this post was submitted on 05 Feb 2025
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Science Memes

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[–] Soleos@lemmy.world 74 points 1 month ago (2 children)
[–] Akasazh@feddit.nl 6 points 1 month ago (1 children)

Einstein was clearly no etymologist

[–] caseyweederman@lemmy.ca 5 points 1 month ago

I can never remember the difference between etymology and entomology and I can't put into words how much that bugs me.

[–] TheEighthDoctor@lemmy.zip 1 points 1 month ago (2 children)

Well awktshualy...the definition says reflect, and while diamonds reflect internally, they refract light externally, so, the diamond is not bright because it reflects (those reflections are on the inside) they shine because they refract

[–] stephen01king@lemmy.zip 2 points 1 month ago (1 children)

But isn't their shine mostly due to the internal reflection rather than external refraction? That's why the gems are cut angularly, to help with the internal reflection.

[–] TheEighthDoctor@lemmy.zip 1 points 1 month ago (1 children)

You can only observe the external properties since you are on the outside

[–] stephen01king@lemmy.zip 2 points 1 month ago (1 children)

By that logic, glass mirrors also work by refraction, because it refracts out of the glass before it reaches your eye.

[–] TheEighthDoctor@lemmy.zip 1 points 1 month ago (1 children)
[–] stephen01king@lemmy.zip 2 points 1 month ago

And so does the internal surface of a diamond.

[–] Soleos@lemmy.world 2 points 1 month ago

Well awktshualy, read the whole definition entry. Pendants are always so eager to ignore lay meanings.

[–] bjoern_tantau@swg-empire.de 44 points 1 month ago* (last edited 1 month ago) (3 children)

Albert knows that they actually do shine. This meme could only have been more wrong if it was Plank.

[–] wolframhydroxide@sh.itjust.works 12 points 1 month ago (1 children)

Yet another way this is wrong: the primary cause of the adamantine lustre of diamonds is refraction. Any old hunk of metal can reflect light.

[–] stephen01king@lemmy.zip 2 points 1 month ago (1 children)

Isn't it caused by internal reflection? That, by definition, is what happens when the light doesn't refract out of the diamond.

[–] wolframhydroxide@sh.itjust.works 1 points 1 month ago* (last edited 1 month ago)

I considered that when posting, though the play of prismatic colors which defines the diamond's unique lustre, in addition to that same tendency toward internal reflection, are both ultimately caused by the extraordinary refractory properties of the crystal structure, and the refracted light coming out of the diamond after internal reflection is the constituent of the "shine"

[–] DoYouNot@lemmy.world 10 points 1 month ago

Rhianna and Einstein both know something about black bodies.

[–] mnemonicmonkeys@sh.itjust.works 4 points 1 month ago

Albert knows that they actually do shine. In infrared

[–] TransSynthesist@lemmy.blahaj.zone 25 points 1 month ago* (last edited 1 month ago)

Unless they're a crazy diamond. They shine on!

[–] corsicanguppy@lemmy.ca 15 points 1 month ago (2 children)

If a post labeled, essentially, 'idiot', has two English mistakes in glurge written for a genius, is that irony?

[–] yesman@lemmy.world 12 points 1 month ago

Nothing is more on brand than a language pedant making grammar mistakes. What do you expect of person who thinks memorizing rules is the hallmark of intelligence?

[–] fossilesque@mander.xyz 7 points 1 month ago (1 children)

Like rain on your wedding day.

[–] P00ptart@lemmy.world 6 points 1 month ago (2 children)

If that gets stuck in my head I'm gonna be so fucking mad.

[–] MedicPigBabySaver@lemmy.world 3 points 1 month ago

A free ride, when you already paid.

[–] psx_crab@lemmy.zip 11 points 1 month ago

I mean, "Shine bright like a 120w LED light bulb" doesn't sounds good.

[–] FiskFisk33@startrek.website 11 points 1 month ago

The "shining" nature of diamonds is not due to their reflective properties, it's due to how they refract.

[–] culpritus@hexbear.net 9 points 1 month ago (1 children)

picard

Diamond also has a very high refractive index and a relatively high optical dispersion.

[–] Swedneck@discuss.tchncs.de 3 points 1 month ago* (last edited 1 month ago)

i mean, they reflect too, everything reflects, though we generally mean specular reflection but diamonds have that too when they're polished nicely.

[–] justme@lemmy.dbzer0.com 8 points 1 month ago

Everything shines, everything reflects...

[–] Gold_E_Lox@lemmy.world 6 points 1 month ago

boomer meme that i probably upvoted on facebook in 2012

[–] rainerloeten@lemmy.world 4 points 1 month ago

Didn't SIA wrote it and allegedly in like 30 minutes or so?

[–] TastyWheat@lemmy.world 4 points 1 month ago
[–] IsoSpandy@lemm.ee 3 points 1 month ago

How about shine like a quasar