In 1945, four adorable Soviet Young Pioneers gave the U.S. Ambassador a U.S. National Emblem. No one expected that seven years later, this gift would become America's greatest humiliation.
This wooden national emblem was actually a high-tech Bug specially made by the Soviets. It monitored four successive U.S. Ambassadors before America finally discovered it seven years later.
Because the incident was so legendary, countless content farms turned it into videos and posted them online.
Some science creators also released videos explaining the principles behind the eavesdropping in detail.
The principle was that sound caused the diaphragm inside the Bug to vibrate. Those vibrations were then transmitted by a Metal Conductor and ultimately picked up by a vehicle parked on the street outside, equipped with a Decoder.
When Hyuga Ningyuan made Paper Airplanes, he had spent a long time studying imaging principles, but he had barely spent any time on sound.
That was because monitoring sound was simply too easy. He only needed to send over a scrap of paper. It would vibrate along with people's voices, then make another piece of paper vibrate at the same frequency, allowing him to reconstruct the sounds it had picked up!
Of course, ordinary people could not do this, but Hyuga Ningyuan was not ordinary.
He had Chakra and Object Control techniques, allowing him to carry out all of this.
"There are no fools in this world. But thinking about it, even if this clan head was foolish, with the Hyuga Clan's thousand years of experience, several more decades as clan head, and having lived through such sweeping changes of the times, he should have become smarter!"
But no matter how sly you are, you never could have guessed that I had cheats!
As he dispersed the scraps of paper beneath the table, he