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Parabola.

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Using mathematics or what people have used mathematics for can be fun. One such item is a parabola. It can be used for everything from capturing radio waves to sound. There are a zillion formulas for building a parabola. One such formula is y=x^2/(4+b). But then, if you look closely on the net, there are examples you can use without all the math. In one article, I found a small picture of a parabola form that did not seem useful. Then I thought to myself, what if I enlarged the picture, could the picture be more useful? Saving the picture to storage was the first task. Then we loaded the picture into a viewing program. There you could enlarge the picture and save it in the expanded format. So far so good. Then I printed out the picture. Still do not have a parabola yet. Then it was time to get out the scissors and cut between the splines. Easy enough. Now just one last step in that we need to attach the splines together. Cellophane tape makes that easy. If you add foi...