מהיכן הגיעו המים שבכדור הארץ? – זאכרי מץ

From a channel Lumen includes in full: This is a localized TED-Ed channel. Its uploads are short animated lessons on economics, oceanography, physiology, particle physics, psychology and mythology, each written to teach and backed by lesson materials on ed.ted.com. The transcripts show substantive explanations, and the narrative openings serve as context rather than clickbait. Titles are descriptive questions, not withheld-information hooks, and the myth retellings sit within a deliberate humanities curriculum.