Klänningen

Diskutera fysik, kemi, biologi, samt direkta tillämpningar såsom teknik och medicin.
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cleve
Posts:227
Joined:Fri 26 Jun 2020, 18:12
Klänningen

Post by cleve » Thu 30 Jun 2022, 08:05

Såg en klänning som ändrade färg mellan blå och röd beroende på vilken vinkel som solljuset hade relativt ytan.
Förklara fenomenet !

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Johannes
Posts:4848
Joined:Tue 30 Nov 2004, 14:31

Re: Klänningen

Post by Johannes » Thu 30 Jun 2022, 08:14

Det finns flera olika sätt att få färg att växla beroende på vinkel. Men oftast handlar det om någon variant på principen att det är en mikrostruktur i ytan som skymmer vissa färger i vissa vinklar och framhäver vissa färger i vissa vinklar.

Nemesis
Posts:3442
Joined:Thu 12 Oct 2006, 22:04
Location:Stockholm

Re: Klänningen

Post by Nemesis » Thu 30 Jun 2022, 21:57

Kan det vara denna klänning som avses?
What Color Is This Dress? It’s An Optical Illusion

Image

This is pretty amazing – almost as much for how quickly this has gone viral as for the effect itself. There is now an intense debate going on in the intertubes over whether this dress is black and blue or white and gold. Take a look and decide for yourself. Buzzfeed has a poll which currently puts it at 72% white and gold, and 28% black and blue. Right now there are about 2 million votes, so that is probably statistically significant.

https://theness.com/neurologicablog/index.php/what-color-is-this-dress-its-an-optical-illusion/
Jag ser vitt och guld. Andra ser svart och blått.
"If someone is able to show me that what I think or do is not right, I will happily change, for I seek the truth, by which no one was ever truly harmed." - Marcus Aurelius

dann
Posts:2873
Joined:Sun 24 May 2020, 17:18

Re: Klänningen

Post by dann » Sat 02 Jul 2022, 04:58

What do the pixels say?

Nemesis
Posts:3442
Joined:Thu 12 Oct 2006, 22:04
Location:Stockholm

Re: Klänningen

Post by Nemesis » Sun 03 Jul 2022, 16:28

Jag tror pixlarna säger samma sak oavsett, men att olika människors hjärnor tolkar dem olika. Vilka färger ser du?
"If someone is able to show me that what I think or do is not right, I will happily change, for I seek the truth, by which no one was ever truly harmed." - Marcus Aurelius

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