Tap Code

The tap code, sometimes called the knock code, is a way to encode messages, letter by letter, in a very simple way and transmit it using a series of tap sounds, hence its name. It has been commonly used by prisoners to communicate with each other. The method of communicating is usually by "tapping" either the metal bars, pipes or the walls inside the cell.

Read more about Tap CodeDesign, History

Other articles related to "tap code, code":

Tap Code - History
... As the "knock code", a Cyrillic script version is said to have been used by nihilist prisoners of the Russian Czars ... The knock code is featured in Arthur Koestler's classic 1941 work Darkness at Noon ... war during the Vietnam War are most known for having used the tap code ...

Famous quotes containing the words code and/or tap:

    Faultless honesty is a sine qua non of business life. Not alone the honesty according to the moral code and the Bible. When I speak of honesty I refer to the small, hidden, evasive meannesses of our natures. I speak of the honesty of ourselves to ourselves.
    Alice Foote MacDougall (1867–1945)

    Anna who was mad,
    I have a knife in my armpit.
    When I stand on tiptoe I tap out messages.
    Anne Sexton (1928–1974)