Scientific Discoveries

Some of the ideas the whole world now uses were worked out in India first. This section is about the discoveries and inventions: the zero and the decimal place-value system, the rules of trigonometry, the Iron Pillar of Delhi that hasn't rusted in 1,600 years, Ayurvedic medicine and early plastic surgery, the mathematics of Kerala's astronomers who edged toward calculus centuries before Newton. Each article takes one idea and explains how it actually worked and who figured it out — no hand-waving, no "ancient Indians knew everything." Just the real, documented discoveries, and the clever people behind them.