Radio/Wireless communication

Radio/Wireless communication

We all know that Marconi received a Nobel Prize in Physics in 1909 for contribution to the development of wireless telegraphy. But the first public demonstration of radio waves for communication was made by Sir Jagdish Chandra Bose in 1895, two years prior to Marconis similar demonstration in England.

Sir Bose was posthumously credited (more than a century later) for his achievement. The fact remains that this discovery truly shaped the face of modern wireless communication.

Steel & Metal works

Ancient Indians were pioneers in metallurgy. High quality steel was produced, almost two thousand years before it was understood by the West. One of the most remarkable feat in metallurgy: creating a seamless celestial globe, was invented in Kashmir. It was earlier considered impossible to create a metal globe without seams.

Ink

Many ancient cultures and civilizations independently discovered and prepared ink for writing purposes. The source of carbon pigment used in Indian Ink (called musi) used in ancient India, was India. Since 4th century BC, the practice of writing with ink with a sharp pointed needle was common in South India.

Diamond Mining

Worldwide, India was the only source of diamonds until the discovery of mines in Brazil in the 18th century. Almost 5000 years ago, diamonds were first recognized and mined in central India.

Cataract Surgery

Indian physician Sushruta (6th century BCE) had the knowledge of performing cataract surgery. It spread to China from India. Greek scientists would visit India to get operations done and also to learn the nitty-gritties.