Why does the landscape remain lit 30 to 45 minutes after the sun has set? Harriett Drake, Fayetteville, Georgia What you’re seeing then is twilight. From wherever you’re standing, shortly after sunset ...

Morse code encodes a simple text into a sequence of dots, dashes/dits, and spaces. It is one of the earliest methods used to transmit messages in the form of audible or visual signals. The Morse code ...

Morse code, the language of the telegraph, is a system of communication that's composed of combinations of short and long tones that represent the letters of the alphabet. The tones are sometimes ...

Larry Kahaner - Larry Kahaner is an American journalist and author who resides in Bethesda, Maryland. Steve Galchutt shows off the custom-made low-wattage transmitter he uses on his treks. Chase Brush ...

Readers of a certain age will remember the payphone trick of letting the phone ring once and then hanging up to get your quarter back. This technique was used with a pre-planned call time to let ...

During Google I/O today, the company announced that Gboard would soon support Morse code, a move inspired by developer Tania Finlayson who communicates through head movements that are translated into ...