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"Contrary to a 'horseshoe' theory, the evidence reveals increasing antisemitism moving from left to right." (64.media.tumblr.com)

submitted 5 months ago by [email protected] to c/[email protected]

183 comments fedilink hide all child comments

Hersh, Eitan; Royden, Laura (25 June 2022). "Antisemitic Attitudes Across the Ideological Spectrum" Political Research Quarterly.

doi:10.1177/10659129221111081

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[–] [email protected] 11 points 5 months ago* (last edited 5 months ago) (1 children)

A mix of every color in pigment is black because it absorbs every color wavelength of light so no color is reflected back to your eyes. All the things like vantablack are doing is trying to get the amount of light reflected back off the object to your eyes to be completely 0. Visible, or otherwise.

You're focusing entirely on the light aspect, forgetting that pigments and light work together to create what we understand as color.

[+] [email protected] -9 points 5 months ago (1 children)

Any pigment can be black depending on the lighting, but only black can be black in full light.

They are only 99.995% of the way to that using the carbon fibre pigment I described.

Not a mixture of every colour.

[–] [email protected] 6 points 5 months ago* (last edited 5 months ago) (1 children)

Any pigment can be black depending on the lighting

No... Just because there isn't enough light to illuminate the object doesn't mean its pigmentation is black. Would you say that an object that is red becomes black if you close your eyes or turn off the lights?

The reason an object is black in full lighting is because it's absorbing all the wavelengths of colored light you can see due to its pigment containing all of those colors. That's why we have black objects that we can see and call "black." Because they're black.

Also, just because I am curious: What do you think a black light is/does?

[–] [email protected] -5 points 5 months ago (1 children)

If I gave you a black and a red ball in the dark you couldn’t tell me which is which.

If you gave me a ball painted with a conventional ’black’ paint and one that was painted with the pigment I described previously in full light I could.

[–] [email protected] 3 points 5 months ago* (last edited 5 months ago) (1 children)

If I gave you a black and a red ball in the dark you couldn’t tell me which is which.

With my naked eyes? No. Because I can't see. But if you put them in a room I couldn't see and gave me the tools to analyze their molecular structure in a room I can see in, I could. (Or well, someone who knows how to use the equipment and read the measurements could anyway lol)

[–] [email protected] -2 points 5 months ago

I wouldn’t need any special tools or tool-deciphering experts.