This is completely fascinating and more than a little mind-bending.
Scientists in Germany have developed the world's tiniest ear, referred to as a "nano-ear." This ear could be able to listen to the sounds of bacteria and viruses, both of which make noise as they move. Not only are they extremely sensitive, they can even tell where a sound is coming from.
According to the physicist who helped develop it, Jochen Feldmann, ""There are definitely medical opportunities which we can tackle together
with the right people, but we just have to see how it