🚀 go-pugleaf

On May 21, 1:01 am, Pentcho Valev <pva...@yahoo.com> wrote:
> On May 20, 11:22 pm, PD <thedraperfam...@gmail.com> wrote:
>
>
>
> > On May 20, 12:57 am, Pentcho Valev <pva...@yahoo.com> wrote:
> > > Scientists should try various rescue operations; one of them could
> > > consist in strict adherence to the following postulates:
>
> > > Postulate 1: (frequency) = (speed of light)/(wavelength)
>
> > > Postulate 2: The wavelength of light is constant.
>
> > > Postulate 1 is a universally accepted textbook formula but Postulate 2
> > > needs some justification. Consider this:
>
> > There is no point in trying to justify a postulate that is directly
> > counter to experimental evidence. A diffraction grating is a device
> > that is directly sensitive to wavelength. It's as reliable as holding
> > up a stick with marks on it to measure the length of a stationary
> > object.
>
> > The diffraction grating establishes unambiguously that the wavelength
> > of light is NOT constant, no matter how badly you want it to be so.
>
> Clever Draper, do you suggest experiments can confirm that the
> wavelength of both ocean waves and light waves varies with the speed
> of the observer while the speed of the waves relative to the observer
> remains constant:

As I said, the diffraction grating is a *direct* measuring instrument
for wavelength.
If you do not know how a diffraction grating works, then I'm sure you
can google it.

>
> http://sampit.geol.sc.edu/Doppler.html
> "Moving observer: A man is standing on the beach, watching the tide.
> The waves are washing into the shore and over his feet with a constant
> frequency and wavelength. However, if he begins walking out into the
> ocean, the waves will begin hitting him more frequently, leading him
> to perceive that the wavelength of the waves has decreased."
>
> http://www.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/big_bang/ind...
> John Norton: "Here's a light wave and an observer. If the observer
> were to hurry towards the source of the light, the observer would now
> pass wavecrests more frequently than the resting observer. That would
> mean that moving observer would find the frequency of the light to
> have increased (AND CORRESPONDINGLY FOR THE WAVELENGTH - THE DISTANCE
> BETWEEN CRESTS - TO HAVE DECREASED)."
>
> Pentcho Valev
> pva...@yahoo.com