3 Simple Ways to
Share What You Make

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PhotosPhotos

Share one or more photos of a project, recipe, or whatever you've made, quickly and easily.

Step by StepStep-By-Step

Share your step-by-step photos with text instructions of what you made so others can do it too!

VideoVideo

Share your how-to video. You'll need your embed code from a video site such as YouTube.

Shady Optical Illusion

Step 3Presenting the Illusion

Presenting the Illusion
Now that a finished product is in hand, it's time to present the illusion to yourself and/or to others. This is the best part!!

Place the pencil over the transition border between the first two shades of blue on the far left. It will amazingly appear that the first two shades of blue are exactly the same! The same visual phenomenon will hold true when the pencil is moved to the border between the second and third shades. Finally, move the pencil to the transition border between the third and fourth shades. Each time a border is covered, the eye perceives the neighboring shades as being identical. Clearly they are not.

Again, here is the video that shows the illusion being performed. Enjoy!:


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