“I'm going to make like a turtle and get the shell out of here!”
Ernst Julius CohenDied c. 5 Mar 1944 (born 7 Mar 1869).Dutch chemist who researched piezochemistry, electrochemical thermodynamics, polymorphism of compounds and the allotropy of metals, especially tin. He examined the different properties of tin's allotropes: white tin which is the familiar stable form above 13.2ºC and the powdery gray tin stable below that temperature. (The crumbling transition at low temperature is slow and called tin pest by Cohen. Because the cold transformation can be initiated or accelerated by seeding white tin with traces of grey tin, it is also known as tin disease, as if infected.) Cohen's life ended in the Auschwitz death camp following his arrest as a Jew by Nazi occupation forces in 1944. The exact date of his death is uncertain.« |
