Hindu Achievements in Exact Science: A Study in the History of Scientific Development c15.25

c15.25

(2) Bhoja (*c* A.D. 1050) in his directions for shipbuilding gave the warning that no iron should be used in holding or joining together the planks of bottoms intended to be sea-going vessels. The fear was entertained lest the iron should expose the ships to the influence of magnetic rocks in the sea, or bring them within a magnetic field and so lead them to risks.³⁴