You're a secret agent, and you start to notice strange symbols everywhere you look. Can you decipher their meaning – and work ...

"Morse code" is used to express letters and numbers by combining codes of different lengths, such as "Ton Ton Ton, Toe". Although it is a Morse code that uses only two codes, it is hard to memorize ...

It's not exactly beating something into someone's head. More like tapping it into the side. Researchers have developed a system that teaches people Morse code within four hours using a series of ...