History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c40.s2.7
History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c40.s2.7
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c40.s2.7
But the *trasarenu* of physics is a different conception. It stands for the 'minimum visible', i e., as the physicists define it, that which is 'just discernible' as a glancing particle in the slanting beams of the morning (or afternoon) sun, coming into dark room through a chink or orifice of a window. This is a measure of size.