Manu Prakash, Stanford University professor who had earlier built the less than a dollar foldscope — a paper microscope that can be used for diagnosing blood-borne diseases such as malaria, African sleeping sickness and Chagas — has now developed another ultra-low cost device that can revolutionise public health. The human-powered paper centrifuge, which can attain … Continue reading A hand-held, 20 cents paper centrifuge can revolutionise global health