this post was submitted on 11 Jul 2025
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Science Memes

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Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

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submitted 14 hours ago by [email protected] to c/[email protected]
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[–] [email protected] 7 points 1 hour ago (1 children)

Used to?

[–] [email protected] 3 points 43 minutes ago (2 children)
[–] [email protected] 1 points 23 minutes ago* (last edited 23 minutes ago)

dam us government trying to prevent colorful toothpaste

[–] [email protected] 3 points 41 minutes ago

Chuckles, I am in danger

[–] [email protected] 29 points 4 hours ago (1 children)

Wtf is this meme border?

[–] [email protected] 15 points 4 hours ago* (last edited 4 hours ago)

bordering on insanity

[–] [email protected] 1 points 5 hours ago

Haha, my poorly googled current events assignment is highly relevant after all these years! Take that you dork try hards!

[–] [email protected] 20 points 6 hours ago (3 children)

Just mineral or ground rocks work just as well. I hate my wife’s soft face scrub, i need that shit that feels like I’m scrubbing my face with sandpaper, to exfoliate well. They sell one that has ground up lava rock, i love that shit, and it makes me wonder why anyone ever thought plastic bits was a good idea

[–] [email protected] 2 points 1 hour ago (1 children)

Well, rocks in toothpaste would be very bad because they'd be harder than your teeth.

[–] [email protected] 3 points 1 hour ago

Harder? No. Enamel is harder than steel. It is more brittle though so don't go chewing rocks.

[–] [email protected] 5 points 3 hours ago

But lava rock grinds are not part of the industrial waste stream repurposed for profit. This is innovation!

[–] [email protected] 10 points 5 hours ago (1 children)

They probably had some extra plastic to offload lol.

[–] [email protected] 5 points 4 hours ago

“What do we do with all these old bottles sir?”

[–] [email protected] 32 points 6 hours ago (3 children)

It's not what microplasitcs are! Does anyone knows what micro is at this point?

[–] [email protected] 9 points 2 hours ago* (last edited 2 hours ago)

If these aren't microplastics, what are?

"Micro" just means "small" in this case and doesn't mean "microscopic" or have anything to do with "micrometer".

The definition of "microplastic" according to NOAA: "Microplastics are small plastic pieces less than five millimeters long".

[–] [email protected] 23 points 3 hours ago (2 children)

Microbeads are manufactured solid plastic particles of less than one millimeter in their largest dimension.[1] They are most frequently made of polyethylene but can be of other petrochemical plastics such as polypropylene and polystyrene. They are used in exfoliating personal care products, toothpastes, and in biomedical and health-science research.[2]

-Wikipedia

[–] [email protected] 20 points 3 hours ago

To add to this, the definition of microplastic is less than 5mm. So yes, 1mm microbeads are microplastics.

https://en.wikipedia.org/wiki/Microplastics

[–] [email protected] 12 points 3 hours ago (1 children)

Millibeads

[–] [email protected] 7 points 1 hour ago

Centibeads🐛

[–] [email protected] 8 points 4 hours ago

1x10^-6 m.

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