faces and then the bill would move saying you could move it at one end and at the other end like a ouija board. [laughter] >> host: i am surprised it did not catch on. >> telegraphs did work that way and you can see it is more clunky. on the other hand, if you were just sitting down and heard the two systems described you may think anybody can do anything with needles behalf to learn the entire code. we'll humans be able to learn morse code? it is difficult yet we know that they did. 10 sears's -- tens of thousands of telegraph operators write-up to our air there were plenty of people who knew morse code now we know it is a vanishing skill but a few people maybe watching us. [laughter] >> how long does it take to learn morse code? is it learning to type? >> i don't know. i take it you didn't see their? >> but we know it is the skilled people at internalize and you could listen to the clatter of the telegraph sound to hear it translated they're as good at understanding that and you could understand the message we also know that people have distinctive signatures to recognize the voice of a part

the needle at one end of the wire and would move that the other end of the lawyers sort of like a ouija board. there were telegraphs in england that worked that way for a while. on the other hand, if you heard these systems described, you might be forgiven for thinking anybody can use the thing with of the needles but the other you have to learn in the code are humans actually going to be able to learn to morris code? it is difficult and abstract yet we know that the -- they did. right up until our era of there were plenty of people who knew morris code and now there is a vantage, we know it is a vanishing skill but there might be a few people watching who are jumping up and down and saying i still need more us code, but i don't. >> host: how long does it take to learn more rusco? is it like learning to type? >> guest: i never learned it. i take the you didn't either. but we know that it is a skill people internalize and became second nature very quickly. you could listen to the clatter of telegraph sound over the wires and just tear it translated in your head fluently. people who are fluent