-wright - An Experiment on a Bird in the Air Pump. 1768 (veryHD) Oil on canvas. 182.9 x 243.9 cm. National Gallery, London, UK@@ -wright - An Experiment on a Bird in the Air Pump. 1768 (veryHD) Oil on canvas. 182.9 x 243.9 cm. National Gallery, London, UK@@