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Because it's Friday: The Shepard Tone

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I haven’t seen the Dunkirk movie yet, but the video below makes me want to see it soon. It turns out it contains an auditory illusion: the “Shepard Tone”, which sounds like it’s continually rising but really isn’t. (It turns out that many of Christopher Nolan’s past movies have included it as well.) There’s more explanation in the accompanying article at Vox. That’s it from the blog for this week. Have a great weekend, and see you back here on Monday.
Original Post: Because it's Friday: The Shepard Tone