A Foldscope is an optical microscope that can be assembled from simple components, including a sheet of paper and a lens. It was developed by Jim Cybulski and Manu Prakash and designed to cost less than US$1 to build. It is part of the "frugal science" movement which aims to make cheap and easy tools available for scientific use in the developing world.

இதை நீங்கள் வாங்க நினைத்தால் முழு kit ஆக வாங்குங்கள். அதில்தான் லைட் எல்லாம் கிடைக்கும்.

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The basic principle of using a small spherical lens held close to the eye dates back to Antonie van Leeuwenhoek (1632-1723), who was the first to see single-celled organisms using such a lens held in a device of his own design. The idea for creating a low-cost microscope came to Prakash in 2011 while he was at a field station in Thailand. He remarked that the station had a very expensive microscope but that everyone was afraid to use it because it was fragile and worth more than most people's salaries. He wanted to create an affordable microscope that would be versatile and sturdy enough to work in field conditions. He also wanted to create a device that people felt they had ownership of, which is part of the reason the Foldscope comes in a kit to be assembled. He developed the first prototype in 2014. Credit by Wikipedia