You must have came across the concept of Nadi somewhere when you read about Ayurveda. At a first glance it seems an absurd concept. But think..These are the Signals produced by your body. And the best way to decode is by the method of Signal Processing. Here is an article about a device made for Nadi-Pariksha called 'Nadi Tarangini' by a Pune based young researcher Dr. Anirudha Joshi. Lets know more about it.