Smartphones are used more frequently than for watching videos than ever before, but sometimes you just want a bigger viewing area. For those strapped for cash or in the mood to do something creative, you can construct your own Homemade Projector. All the project takes is a cardboard box, a smart phone, and a few basic tools. The result is a real, working projector that you’ve made with your own hands! 

Want more experiments like this? Check out http://www.stevespanglerscience.com/product/naked-eggs-and-flying-potatoes

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