Unseen Worlds
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Discusses the invention of the earliest microscope. Shows later devices for exploring the world beyond the naked eye, including the electron microscope.
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Sources
- 16mm Filmography (legacy record) — title, year, creator, format, sound, description, catalog record
- Educational Film Guide 1946 — title, year, creator, length, format, sound, description, catalog record
Original permalink · Record added 2023-02-27 06:08:56