282. なかやま[60] gsiCqYLigtw 2024年5月24日 16:18:25 : aXw6DxRYeU : akZwTG1Xc0pMZ1E=[1]
Wavelength Measurement (Aw) (クリ)
Is wavelength of light traveling in outer space being measured as it is (on light before arriving) ? Isn't what is being measured light (extincted light) that has passed through a medium such as glass ? In internet (a bit), any site mentioned can not be found.
Suppose an observer moving in various motions in outer space is measuring wavelength of starlights. In the formula, c = f λ, f varies. Accordingly, c varies. However, we seem to believe, it is λ that varies.
We must distinguish the light before and after measurement device (before and after extinction).
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