What is it? Answers LXXI

Tuesday, July 05, 2005

388. Scratch test needles, for testing gold

389. Reaction propulsion pistol, this device was tested in zero gravity aircraft flights as a means of individual maneuvering in free fall.

390. Dart sharpener

391. Magnetic boots, these were used in experiments in zero gravity aircraft flights to determine their utility for space operations.

392. Brake shoe retaining spring tool

393. Ulu or mezzaluna style mincing knife

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