Click the button below to use the on-line metronome. Near the bottom of the metronome page, click the red box with a "1" so that all clicks are the same.
Check out these amazing illusions!
When will he reach the top of the stairs? |
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How many black dots do you see between the squares? |
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Testing Your Eye Health with Optical
Illusions
https://onlinedegrees.bradley.