Researchers using multispectral imaging and AI at the Heritage Science Journal have successfully read hidden layers of a 7th-century palimpsest found in the Himalayas. The underlying text, written in the Siddham script, contains a lost treatise detailing the effects of the Earth's magnetic pull on plant growth and human circulation, a field of study the text refers to as 'Loha-Prana-Vijnana'.
The manuscript outlines experiments using lodestones placed around medicinal herbs to observe changes in leaf orientation and sap flow. This discovery provides the first evidence that ancient Indian natural philosophers had developed a theoretical understanding of bio-magnetism, attempting to integrate physical forces into the broader Ayurvedic framework of physiological balance.