The Pioneer Bubble Sextant - Mark 5, Pt 1
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✎ Suggest a correctionExplains how to use the Pioneer Bubble Sextant and the optical and bubble horizon systems. Shows how to read the scale.
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- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, creator, length, format, sound, description
- 16mm Filmography (legacy record) — catalog record
Original permalink · Record added 2023-02-27 05:14:26 · Suggest a correction