Physics · Unidentified

Accession Number:

Instrument Name: Brachistochrone


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 L is held together by two large brackets. Taped to the base of the L is a black cup containing three white balls.

Alternative Name: Brachistrome

Primary Materials:

Wood, possibly ivory (white balls), 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 Some parts of the curves have been replaced by a different part of wood.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: Black cup and three white


Unknown but possibly at the University of Toronto

Date of Manufacture: circa early to mid 20th century


University of Toronto department of Physics

Donated to UTSIC: Yes

Historical Notes: None