Most countries have dropped the requirement for learning Morse code to become a ham radio operator. Because of that, you might think Morse code is dead. But it isn’t. Some people like the nostalgia.

Learning Morse code, with its tappity-tap rhythms of dots and dashes, could take far less effort—and attention—than one might think. The trick is a wearable computer that engages the sensory powers of ...

Morse code is a method of encoding words that was invented in the 19th Century as a way of transmitting messages over long distances. This was before the era of telephones and way before smartphones!