Jean Andre Deluc Facts
Jean Andre Deluc Facts
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| Interesting Jean Andre Deluc Facts: |
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| Jean Andre Deluc was born in Geneva, Switzerland to a family who had immigrated from Lucca, Italy. |
| His education was in mathematics and natural science but he was a businessman in his adult years. |
| He also worked in politics and in 1768 was sent to the Duc de Choiseul in Paris. |
| His mission was successful and in 1770 he became a member of the Council of Two Hundred in Geneva. |
| In 1773 he suffered some business losses, gave up business and moved to England. |
| While in England he became a Fellow of the Royal Society and for the next forty-four years was a reader to Queen Charlotte which allowed him time for scientific study. |
| He studied the effects of heat and pressure on the mercury barometer and was the first to publish the correct rules for using the barometer to find the height of mountains. |
| He discovered that water is at its densest at 39 degrees and theorized that the quantity of water vapor in a given space is independent of the density of the air around it. |
| He devoted much time and study to the invention of scientific instruments and invented a portable barometer for use on expeditions. |
| He invented a new hygrometer which used mercury. |
| In 1809 he sent a paper to the Royal Society detailing his improvements to the dry pile, which is a forerunner to the modern dry cell. |
| He died in Windsor, England at the age of 90. |
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