this post was submitted on 05 Feb 2025
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Science Memes

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

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

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

And so does the internal surface of a diamond.