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Wooden L-shaped instrument with three wooden curves stemming from the top to the bottom of the L. The curves are bracketed to the frame at the top and bottom. The three wooden curves are held together by two large brackets. Stored with the Brachistochrone is a black cup containing three same-sized white ivory balls.

Accession Number:

Alternative Name: Brachistrome

Primary Materials: Wood, Ivory, Metal alloys.


Old catalogue number “PHY 58”, “BRACHISTROME”

Dimensions (cm): 88x22x120cm


Used to demonstrate the curve of fastest descent.


Good. Somewhere on wooden pieces especially at the ends and the corners. Some chips on curves and wooden base. Some rust on brackets and chipping paint. White balls are cracked and discoloured. Some parts of the curves have been replaced by a different part of wood. Steepest curve is slightly loose.

Associated Instruments:

Manufacturer: Unknown

Date of Manufacture: Early 20th cent.


University of Toronto department of Physics

Additional Information and References:

Historical Notes:


  • Donated to UTSIC