Sorry for no updates yesterday. Still in rush and figuring which apartment to rent, so hope you’ll forgive. About today’s Poggendorf illusion – it is one of the most famous distortion illusions known. Although much has been written about it since its discovery in 1860, the underlying mechanism that gives rise to this effect is still not well understood. An adequate explanation of the Poggendorf illusion must take all the above factors into account, as well as several others. For example, the Poggendorf illusion is not confined to two-dimensional representations: It also occurs with three-dimensional objects. Secondly, perspective cues can have a drastic effect on diminishing the effect of this illusion. It’s interesting to know that the Poggendorf illusion is over 100 years old, there have been no end of theories to try to account for it. To show you what I mean, here are some examples inside this article. Try and guess which of the 4 parallel lines on the right is the logical extension of the red line on the left. Visual explanation, and more examples inside!
all were attatched 2 the 1 b4 the last… kinda boring. first?
it’s a harder angle to determine the outcome of the problem. ( yes i said harder ) Knowing that i am programmed to handle this type of data on a daily horizontal or vertical bases. I will make an adjustment and tilt my head 45 degree’s haha Poggendorf your not tricking me. Orientation illusion cracked…
cool
=)
:)
;)
2 out of 3 I only missed the last one I actually got the first 2 right
It’s hard not to point it out with your finger O.o
wow, i guessed… and got it completly wrong. that illusion is so wierd… luv it!
Now was that a paragraph illusion? because you filled it with so many BIG words we might not notice your poor punctuation and spelling? It’s Basis, and Degrees.
I always get these wrong!
haha I did the same thing nud. It was very easy – hardly an illusion.
i agree, it was kinda boring.
it was boring because its always easy to guess that somehow these are going to fool you and then you guess correctly.
How r u updating without an apartment?
i got the first two right but not the last one. cool illusion though
haha, nud i did the same: no chance for poggi to disturb me!
I think the first one works the best because you automatically assume the rest of the line to be red. That’s why I chose the yellow one… But I was still wrong… I think the colors definitely play a large role because the monkey one was the only one I got right. Super cool illusion; it’s awesome knowing it’s such a mystery.
I've liked the Pogendorf illusion since i first saw it:) it's very entertaining, better when there's more than one person trying to do it though, humph!:P lol – although once you've done maybe 2, you get the gist of whats going on and can better work out which is the correct one, without using a ruler or your hand :P… i got 2 of these right, the one with the WHITE one starting i didn't get, i chose red… instead of yellow ;) although i did it quite fast :P
Thanks for sharing. && Pick the cosiest apartment;)
YEP all ya have to do is tilt your head!
It’s easy, well relatively. Just tilt your head to the left and you can figure them out. I got them all.
The first two were tricky for sure, but the last one absolutely through me for a loop… I thought it lined up higher than it actually did, where with the first two I believed it lined up lower.
Cool, but not as good as the last.
I don’t see the illusion. I got all of them right without trouble…
cool :)
no way dis is sooooo rokkin awesome!!!!!!!
HAHA! I got them all right! :D
The beauty of this illusion does appear to dissapear when one tilts their head – it does become much easier to match the lines. In Encyclopaedia Britanica, I found this comment: “The Poggendorff illusion depends on the steepness of the intersecting lines. As obliqueness is decreased, the illusion becomes less compelling.”
I suspect that by tilting the head, you are in effect adjusting the “steepness” of the lines and defeating the illusion.
So if you want to trully appreciate Poggendorf’s illusion as it was intended, keep your head straight — and no artificial aids!
#7 is just plain rude. And I don’t see anything confusing in his paragraph.
i like the illusion but your toolbar is annoying!!
thats pretty cool but wierd…. :P
Nice images really!
I got them all right!
LOL I got it all right!! :D Plus, I’m only Eleven! :)
I don’t get it.
I DON’T GET IT! HELP…….
lame
very werid
Very cool. The fishing sign where I got this link from fooled me. Kinda knew what to look for after the first link but still got the last one wrong (didn’t tilt head). Picked green. Still fun to do. Good job finding all these illusions! And I agree about rudeness, rude people stay off here unless you have time to do this yourself.
i wish ALL illusions had the solutions posted or linked to. :)