7 optical illusions

1

I have just created a new Quirkology video – this one has some rather unusual illusions in it, including a lovely colour-changing ring and some vanishing pencils. I hope you like it – what is your favourite one?

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One comment on “7 optical illusions

  1. John Simpson says:

    So what’s the name of the ring that changes color in the mirror and where is it available?

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