你知道吗?最早的“无人侦察机”其实是中国人发明的,而且不需要空间加油就能完成情报的传递和搜集……最原始的窃听器——听瓮窃听是间谍搜集情报最古老的手段,也是现代特工的“必修课”。中国人很早就意识到了这一点,并且发明了人类最早的窃听器——听瓮。听瓮,其实就是一种口小腹大的罐子。人们将听瓮埋在地下,在瓮口 Did you know that the earliest UAVs were actually invented by the Chinese people, and they did not need space to complete the transmission and collection of intelligence? The most primitive eavesdropping device The oldest means, but also modern agents “compulsory ”. The Chinese have long realized this and invented the earliest human bug - listening urn. Listen to the urn, in fact, is a big jar with a small belly. People will listen to the urn buried underground, in the vat mouth