Foldscpe was introduced to many young researchers and eminent scientists from AIIMS- New Delhi, Indian Institute of Medical Education and Research, Public health microbiologist,NIT- chattisgarh ,University of Madras, and many more. It was a great experience. The group expressed their interest in using foldscope as one of the tool. In this regard Dr. Manu Prakash can you tell me any method you have to validate the result that we get through foldscpoe. How we can say the image is magnified 140times ? Many of the group attended were curious to know about this .