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 ...

Symbols with different lengths are combined to represent letters and numbersMorse codeIs designed so that the most frequently used letters are represented by the shortest code. Therefore, as long as ...

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 ...

This device takes an RSS feed, sanitized by a PHP script and rendered in morse code by Morse2LED, then broadcast, just like it might be by a traditional telegraph sounder. I can't even think of an ...