 1745 - Alessandro Volta born: invented the voltaic pile, the first electric battery; discovered and isolated methane. The unit of electric potential, the volt, is named in his honor. |
| 1913 - Frederick Soddy introduced the term "isotopic" (meaning "same place") for elements which share the same place in the periodic table. |
| 1931 - John H. Sinfelt born: platinum-iridium catalysts in petroleum refining. |
sources: http://webserver.lemoyne.edu/faculty/giunta/week.html, http://todayinsci.com
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