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OT: help me find this
If any of you remember the old science museum, they had a sort of small booth, where it looked like there was an inverted clear bowl you stood under. While standing under the clear bowl, you could hear music or whatever audio was being played, however the person standing directly next to you, but not under the clear bowl, could not hear a thing.
Anyone know what this is called or have a link to it. I need one for a project I am working on.
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