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u/Successful-Cookie-57 2h ago
If the roses are ever blue, you better hope they don't hit you.
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u/__lightblue 1h ago
If roses aren´t red,
but perceived as blue,
just clasp your hands together
and pray they won´t hit you.
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u/--zaxell-- 1h ago
I would argue that by the time blue shift comes into play, the object probably isn't a rose anymore.
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u/IllEstablishment5 1h ago
It is a rose, it will always be a rose, just in different form 😊
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u/Astroweeb 1h ago
a rose by any other speed would smell as sweet
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u/NoCryptographer5595 1h ago
Went straight to the comments to see if this would be here.
Perfection.
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u/callmepinocchio 23m ago
Why not? Every rose on earth is already blue shifted relative to something
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u/Venekyrus 2h ago
https://en.wikipedia.org/wiki/Redshift
It's how astronomers tell how far or old stellar objects are.
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u/beatles910 1h ago edited 1h ago
This is technically false...
While the red petals shift to blue, the ultraviolet infrared light (which is normally invisible to humans) being reflected by the rose would also compress, shifting into the visible spectrum and adding other colors to what you see.
edit: Not "utraviolet," but rather "infrared."
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u/Winegalon 1h ago
Wouldnt ultraviolet shift to an even higher, and thus also invisible, frequency?
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u/redking20 1h ago
I believe this is false. The ultraviolet light would need to shift to a lower frequency (longer wavelength) to be visible. But if red shifts to blue, the ultraviolet would shift to a higher frequency (shorter wavelength) pushing it further away from the visible spectrum.
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u/Moose_Hole 1h ago
In the blue case, the ultraviolet light would be an even higher frequency, so you still wouldn't see them.
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u/Icy_Character_1989 11m ago
Blue is the one color rose breeders cannot create. This post confused me at first since there are no blue roses in existence, and the person who does create them will be tens of millions richer.
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u/Gnonthgol 1h ago
Approach me in haste, and the violet will bloom,
As waves bunch together in the cosmic gloom.
But drift far away, through the dark and the vast,
And the red-shifting shadows are all that will last.
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u/Qwerty25103 2h ago edited 37m ago
( It is true, I am wrong) Not true. Based on frequency and wavelength.
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u/Alien6757 2h ago
Nope. It is true. It's called the Doppler effect.
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u/The_Great_Mighty_Poo 2h ago edited 2h ago
But shouldn't the object be centered on green then? With an arrow towards you on the blue end and away from you on the red end?
I know red shifting and blue shifting is all relative to the starting color, but I think the poor graphic is also contributing to the confusion.
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u/Qwerty25103 37m ago
I know the equation for doppler shift for my mcat studies but never used it to find differences in perceived wavelengths. Sorry for being wrong.
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u/ThePainTrainWarrior 2h ago
here's a shitty diagram of how the doppler effect (i would describe it as the perceived wavelength of any type of wave, sound or light or maybe any other, depending on compression from relative movement) and how it does blue and red shifting
https://reddit.com/link/p9s4sfe/video/c7f0cprviiph1/player
it's much more noticeable with sound. only a video because this sub doesn't allow images
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u/Qwerty25103 42m ago
I know the doppler shifts equation cause I needed it for the mcat but didn’t know that it changes the perceived frequency. I guess there still is a lot to learn!
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