of a conductor when a current of 1 A flowing between those points dissipates 1 W of power.
    Liked On: 07-04-2014, 02:05 AM
  5. julian403
    julian403 liked post by Jilan On thread : Average, apparent and real power. I'am confused
    The rms power is the average power over a whole cycle. I would think it would be a similar formula for rms real power or rms apparent power. This site may help. True, Reactive, and Apparent power :...
    Liked On: 05-29-2014, 10:13 PM
  6. julian403
    julian403 liked post by tk421 On thread : radiation pressure
    Momentum is conserved, so I'm confused by much of what you wrote above (and I think you've confused yourself, too). :) Radiation pressure is a necessary consequence of momentum conservation. ...
    Liked On: 04-05-2014, 02:08 PM
  7. julian403
    julian403 liked post by tk421 On thread : Electric generator
    Well, it's a little hard to see for sure from the figure, but it does seem that you reverse the winding sense from one coil to the next. That's exactly what you want, since the magnets are also...
    Liked On: 02-26-2014, 10:33 PM
  8. julian403
    julian403 liked post by mvb On thread : virtual displacement
    Virtual displacements are usually encountered only when you are using a minimization principle to determine the equations of motion of a system. The idea is that you write an expression for the...
    Liked On: 01-03-2014, 10:16 PM
  9. julian403
    julian403 liked post by Jilan On thread : virtual displacement
    Yes, the coordinates x,y and z are being replaced by one parameter q.
    Liked On: 01-03-2014, 03:48 PM
  10. julian403
    julian403 liked post by Markus Hanke On thread : doubt Maxwell equations and EM waves
    That is because the integral relation you have written down is ultimately just an application of what is called the generalised Stokes Theorem; that theorem gives us a geometric relation between...
    Liked On: 09-06-2013, 04:26 PM