Torsion Pendulum


The “Knott, Boston” inscription on one leg of this instrument refers to L. E. Knott, an apparatus firm that began in business in 1895. Knott termed it an Improved Sabine’s Torsion Pendulum for determining the moment of torsion of a wire and the moment of inertia of a ring.

Ref: Wallace Clement Sabine, A Student’s Manual of a Laboratory Course in Physical Measurements (Boston, 1893), pp. 30-32.

L. E. Knott, Catalogue of Physical Instruments (Boston, 1912), p. 129,

Maker: L. E. Knott Apparatus Company

Location: Currently not on view

Place Made: United States: Massachusetts, Boston

Subject: Science & Scientific Instruments


See more items in: Medicine and Science: Physical Sciences


Exhibition Location:

Data Source: National Museum of American History

Id Number: PH.315752Catalog Number: 315752Accession Number: 217544

Object Name: torsion pendulum

Measurements: overall: 7 in x 5 3/8 in x 4 1/2 in; 17.78 cm x 13.6525 cm x 11.43 cmoverall: 24 1/8 in x 13 5/8 in x 11 1/8 in; 61.2775 cm x 34.6075 cm x 28.2575 cm


Record Id: nmah_1393291

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