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W. Wilson Dip Needle

Specifications

W. Wilson Dip Needle

Category

Science and Technology

Classification

CHENHALL - Tools & Equipment for Science & Technology - Electrical & Magnetic T&E - Electrical & Magnetic Measurement Devices - Instrument, Magnetic

Object Origin
Manufacturer:

W. Wilson

Place of Production:

London, England

Physical Characteristics

Object Description: Metal dip needle inside of a circular glass case with round brass sides. There is a metal dial with numbers along the inner perimeter of the glass case. The case is mounted to a circular plate with engraved numbers around the perimeter. Text is engraved along front rim. A level has been screwed to the base, just above the text. The plate can swivel and rests on a round base with three (3) legs.

Materials:

brass

glass

Marks: "W. WILSON, 1, BELMONT ST., LONDON. N.W."

Measurements: Object:
    Height: 10 in, Length: 6.5 in, Width: 6.5 in
    Weight: 4.4 lbs

Credit

Gift of Bert Benade, 2009.11.4

Display Status

On Exhibit

W. Wilson Dip Needle

About: W. Wilson Dip Needle

About: W. Wilson Dip Needle

Handmade in London in the early twentieth century, this device was used to measure the angle between Earth’s magnetic field and its surface, which varies based on location. When the metal disc is positioned vertically, the needle is prevented from pointing towards the magnetic poles and will align itself with the nearest magnetic field.

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Copyright information

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