Inside the Indian Laboratory Before the Laboratory What comes to mind when you hear the word laboratory ? Perhaps a scientist in a white coat. Rows of glass bottles. Test tubes and beakers. A fume hood. Electronic balances, spectrometers and computers. Now remove all of them. Remove electricity. Remove modern glassware. Remove the thermometer. Remove even the periodic table. What remains? A furnace glowing with fire. A crucible buried among hot coals. A mortar in which minerals are being ground. A vessel connected to another vessel so that vapours can be collected. A substance is heated until it disappears from one place and deposits somewhere else. Could this also be called a laboratory? The history of Indian material practices suggests that we should at least consider the possibility. Premodern Indian traditions associated with metallurgy, medicine, Rasaśāstra, mineral processing, dyes and other technologies developed specialised apparatus and carefully described operations for tran...
Mercury, sulphur, metals and the fascinating world of material transformation in premodern India. What happens when medicine meets metallurgy, minerals meet the furnace, and the transformation of matter becomes intertwined with the transformation of the human body? One answer from the history of India is Rasaśāstra. Rasaśāstra occupies a particularly fascinating—and sometimes misunderstood—place in the history of Indian scientific and medical traditions. Its literature describes the processing of mercury, sulphur, metals, minerals and other substances through elaborate operations involving heating, grinding, purification, calcination, sublimation and distillation. It is tempting, therefore, to simply call Rasaśāstra "ancient Indian chemistry. But that description is both too easy and historically inadequate. A more useful way to understand it is: Rasaśāstra represents a historical domain in which medicinal practice, mineral processing, metallurgical techniques and alchemical tradi...