this post was submitted on 09 Nov 2025
904 points (97.8% liked)
Comic Strips
20212 readers
1195 users here now
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).
- Politeness.
- AI-generated comics aren't allowed.
- Adult content is not allowed. This community aims to be fun for people of all ages.
Web of links
- !linuxmemes@lemmy.world: "I use Arch btw"
- !memes@lemmy.world: memes (you don't say!)
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
How come no matter what color the shampoo is the lather is always white??
Ooh, I like this one! I think it's for the same reason that liquids like egg whites, sea water, and even some broths can be clear when at rest but opaque when frothy. And the reason for that is the same as the reason why a straw in a glass of still water looks like it's broken: refraction!
So, when light enters or leaves a medium at an angle, it is bent by the transition between the medium it's entering and what it's leaving. And it's not a lossless process; some of the light that reaches the boundary is reflected instead by the medium, some is reflected internally, and some is absorbed by the medium.
With a single large bubble, you wouldn't notice this; the boundary is tiny, there's way more of one medium (air) than the other (soap), and the bubble's shape means that the light actually tends to bend back to its original trajectory again coming out. But if there are many, many thousands of tiny bubbles, with pretty similar amounts of soap and air, some sharing boundary layers so that light can enter and leave at different angles, reflecting light all over the place and refracting it from everywhere, you're just going to get that reflected mess.
And even if the soap is dyed, that wimpy little amount of dye isn't filtering the color of the light enough for it to overwhelm the combined color of all the other light in the room; which, in most cases, basically average out to white.
oh i know exactly where you're leading with these questions and i am not playing mr hilter.
Because you're always using the shampoo for the same thing, perv.
Its shampoo cum.