Albert Einstein,
when
asked
to
describe
radio, replied:
"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."
