Yuan Li watched the letter burn to ashes and stepped forward to ask the communications officer, "Can you explain how this letter was sent from here to the Great General a thousand miles away?"
The communications officer looked confused, "I, I don't know. If Mr. Fu says it can be done, then it can be done. We just have to follow and learn."
Yuan Li frowned deeply, not understanding the reasoning behind it.
What if something goes wrong?
Beside him, Xue Hong quickly said, "I know. Mr. Fu mentioned that the frequency emitted by this machine bounces and propagates between heaven and earth, and the speed is extremely fast, like light. Lightning from a hundred miles away can be seen from here, so the frequency travels and reaches people a thousand miles away."
"When we send out these frequencies, they follow a pattern. When they receive it, they can decode the pattern using the codebook we previously agreed upon, so they will receive exactly what we want to say."
