Feb 13, 2008 11:18
16 yrs ago
English term

rotor wheel

English Other History
The U-boats kept their keys to the Enigma, the position of the rotor wheels, on a water-soluble piece of paper
with water-soluble ink.
Change log

Feb 13, 2008 14:29: Tony M changed "Field (specific)" from "Cinema, Film, TV, Drama" to "History"

Discussion

Jack Doughty Feb 13, 2008:
I know the Poles made a great contribution to solving this problem, and should have mentioned it. Sorry! :-(

Responses

+4
12 mins
Selected

the symbols on the wheels of the Enigma encoding machine

U-boats received messages which were encoded by a special machine and could only be decoded by another such machine. The encoding was based on a number of rotor wheels being set to a certain position relative to each other. The system was finally broken by a British team at Bletchley Park, and the subsequent ability to read encoded German messages was a great help to the British war effort.
Note from asker:
The system was broken by Poles :)
Peer comment(s):

agree salavat
8 mins
Thank you.
agree V_Nedkov
31 mins
Thank you.
agree Dave Calderhead : very full but concise explanation, Jack. I think you've cracked it!
35 mins
Thank you. I worked at GCHQ for two years, but not on anything comparable to this.
agree Patricia Townshend (X)
3 hrs
Thank you.
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "Thank you! :)"
3 mins

unknown

smth., you can only guess about, never certain....

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Note added at 5 mins (2008-02-13 11:23:51 GMT)
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and the word preceeding the phrase only works for this apprehension.... IMHO.

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Note added at 6 mins (2008-02-13 11:24:32 GMT)
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preceding
Something went wrong...
+3
12 mins

part of an Enigma codeing machine

see e.g.:

Enigma rotor details - Wikipedia, the free encyclopedia
The left side of an Enigma rotor, showing the flat electrical contacts. .... The third wheel and the UKW would step in the normal fashion with Enigma ...
en.wikipedia.org/wiki/Enigma_rotor_details

Enigma machine - Wikipedia, the free encyclopedia
The four-wheel Swiss Enigma K, made in Germany, used re-wired rotors. ..... Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., ...
en.wikipedia.org/wiki/Enigma_machine

Enigma - Tourism - a Wikia wiki
Enigma (Wikipedia) was a World War II-era rotor machine used by Nazi Germany, ... Science Museum, London. The museum has a three-wheel Enigma on display. ...
tourism.wikia.com/wiki/Enigma

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Note added at 12 mins (2008-02-13 11:30:34 GMT)
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*coding*
Peer comment(s):

agree salavat
8 mins
agree V_Nedkov
31 mins
agree Dave Calderhead
36 mins
Something went wrong...
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