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Questions tagged [optical-illusions]

for questions about claims based on optical illusions, a phenomena where a visual perception differs from reality.

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6 votes
1 answer
2k views

Is this an authentic image of a UFO sighting in Canary Islands (1976)?

According to Wikipedia, a strange 40 minute unidentified flying object or an unexplainable phenomena occured on June 22, 1976 in the Canary islands. The phenomena (object) was observed in multiple ...
Maria Kuznetsov's user avatar
64 votes
3 answers
13k views

Is this popular optical illusion made of a grey-scale image with coloured lines?

A tweet from Lionel Page (@page_eco) showing an optical illusion recently went viral, with the image appearing in many aggregation web-sites: This is a black and white photograph. Only the lines have ...
Oddthinking's user avatar
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7 votes
1 answer
1k views

Was a mirage involved in the Titanic's sinking?

I watched a documentary, Titanic's Final Mystery. It premise is summarised by this Smithsonian Magazine article. An unusual optical phenomenon explains why the Titanic struck an iceberg and ...
bleh's user avatar
  • 1,571
2 votes
0 answers
292 views

Are the lips of this illumination of St. Mary moving?

The Mirror reports that a video of footage of an illumination of St. Mary, at St Charbel's Church in Sydney, Australia, appears to have her her lips moving to a prayer: I'm skeptic... but I don't ...
Apeforce's user avatar
17 votes
1 answer
2k views

Is this dress blue and black in colour?

Buzzfeed, and other social media, are buzzing about this image: When I see this image, I can only see a gold and white dress. However, others claim that the dress is actually black and blue in colour....
JP Janet's user avatar
  • 305
7 votes
1 answer
13k views

Is Sandro Del-Prete's "Message d'Amour des Dauphins" a pervert test?

You may have seen this image on the web or in an email with the following description: Scientific research showed that children can’t recognise erotic scenes. Instead they see 9 dolphins. On the ...
Soup's user avatar
  • 211
20 votes
1 answer
1k views

Is there any scientific evidence that this illusion illustrates which side of our brain we use?

http://www.dailytelegraph.com.au/news/weird/the-right-brain-vs-left-brain/story-e6frev20-1111114577583 the newspaper article makes the claim that if you look at the image and the dancer is spinning ...
Samuelson's user avatar
  • 3,781
25 votes
1 answer
8k views

Do vertical stripes make you look thinner?

It is perceived wisdom that vertical stripes on clothing make a person look thinner and horizontal stripes make them look fatter. Has any research been done into these optical illusions that support ...
Richard Stelling's user avatar
31 votes
4 answers
2k views

What is the commonly accepted mechanism that causes people to experience pareidolia?

I often see cases of pareidolia reported in the news, on blogs, and even here. I think remember reading in Demon Haunted World by Carl Sagan that this had an evolutionary origin (i.e. if you see a ...
Larian LeQuella's user avatar
20 votes
2 answers
2k views

Is the "Face on Mars" an artificial structure?

Is the famous image of a face on Mars a trick of the light or an artificial structure reprinting a face?
Richard Stelling's user avatar