MadJik 963 Report post Posted July 19, 2017 @Seerose You make it with the circle, they are vibrating. Quote Share this post Link to post Share on other sites
Maximilian 1,792 Report post Posted July 20, 2017 2 Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted July 21, 2017 (edited) * Look at the circles around the red dot. Which way do the circles move, clockwise or counterclockwise? (Answer: counterclockwise.) Now look at the circles around the yellow dot. Are they moving clockwise or counterclockwise? (Answer: also counterclockwise.) Edited April 18, 2018 by Seerose 2 2 Quote Share this post Link to post Share on other sites
MadJik 963 Report post Posted July 21, 2017 Interactive illusion with paint.net. You have to follow these instructions: a. start a new image b. run the RainbowTwist with the settings: C. _1 Duplicate the layer _2 Open the layer properties form _3 set blending mode to Lighten d. Press M to activate the move mode e. Press and hold one cursor key... tada! Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted July 22, 2017 @MadJik! I will do that. Thank you for the good tip. Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted July 22, 2017 (edited) *Freezing Rotation Animation (Animated gif below may take a while to load, so please be patient until it full loads.) If you observe the rotation of the central text label below, do you see it turning smoothly all the time? Does it seem to “freeze” from time to time? If you manage to cover or isolate the surround (swaying dots), you can easily see that the text is really turning continuously! One possible explanation of this phenomena states that “assuming a stable surround, our visual system probably uses the surround as a reference to measure motion of the included objects”. Edited April 18, 2018 by Seerose 1 Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted July 22, 2017 (edited) *Circle from side *Wave circles Edited April 18, 2018 by Seerose Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted July 25, 2017 (edited) *ChalkDrawingOfMan *Man Face Painting Edited April 18, 2018 by Seerose 1 Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted July 30, 2017 (edited) Edited April 18, 2018 by Seerose Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted August 9, 2017 (edited) Edited April 18, 2018 by Seerose 2 Quote Share this post Link to post Share on other sites
MadJik 963 Report post Posted August 12, 2017 Re-done an image from http://math.univ-lyon1.fr/irem/spip.php?article683 Using this unique form with rotations (Nothing else but the white background). Result: 2 Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted August 13, 2017 @MadJik! The result is simply top. Thank you for the sharing. Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted August 15, 2017 (edited) Edited April 18, 2018 by Seerose 1 Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted August 16, 2017 (edited) Edited April 18, 2018 by Seerose 2 Quote Share this post Link to post Share on other sites
MadJik 963 Report post Posted August 18, 2017 Previous with "moving" colors Ten years ago: My DeviantArt Optical confusion for this illusion made with Paint.Net You could feel the wheel is rotating. The background grid is strictly made with straight lines but you could think there is a curvature near the center: no no! 2 Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted August 28, 2017 @MadJik! Fabulous, thank you so much for sharing. Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted August 28, 2017 (edited) *Do the see any movement in the water flowing through those taps? If you see any one water flow from the pipe then you will see that water in other taps is coming at a much slower rate. Edited April 18, 2018 by Seerose Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted August 29, 2017 (edited) *Canada Flag - Oh Canada! Simply stare 30 seconds at the center and then onto a white surface. *USA Flag - What's going on with Canada ... stare at it for 30 seconds and then on a white surface. Edited April 18, 2018 by Seerose Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted September 4, 2017 (edited) *Cutouts reveal several levels of illusory motion. *Magic Hen Who stole the egg from Chiquita our favourite chicken? As you can see on the 4-piece puzzle in A, there are 8 eggs... Now if we permute the triangular pieces an egg disappears along with portion of the puzzle (see B)! Well, this is a kind of 'vanishing area paradox'... Edited April 18, 2018 by Seerose 1 Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted September 10, 2017 (edited) *COLOR CUBE Believe it or not, but the pieces A/B/C all have the same color. Use any color picker, graphic program or simply cover the remainder with your hand to see for yourself. *BrokenMagic If you concentrate on one of the lobster's eyes, after some time (10-15 seconds) it will seem that the broken piece of the plate rejoins the rest. This amusing effect occurs because our brain tends to 'iron' out broken our saw lines. Edited April 18, 2018 by Seerose 1 Quote Share this post Link to post Share on other sites
dipstick 865 Report post Posted September 10, 2017 I made this with this free software: https://people.eecs.berkeley.edu/~sequin/SCULPTS/scherk.html 3 Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted September 11, 2017 Good job as always @dipstick! Thank you very much. Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted September 11, 2017 (edited) *Magic Tray Just turn the image upside-down and the wine glass will be seen standing outside the tray (restore the picture). This illusion was invented by G. Sarcone for a science festival on optical. *Reversed faces Find the differences between the boys. If you can't, turn the picture upside-down. Edited April 18, 2018 by Seerose 1 Quote Share this post Link to post Share on other sites
Seerose 3,964 Report post Posted September 14, 2017 (edited) *Courtyard Probable thing that occurs when you live in an improbable building... Edited April 18, 2018 by Seerose 2 Quote Share this post Link to post Share on other sites
dipstick 865 Report post Posted September 18, 2017 I call this one "Warp Drive". I made it with the cool, free s/w I linked to in my last post. 2 Quote Share this post Link to post Share on other sites
