Summary
Pair of total force needles, 9 cm long, each with three weights, in a wooden box and zinc case. Needles marked '3A and B', '4A and B'. Used at Melbourne Observatory to measure changes in the Earth's magnetic field.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Transfer from Melbourne Observatory, 1945
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User
Melbourne Observatory, South Yarra, Greater Melbourne, Victoria, Australia
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Classification
Physical sciences, Geophysics - geomagnetism, Measuring equipment
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Category
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Discipline
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Type of item
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Keywords
Dip Needles, Geophysical Apparatus & Instruments, Total Force Needles
