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In article , Martin Rich
writes It certainly wouldn't have been a laser as they were strictly for laboratory use in the 1960s and 1970s I don't think so. In the mid-1970s I was using a laser in school physics lessons; the school had at least two for that purpose. -- Clive D.W. Feather | Home: Tel: +44 20 8495 6138 (work) | Web: http://www.davros.org Fax: +44 870 051 9937 | Work: Please reply to the Reply-To address, which is: |
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