A character code invented by Samuel Morse that is represented by the duration of a single tone. Written as dots, dashes and spaces, the first Morse code message was sent in 1844 over a newly ...

(Editor’s Note: Dr. Wayne Shearer, 94, is a retired optometrist and retired colonel from the U.S. Air Force Reserve now living in Hixson. In his early 90s, he decided to sit down and write from memory ...

Tony Ingesson does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...