A rotating black-and-white disk produces the illusion of color.

When this black-and-white pattern rotates at the right speed, the pattern appears to contain colored rings. You see color because the different color receptors in your eyes respond at different rates.

You can use slider to change period T of the rotation and frame per second (fps) for the simulation.

translate strings in simulation to different language format before download
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
Download EJS jar file(973.2kB):double click downloaded file to run it. (8 times by 8 users) , Download EJS source View EJS source


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