exploited when he was here in colorado springs was he was understand whether the earth had enough resnick that you could directly radio signals through the earth to get a transmission to the other side of the globe. that was one of the things he was exploring here and he left colorado springs thinking that this was a possibility because did find some resonant capacity of the earth. unfortunately, it is not resonant enough. then the intergalactic signals referenced a phenomena that he experienced when he was here. he heard some very mathematically precise and repeated radio bursts when he with his large receivers and felt that the he could come n to was that it originated from sign of that it was a intelligent life because there was a sign of regularity. back tists, later on, came and replicated the experiment -- which comes in these very regular mathematic, predictable bursts. so you can hear that space noise transmitted to the rock and space. >> tesla was friends with a man named leonard curtis and he knew some of the experiments that tesla wanted to conduct. so he invited him to come he