This is a painting entitled "An experiment on a Bird in the Air Pump" by Joseph Wright in 1768. The painting reveals a wide range of individual reactions to the experiment that is taking place. We can see frightened children, a reflective philosopher, interested youths, and indifferent young lovers. In this painting, only one, tiny light source exists: the lamp on the table. The way the painting is lighted, we can see a dramatic use of light into dark. Therefore this painting shows chiaroscuro.