Disappearing Dot Illusion

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

Put your face close to the screen and stare at the black cross in the center. Eventually, you will see a green dot. After that, all the purple dots will disappear. This effect is known as Troxler's fading [1].

Contributed by: Ed Pegg Jr (September 2007)
Open content licensed under CC BY-NC-SA


Snapshots


Details

Reference

[1] Wikipedia, Troxler's fading.



Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.
Send