Amalgam (dentistry) and 900 shares of tin." Ever since its introduction in the Western world in the 1830s, amalgam has been the subject of recurrent controversies because of its mercury content. Early amalgam was made by mixing mercury with the filings of silver coins. In 1833 Englishmen, Edward Crawcour and his nephew Moses Crawcour (incorrectly referred to as "the Crawcour brothers"), brought amalgam to the United States, and in 1844 it was reported that fifty percent of all dental restorations placed in upstate New York consisted of amalgam. However, at that point the use of dental amalgam was declared to be malpractice,
What is Living and What is Dead in Indian Philosophy What is Living and What is Dead in Indian Philosophy What is Living and What is Dead in Indian Philosophy is a 1976 book by Debiprasad Chattopadhyaya. Explaining the relationship between the soul and consciousness in the Nyaya-Vaisesika philosophy, Debiprasad Chattopadhyaya makes three points. First, consciousness in this view is knowledge (jnana) in an empirical sense. Second, consciousness is one of the multiple qualities of the soul. Third, consciousness is a transient quality, not a permanent quality. By itself, the soul is without consciousness; consciousness is produced in the soul only when it is conjoined with certain other entities. Hiriyanna,