Archibald Spencer
| Archibald Spencer | |
|---|---|
| Born |
January 1, 1698 Edinburgh, Scotland |
| Died | January 13, 1760 (aged 62) Annapolis, Maryland |
| Citizenship | United States |
| Nationality | England |
| Fields | Physics |
| Known for | Electricity |
Archibald Spencer (January 1, 1698 – January 13, 1760) was a businessman, scientist, doctor, clergyman, and lecturer. He is noted for introducing the phenomenon of electricity to Benjamin Franklin.
Spencer was born on January 1, 1698, in Edinburgh, Scotland, with a given name of Adam which later changed to Archibald. Some writers on Benjamin Franklin's life have stated that Spencer was a medical doctor, and a male midwife and specialized in diseases of the eye. Historian Leo Lemay claims that there are no records that Spencer had any medical training in Edinburgh, but may have had medical training in France.
Spencer was a businessman in the British Colonies of America. From 1743 to 1751 he professionally conducted scientific lectures and demonstrations. These were popularized in the colonies after Professor Isaac Greenwood started them in Boston in 1727. Spencer's first lecture advertisements are in the May 30 issues of the Boston Evening Post and the Boston Weekly Post-Boy. Spencer's charge for attending his course was expensive, £6, but was popular nevertheless. Spencer's science and mechanical lectures at first were on Isaac Newton's theory of light and state-of-the art techniques in medicine. Benjamin Franklin attended one of Spencer's dramatic lecture illustrations in Boston in 1743 and was not only amazed but amused. He then acted as Spencer's agent when he came to Philadelphia in 1744 for his lectures, selling tickets and advertising them. Advertisement were run in the Pennsylvania Gazette.
The Leyden jar capacitor for high-voltage storage was invented in 1746 by Pieter van Musschenbroek, whom Franklin would meet later. Then Spencer's Philadelphia lecture demonstrations on science included more electrical demonstrations and became elaborate with showmanship static electricity illustrations using the Leyden jar. In 1746 Franklin bought all of Spencer's electrical equipment for his own personal use and experimentation. Spencer introduced Franklin to the study of electricity through experimentation and was his mentor. Franklin then trained three of his associates on Spencer's Philadelphia electrical illustrations, Samuel Domjen in 1748, Ebenezer Kinnersley in 1749, and Lewis Evans in 1751.
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