Professor Holger Babinsky: Surging cylinders, flapping wings and gust encounters...

New channel Cambridge Philosophical Society: title sample judged 'pick' (Mostly substantive expert lectures that pass the bar, but mixed with short event-welcome clips, fellow bios, panel discu); passed a second screen for sellers/exam-prep/re-uploads; 2 of 3 sampled transcripts showed teaching, 1 not; titles picked one by one, checked strictly; oEmbed verified.