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19/11/2004 11:42:19
 
Information générale
Forum:
Politics
Catégorie:
Autre
Divers
Thread ID:
00952285
Message ID:
00963000
Vues:
32
>But is not what I wanted. Planck said something about the relationship between time and the wavelenghts of quanta. As time moves forward, the wavelengths increase.

Right. A wave has two important properties: frequeny and wavelength.

But really, they are the same property, just inversely related. As the shorter the the distance between two crests of the wave (wavelength) the more crest-to-crest portions of the wave will exist (frequency).

Helps to show it visually:
--    --    --  
  |  |  |  |  |  |
  |  |  |  |  |  |
   --    --    --
This wave has a wavelength of 4 dashes and it repeats 3 times, so we'll say its frequency is 3.

We'll take the same wave and use a longer wavelength:
----      ----     
    |    |    |    |
    |    |    |    |
     ----      ----
When we increase the wavelength, in the same amount of space the wave repeats less, so it has a lower frequency. Since frequency is 1/time then it is the inverse of time. So, yes, as the time goes up, so does the wavelength.

I don't think this has anything to do with what Planck said. This is simply wave physics that has existed for sometime before Planck.

What Planck and Einstein were able to tell us is that light works like this wave, and it delivers its energy in a single wavelength "chunk" called "quantum." The energy a wave delivers is always one quantum (the value "h" which is Planck's constant), two quanta (2h), three quanta (3h) or N quanta (Nh) where N is a positive integer.
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