It has been claimed that Kashyapa, later known as Kanada (Sanskrit: कणाद); was a Hindu sage and philosopher who founded the philosophical school of Vaisheshika and authored the text Vaisheshika Sutra. He probably lived around the 2nd century BCE, while other sources claim he lived in the 6th Century BCE. It is believed that he was born in Prabhas Kshetra (near Dwaraka) in Gujarat, India.
His primary area of study was Rasavādam, considered to be a type of alchemy. He is said to have believed that all living beings are composed of five elements: water, fire, earth, air, ether. Vegetables have only water, insects have water and fire, birds have water, fire, earth and air, and Humans, the top of the creation, have ether—the sense of discrimination (time, space, mind) are one. He theorized that Gurutva(Hindi/Sanskrit for Gravity) was responsible for the falling of objects on the Earth.
Read more about Kanada: Conception of Anu (Atom)