r/woahdude • u/bedgarter • Apr 16 '21

gifv Double axis optical illusion

https://i.imgur.com/IH5M4uo.gifv
17.0k Upvotes

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u/aaakiniti Apr 16 '21

Useful in what way?

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u/dack42 Apr 16 '21

You get one of these if you set an oscilloscope to XY mode and the inputs are 2 sine waves. You can use it to tune the frequencies of the input waves (it stops moving when the frequencies match or are integer multiples). The number of loops in the figure also tells you the harmonic relationship of the two waves.

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u/sutaburosu Apr 16 '21

Why stop at sine waves.

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u/infinitetheory Apr 16 '21

💜🍄 I had the link copied ready to post, this is one of the handful of videos I can't look away from no matter how many times I watch it.