An Experiment on a Bird in the Air Pump
Historical Context
Joseph Wright of Derby painted An Experiment on a Bird in the Air Pump in 1768, one of the defining images of the Enlightenment. A lecturer has placed a white cockatoo in a glass sphere from which air is being pumped, demonstrating that life cannot be sustained without air. The assembled audience — a family group of various ages — responds with various emotions: philosophical fascination, distress, horror, detached observation. The painting asks whether scientific progress justifies cruelty, and each figure's response represents a different contemporary position on this question. No previous painting had so directly engaged with the ethical implications of scientific experiment, and the work remains the most philosophically complex image produced in eighteenth-century British art.
Technical Analysis
Wright orchestrates a complex composition lit by a single candle hidden behind the air pump's glass globe. Each face registers a different emotional response, modeled with extraordinary subtlety in the warm candlelight against the encircling darkness.
