Your right - but I just had to go check it out. I picked up this other great gem......brilliant minds can simplify the most obtuse concepts....try this one for size! LOL
"You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat."
Priceless!
LOL, well, Einstein was a genius.