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This article was the subject of a Wiki Education Foundation-supported course assignment, between 27 August 2018 and 10 December 2018. Further details are available
on the course page. Peer reviewers:
JustRaffy.
Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT ( talk) 09:50, 17 January 2022 (UTC)
This article was the subject of a Wiki Education Foundation-supported course assignment, between 6 March 2019 and 8 May 2019. Further details are available
on the course page. Student editor(s):
JustRaffy. Peer reviewers:
JustRaffy.
Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT ( talk) 09:50, 17 January 2022 (UTC)
This article could use more historical information: Who invented optical sound technology? When, where and how was it developed? I am amazed at how old this tecnology is and yet so ittle is written about it as compared to the phonograph, magnetic tape or digital media. Morganfitzp ( talk) 20:13, 15 March 2008 (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 27 August 2018 and 10 December 2018. Further details are available
on the course page. Peer reviewers:
JustRaffy.
Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT ( talk) 09:50, 17 January 2022 (UTC)
This article was the subject of a Wiki Education Foundation-supported course assignment, between 6 March 2019 and 8 May 2019. Further details are available
on the course page. Student editor(s):
JustRaffy. Peer reviewers:
JustRaffy.
Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT ( talk) 09:50, 17 January 2022 (UTC)
This article could use more historical information: Who invented optical sound technology? When, where and how was it developed? I am amazed at how old this tecnology is and yet so ittle is written about it as compared to the phonograph, magnetic tape or digital media. Morganfitzp ( talk) 20:13, 15 March 2008 (UTC)