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Astronomy Picture of the Day - The Same Color Illusion
NASA ^ | 18 Dec, 2023 | Image Credit: Edward H. Adelson, Wikipedia

Posted on 12/18/2023 12:42:12 PM PST by MtnClimber

Explanation: Are squares A and B the same color? They are! To verify this, either run your cursor over the image or click here to see them connected. The featured illusion, an example of the same color illusion, illustrates that purely human perceptions in science may be ambiguous or inaccurate, even such a seemingly direct perception as relative color. Similar illusions exist on the sky, such as the size of the Moon near the horizon, or the apparent shapes of astronomical objects. The advent of automated, reproducible measuring devices such as CCDs have made science in general and astronomy in particular less prone to, but not free of, human-biased illusions.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 12/18/2023 12:42:12 PM PST by MtnClimber
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To: MtnClimber

2 posted on 12/18/2023 12:42:35 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; AFPhys; Agatsu77; America_Right; ...
Pinging the APOD list.

πŸͺ 🌟 🌌 πŸ”


3 posted on 12/18/2023 12:43:13 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

Note that you have to go to the image at the link to see the two squares connected. The image posted here does not work.


4 posted on 12/18/2023 12:44:31 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

β€œYou are a slow learner, Winston.”
“How can I help it? How can I help but see what is in front of my eyes? Two and two are four.”
“Sometimes, Winston. Sometimes they are five. Sometimes they are three. Sometimes they are all of them at once. You must try harder. It is not easy to become sane.”
― George Orwell, 1984

β€œThe Party told you to reject the evidence of your eyes and ears. It was their final, most essential command.”
― George Orwell, 1984


5 posted on 12/18/2023 12:46:14 PM PST by Red Badger (Homeless veterans camp in the streets while l aliens are put up in hotels.....................)
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To: MtnClimber

Yeah but move the big green cylinder that is casting a shadow and they won’t be.

Maybe if we install big green cylinders in strategic locations we can end racism.


6 posted on 12/18/2023 2:30:22 PM PST by DannyTN
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