Comment on Roses

TowardsTheFuture@lemmy.zip ⁨3⁩ ⁨weeks⁩ ago

• gandalf_der_12te@feddit.org ⁨3⁩ ⁨weeks⁩ ago

  assuming we want the frequency to double,

  going by this formula: en.wikipedia.org/wiki/Redshift

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  with the wavelength ratio 1 + z we want 1 + z = 1/2 so v/c = -3/5 c = -0.6c if i calculated correctly (i did this in my head without a napkin), where the source moves away from the observer with velocity v. so it would have to move towards you quite rapidly.

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  • Johanno@feddit.org ⁨3⁩ ⁨weeks⁩ ago

    0.6 *300 000 km/s =180 000 km/s

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    • Slovene85@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago

      How many freedom units is that?

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      • ranzispa@mander.xyz ⁨2⁩ ⁨weeks⁩ ago

        Greater than the cumulative speed achieved by 20,000 horses fed with 3 canisters of barley.

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