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useless_faq2015-03-21 02:06 pm
boltatel.livejournal.com) wrote in useless_faq2015-03-21 02:06 pmскорость света
Почему скорость света обозначается буквой c ?
boltatel.livejournal.com) wrote in useless_faq2015-03-21 02:06 pm
no subject