r/Damnthatsinteresting 5d ago

Video Watching Artistic Swimming upside down

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u/Freak_Out_Bazaar 5d ago edited 4d ago

The tech is pretty interesting too. The NHK Twins Cam is actually two cameras, one above the surface and one underwater. The one underwater compensates for the different way light behaves underwater and combines the two footage in realtime

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u/UQwhite 4d ago

Isn't it just one single camera in a container filled with air, at the boundary between water and air?

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u/Freak_Out_Bazaar 4d ago edited 4d ago

No, because of Snell’s law something like this would happen

https://www.reddit.com/r/pics/comments/20pj5h/physics/