Bat detector

摘要

Bats are truly amazing creatures. Even in pitch-darkness they can still sense their surroundings by first producing a sound burst that's inaudible for humans and then listening to the reflections - a technique humans have mastered only relatively recently using electronic equipment called radar. The bat's brain then forms a picture detailed enough to recognise any form of potential food. To gain a little insight into the life of a bat the author has developed a bat detector. It almost seems as if the bats thought being a flying mammal wasn't enough to make them stand out.