Inside the Supreme Court chamber of the U.S. Capitol on May 24, 1844, Samuel F.B. Morse sat down to make history. The moment was the culmination of more than 12 years of work, and it was only in the ...

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.

Conventional wisdom holds that the best way to learn a new language is immersion: just throw someone into a situation where they have no choice, and they’ll learn by context. Militaries use immersion ...