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Electromagnet Core made by James Joule

Electromagnet Core made by James Joule

1839
Joule's Cast Iron Friction Apparatus (Calorimeter), 1849

Joule's Cast Iron Friction Apparatus (Calorimeter), 1849

1849
Joule's Electro-Magnet (Calorimeter) Apparatus, 1843

Joule's Electro-Magnet (Calorimeter) Apparatus, 1843

1843
Electromagnet made by James Joule for experiments on lifting power

Electromagnet made by James Joule for experiments on lifting power

1840
Small frame containing two kinds of spider's thread

Small frame containing two kinds of spider's thread

Electromagnet Core

Electromagnet Core

1835-1845
Lid for insulated barrel, part of Joule's original calorimeter ('paddle-wheel apparatus') used in determining the mechanical equivalent of heat. Copper mixing vessel with vane and spindle

Lid for Insulated Barrel

1876
Insulated barrel, part of Joule's original calorimeter ('paddle-wheel apparatus') used in determining the mechanical equivalent of heat. Copper mixing vessel with vane and spindle

Insulated Barrel

1876
Joule's original calorimeter ('paddle-wheel apparatus') used in determining the mechanical equivalent of heat. Copper mixing vessel with vane and spindle

Paddle-wheel Apparatus

1876
Joule's original calorimeter ('paddle-wheel apparatus') used in determining the mechanical equivalent of heat. Copper mixing vessel with vane and spindle

Mechanical equivalent of heat apparatus

1876