Challenging puzzle for experienced crossword solvers
Antique Instruments of Precision Measurement
Challenging puzzle for experienced crossword solvers
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Across
- 1. Obscure surveying tool designed to measure heights and distances through angular projection
- 3. Mechanical integrator tracing boundary curves to calculate irregular area accurately
- 4. Instrument invoking mercury or aneroid mechanisms to gauge atmospheric pressure
Down
- 2. Fine scale inventively crafted to enhance caliper accuracy, enabling fractional measurement
- 5. Precision screw gauge named for measuring minute lengths with calibrated spindle
- 6. Navigational relic measuring angular distances for mariners by reflecting celestial bodies
- 7. Medieval star-mapping device that charts celestial spheres with intricate plates
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