день физики 2014
Post on 08-Jul-2015
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https://www.youtube.com/watch?v=zg0im1OFDNs
https://www.youtube.com/watch?v=70RqhVlQcN8&feature=youtu.be
https://www.youtube.com/watch?v=gwmpIqPBPgM
https://www.youtube.com/watch?v=U4QyiNjN4ao&feature=youtu.be
https://www.youtube.com/watch?v=gbftSGzWgaA&feature=youtu.be
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