Diagrams and film footage are used to explain how prisms are used in periscopes and telescopic devices.
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Short Summary
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Description
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Data
- Film ID:
- 1164.16
- Media URN:
- 40237
- Group:
- Pathetones
- Archive:
- British Pathe
- Issue Date:
- 14/02/1938
- Sound:
- Silent
- HD Format:
- Available on request
- Stock:
- Black & White
- Duration:
- 00:02:19:00
- Time in/Out:
- 01:23:24:00 / 01:25:43:00
- Canister:
- PT 412
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