A Manufacturing Town' by L. S. Lowry, 1922. Oil on panel, signed and dated, bottom left. An industrial cityscape in the spirit of a northern town such as the artist's native Salford. The artist combines elements of factory buildings, mine heads, smoking chimneys, busy street life and civic pride. A Manufacturing Town' by L. S. Lowry 1922
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