I can not upload the video for some reason here is the link
www.cryptogon.com/?p=43271
When Manu Prakash, PhD, wants to impress lab visitors with the durability of his Origami-based paper microscope, he throws it off a three-story balcony, stomps on it with his foot and dunks it into a water-filled beaker. Miraculously, it still works.
Even more amazing is that this microscope — a bookmark-sized piece of layered cardstock with a micro-lens — only costs about 50 cents in materials to make.
In the video posted above, you can see his “Foldscope” being built in just a few minutes, then used to project giant images of plant tissue on the wall of a dark room.
Prakash’s dream is that this ultra-low-cost microscope will someday be distributed widely to detect dangerous blood-borne diseases like malaria, African sleeping sickness, schistosomiasis and Chagas.
“I wanted to make the best possible disease-detection instrument that we could almost distribute for free,” said Prakash. “What came out of this project is what we call use-and-throw microscopy.”
The Foldscope can be assembled in minutes, includes no mechanical moving parts, packs in a flat configuration, is extremely rugged and can be incinerated after use to safely dispose of infectious biological samples. With minor design modifications, it can be used for bright-field, multi-fluorescence or projection microscopy.
