A short talk about telegraphy
Contents |
Puzzle
I went to Europe with Prof. Morse
in 1865, and I remember one day
while speaking about our ages he
laughingly remarked that he invented the telegraph during the year
I was born. He told many interesting things connected with the progress and development of what is
known as the Morse code.
As a
souvenir of the occasion he dotted
down in my note-book the following
alphabet, accompanied by valuable
instructions which I cheerfully pass on to the rising generation:
It never was contemplated that
the messages should be taken by
sound, but after years of practice in
reading the tapes the modern expert developed and the old-time operator was driven out of business.
Don't imagine, however, that you
could begin to take messages by
sound; anyone can send a message,
but it requires great practice and
perfect familiarity with the alphabet to be able to note the differences
between intervals in the ticks. Practice reading and writing telegraphy
for months without thinking of the
sound until you are actually an expert. Prof. Morse explained that the
difference between a dot and a dash
was just about as much as between
the word "dot" and "dash," so to
learn the alphabet, take a pencil and
hit a quick, sharp blow, and say
"dot" and for the dashes give a
stronger push and always say "dash"
and give a somewhat longer wait
between the letters and a somewhat
longer dwell betwen words. For example in learning the alphabet say:
A dot dash, B dash dot dot dot, C
dot dot dot. Now do you notice
that there is a little more space between those last dots? You would
only detect that after you were a
thorough expert. D dash dot, dot,
E dot, F dot dash dot, G dash dash
dot and H is dot dot dot dot.
I never became a real expert
operator as I had no occasion to
practice the same professionally,
but at Professor More's suggestion I wrote several pages of the
code until I became familiar
with it. I learned this as well
as many other things which I
propose to talk about, merely as
an accomplishment for my own
amusement. "A little learning
may be a dangerous thing," and
"a jack of all trades may be a
master of none," but I believe
more in the old saying: " all work
and no play makes Jack a dull
boy." A boy who knows a little
about everything is better than
the boy who knows nothing
about anything. Let the young
store their minds with congenial
knowledge and they will never
forget it.
Just to familiarize you with the
Morse alphabet, I will take occasion
to tell a little incident which befel
the professor and myself on our return to New York, by the time you
have deciphered it you will have a
very good idea of the technical features of the code.
The letters are readily learned by
studying the scientific combinations
of the dots and dashes. A single dot
is E, two dots I, but if they are a little further apart, O. Three dots represent S, but with a little more space
between the first and second, becomes R; this reversed would be C. All of
the letters change by reversal, so they
should be learned in pairs. A changes
to N, B to V, D to U, G to W, Q to
X, and Z to &. A single dash represents T, but a longer dash is L. Anyone could learn the combinations in fifteen minutes. I have not looked at
them for nearly half a century, and
here I am with my shaky old hand,
writing out the above dispatch. Just
for fun I send it to Tom Edison to
see if I have made any mistakes.
Puzzle in short
Find out what the cipher dispatch says.
Answer
Show answer
References
- Loyd, Sam [1914]. in Loyd, Sam, Jr.: Sam Loyd's Cyclopedia of 5000 Puzzles Tricks and Conundrums (in English). New York: Lamb Publishing company, page 67.

