Dobbeltkegle

International names:

Centre of Gravity; Schwerpunct; Centre de gravité; Centrum gravitatus

English description:

Double cone rolling up a slope

Danish Instrument Inventory text:

Double cone rolling up a slope. 2.a) Mahogany cone max Dia150 L300. Point at one end broken. The slope is made of 2 mahogany boards, trapeze shape, hinged at the smaller end, and set with an angle allowing the cone to roll from the lower end of the "slope", upwards, while its centre of gravity is sinking.b) Boxwood cone max Dia58 L130. The slope is made as a triangle of mahogany boards, one point being lower than the two others, H35 and H60.Ref: Det phys Cab vol1 pl 14 fig 14.Not signed1800 app (g)

• Category: Statics
• Hauch number: B14
• Inventory number: 801
• Danish Instrument Inventory number: 307

• Hauch references:
• Begynd.grund: §116
• Cabinet 1: Bd.1 p 84; pl.14 fig14

• Literature:
• Nollet, J. A.: 3,09703
• Sigaud de Lafond : 1,1201
• Martinus van Marum: 33
• The King George III Collection: D 99
• Cataloque of Mechanical Instruments, Museo di Storia della Scienza, Firenze: 2,004

• Leybourn(1694);

  Musschenbroek(1729) pl.V* fig.6

  Desaguliers(1744); pl.IV fig 14

  s' Gravesande(1747) pl.7 fig.1

  Adams(1794) III pl. II fig.8