Βασικές Μαθηματικές Μέθοδοι 21-10-2021 (Μέρος 2o)

New channel Διαλέξεις Φυσικού Αθήνας: title sample judged 'whole' (This is a university physics department's full lecture recordings (Mechanics, Special Relativity, Mathematical Methods, ); passed a second screen for sellers/exam-prep/re-uploads; 0 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.