NSF Video Lectures from 1950s - Where to Find?

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The discussion seeks sources for 1950s video lectures, specifically beyond fluid mechanics. A user mentions a link to MIT's site but clarifies they are looking for lectures on different subjects. The conversation indicates that some users have already found relevant videos elsewhere. The focus remains on locating diverse educational content from that era. Overall, the thread emphasizes the challenge of finding specific historical video lectures.
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Does anyone know where I can find video lectures similar to

in that they are from the 1950's?
 
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Thanks for the link, but I have already found websites with those videos. I was referring to videos to other subjects rather than fluid mechanics.
 
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