Sackgasse Beton: Die Suche nach Alternativen [Ganze Doku] | Harald Lesch | Leschs Kosmos

Picked video by video from Terra X Lesch & Co (mixed channel): title plainly names a teaching subject. Channel transcript sample: All three sampled videos are structured science explainers teaching astrophysics and biochemistry concepts, consistent with a pick verdict.

A 30-minute video from Terra X Lesch & Co: “Sackgasse Beton: Die Suche nach Alternativen [Ganze Doku] | Harald Lesch | Leschs Kosmos”.

Video by Terra X Lesch & Co, played through YouTube's embedded player.