Comic Strips

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Comic Strips is a community for those who love comic stories.

The rules are simple:

The post can be a single image, an image gallery, or a link to a specific comic hosted on another site (the author's website, for instance).
The comic must be a complete story.
If it is an external link, it must be to a specific story, not to the root of the site.
You may post comics from others or your own.
If you are posting a comic of your own, a maximum of one per week is allowed (I know, your comics are great, but this rule helps avoid spam).
The comic can be in any language, but if it's not in English, OP must include an English translation in the post's 'body' field (note: you don't need to select a specific language when posting a comic).
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Adult content is not allowed. This community aims to be fun for people of all ages.

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lawrence

377

Doppler Effect (xkcd.com)

submitted 6 months ago by [email protected] to c/comicstrips

17 comments fedilink hide all child comments

The Doppler effect is a mysterious wavelength-shifting phenomenon which seems to primarily affect sirens, which is why the 🚨 emoji is red.

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[–] kernelle 11 points 6 months ago

Yeah I'm no physicist but that ticked me off, the speed of light is the same for any wavelength. As for redshift:

a redshift is an increase in the wavelength, and corresponding decrease in the frequency and photon energy, of electromagnetic radiation (such as light).

Speed of light isn't a factor in this, also when galaxy's move towards us (like the Andromeda galaxy) it is blueshifted, proving it's not the light that matters, but rather the direction of movement of the source. Proving the doppler effect.