how long has wireless technology existed?

Question by Priestcalling: how long has wireless technology existed?
im watching a cary grant movie called “topper” and in a bar there is a wireless device that controls the music.

which makes me wonder, if Hollywood took time to put the idea in the movie, in the 1930’s, and the twilight zone began having these special devices doing similiar things, albeit in a total fictional sense, how close are we to having satelites that function like the ones in dejavu movie. ?

Best answer:

Answer by quantumclaustrophobe
Well, Marconi came up with the radio, about 1900….

The Nazi’s used a primitive television receiver to guide one of it’s experimental missiles for attacking ships by airplane.

So far, none of these have been able to view back in time.

What do you think? Answer below!