Technology does not stand still.
With new breakthroughs happening every day, the many inventions that permeate our lives are improving at an exponential rate. In fact, people can now predict when discoveries and breakthroughs will happen.
But even still, it’s always incredible to see how far technology can be pushed.
The first submarine, invented in 1620, was nothing like the underwater vessels we know today. In fact, early submarines didn’t even have mechanical power. Instead, they had to be rowed using oars.
Similarly, early microphones share many differences from their modern counterparts, using metallic strips and liquid transmitters to record grainy, hardly decipherable sounds.
These two technologies have come so far that a nuclear submarine’s microphone can hear the ticking of a watch from a meter away, a shrimp chewing its food from 100 meters away, and even a human talking from 20 miles away.
The animal with the strongest level of hearing is the wax moth, which can hear sounds up to 300kHz. For comparison, humans can only hear up to 20, and a nuclear submarine’s microphone can hear up to 320.