Kashyapa is one of the Saptarishis to whom several important texts such as the Kashyapa Samhita (on Ayurveda) is attributed.
Then there is Kanada, who is the father of the Vaisheshika school of Hindu philosophy, who came up with the idea of atoms, in the Vaisheshika Sutra. Kanada is also known as Kashyapa.
I was wondering if the two are the same person or are they different people who just happen to have the same name? What are the possible time frames of their lives on the basis of evidence?