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

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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[-] mykl@lemmy.world 93 points 1 year ago

Really, radio communication is about creating and transmitting those radio waves. Sign language relies on reflected light waves so it’s actually a form of RADAR 😀

[-] undyingarchie@lemmy.world 35 points 1 year ago

I’ll have what you and OP are having.

[-] callyral@readit.buzz 1 points 1 year ago

what if i attach light bulbs to my hands

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this post was submitted on 19 Jul 2023
164 points (88.0% liked)

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