 1742 - Carl Sheele born. |
| 1813 - Thomas Andrews born: discovered critical temperatures of gases (temperature above which they cannot be liquefied). |
| 1891 - Pauline Beery Mack born: nutritional content of meat and vegetables; bone density studies; laundering behavior of textiles; Garvan Medal, 1950. |
| 1949 - Berkelium (Bk, element 97) discovered by Kenneth Street, Jr., Stanley G. Thompson, Glenn T. Seaborg, and Albert Ghiorso using ion-exchange chromatography at University of California, Berkeley. |
sources: http://webserver.lemoyne.edu/faculty/giunta/week.html, http://todayinsci.com
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