Joseph Priestley, the scientist who discovered oxygen 250 years ago, will be honored with a mural in Calne to mark the anniversary of his groundbreaking discovery. Priestley made this significant breakthrough while working as a librarian at Bowood House in Wiltshire on August 1, 1774. The artwork will be created by local artist Oli Knowles, with plans to start in June and have it completed by the anniversary in August.
Priestley, born on March 13, 1733, is recognized as one of the founders of modern chemistry due to his contributions to experimental science. In 1773, the Earl of Shelburne enlisted Priestley to serve as an intellectual companion, tutor to his children, and librarian at Bowood House, where Priestley conducted his scientific experiments. Using a “burning lens,” he focused sunlight on a sample of mercuric oxide in an inverted glass container placed in a pool of mercury, which resulted in the discovery of oxygen.
Calne Clean Up Crew, a local charity, is behind the planned mural, which will have a scientific theme depicting the implements used in Priestley’s historic experiment. This project will be the fifth mural in Calne, serving as a way to brighten up the town and keep it clean. Cath Crofts, a volunteer with the charity, expressed excitement about the positive responses they have received from painting the murals and how it sparks curiosity and leads to further discovery among the community.