Morse code most common letter in English, the letter "E", has the shortest code: a single dot. Because the Morse code elements are specified by proportion rather than specific time durations, the code is usually transmitted at the highest rate that the receiver is capable of decoding. The Morse code transmission rate ("speed") is specified in "groups per minute", commonly referred to as "words per minute". Morse code is usually transmitted by on-off keying of an information carrying medium such as electric current, radio waves, visible light or sound waves. The current or wave is present during time period of the dot
The Ultimate Alphabet less prominent than others; the hardest to spot is in the "W" painting, where he appears (representing, of course "Wilks") in a tiny cameo on a reproduction of the cover of his earlier book "Weather Works". Each letter is itself represented several times, typically in braille, morse code, semaphore, and sign language as well as in its printed form. According to Wilks the book contained depictions of 7,777 words in total, ranging from just 30 for the letter X to 1,229 for the letter S, taking a total of 18,000 hours to complete. A single object may be described by