Chuck Adams is one of the few remaining Morse code aficionados in the world. Adams records audiobooks in Morse, chats with others in Morse via ham radio, and can transcribe Morse at 140 words/minute.
Earlier this year, Mr. Adams sent Barry Kutner, a 50-year-old ophthalmologist from Newtown, Pa., and another world-class coder, a 100-words-per-minute version of the book. To Mr. Adams's chagrin, Mr. Kutner wrote an email back pointing out that the gap between words was eight dits long, instead of the prescribed seven. At that pace, a dit lasts 1.2 one-thousandths of a second.
See also: Tales of the telegraph.