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This article was the subject of a Wiki Education Foundation-supported course assignment, between 14 January 2021 and 16 April 2021. Further details are available
on the course page. Student editor(s):
大头儿子的好爸爸.
Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT ( talk) 09:33, 17 January 2022 (UTC)
Needs dates and history. —Preceding unsigned comment added by Dan428 ( talk • contribs)
Needs sources too. 80.202.115.240 13:41, 5 August 2007 (UTC)
Needs smoke. —Preceding unsigned comment added by 124.170.22.193 ( talk) 15:47, 11 September 2007 (UTC)
The common image of smoke signals, in particular as used by North American indians, includes a kind of "modulation" where the message is conveyed by creating puffs of smoke (as everybody knows). This isn't even mentioned in the article, lest it's hidden in the "signaling system"-phrase. Hexmaster ( talk) 15:41, 22 October 2008 (UTC)
The Polybius square uzed fire of torches, and no smoke.-- Jean-François Clet ( talk) 09:27, 14 December 2009 (UTC)
![]() | This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||
|
This article was the subject of a Wiki Education Foundation-supported course assignment, between 14 January 2021 and 16 April 2021. Further details are available
on the course page. Student editor(s):
大头儿子的好爸爸.
Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT ( talk) 09:33, 17 January 2022 (UTC)
Needs dates and history. —Preceding unsigned comment added by Dan428 ( talk • contribs)
Needs sources too. 80.202.115.240 13:41, 5 August 2007 (UTC)
Needs smoke. —Preceding unsigned comment added by 124.170.22.193 ( talk) 15:47, 11 September 2007 (UTC)
The common image of smoke signals, in particular as used by North American indians, includes a kind of "modulation" where the message is conveyed by creating puffs of smoke (as everybody knows). This isn't even mentioned in the article, lest it's hidden in the "signaling system"-phrase. Hexmaster ( talk) 15:41, 22 October 2008 (UTC)
The Polybius square uzed fire of torches, and no smoke.-- Jean-François Clet ( talk) 09:27, 14 December 2009 (UTC)