wipasodaJul 19, 2023

Sign language is just radio communication but on another frequency

https://lemmy.world/post/1766017

Sign language is just radio communication but on another frequency - Lemmy.world

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

Show threadmyklJul 19, 2023
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 😀
Show threadjonatan83Jul 19, 2023
Alas, RADAR relies on transmitting and then reading the reflected waves.
Show threadskillissuer
unless you’re communicating by waving glowsticks, it’s passive radar
Jul 19, 2023 at 10:05amWeb