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Sign language is just radio communication but on another frequency (lemmy.world)

submitted 1 year ago* (last edited 1 year ago) by wipasoda@lemmy.world to c/showerthoughts@lemmy.world

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Because you use light to communicate in sign language, and light is just an electromagnetic wave like radio but on another frequency. You just need to be in line of sight

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[-] Lux@lemmy.blahaj.zone 12 points 1 year ago

Ok, but technically, it would actually be more like LIDAR, since we use visible light rather than radio waves

this post was submitted on 19 Jul 2023

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