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"Science and science fiction, how do you even distinguish the two?"
- Jerry Pournelle
 |
| Maximum-security Booth | ||
| A special phone booth for receiving high-security, scrambled telephone calls, calls which included 3D visuals. |
| I soon saw why the call had not been brought to the table; No. 12 was a maximum-security booth, sight, sound, and scramble. The tank showed no image and did not clear even after the door locked behind me. It remained milky until I sat down and placed my face within pickup, then the opalescent clouds melted away and I found myself looking at my spaceman friend. |
| From Double Star,
by Robert Heinlein. Published by Doubleday in 1956 Additional resources -
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