Inventor Manu Prakash thinks you can’t understand Earth’s big problems without looking at the (really) tiny things. So he created Foldscope: an origami microscope that brings science to people’s pockets. It costs less than $1 to build, is portable and weighs less than 10 grams. There are more than 500,000 Foldscopes out in the world, and Manu hopes they’ll forge communities of curious problem solvers. This Great Big Story was made possible by UBS.


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