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When we saw the "Why study mathematics" continuing series of articles, here we look at the conic section called the parabola. The parable is cut from a nap of the cone (see other article of this series at this point) with a plane parallel to receive one of the generators of the cone. In simple terms this means the following: Take a styrofoam cone, draw a straight line from the tip or tip toward the base, cut on the opposite side of this line, sliced the cone with a knife,center from top to bottom, and that the cut is made parallel to the line on the opposite side. The resulting cut produces a module called the parable.

The parable is the first time by students in their study of algebra in high school. They learn that the parable of the curve, which comes from each equation graphic or second-degree quadratic product. Unfortunately, students get bogged down by all means to solve these equations, and therefore the need to sketchCharts, they never learn oh on practical applications. This is a common problem for the study of mathematics. Students are lost in the forest and can not see the trees.

What students do not often taught in parables that often the real world. Just open your eyes. For example, the reflector can be seen most obviously when a suspension bridge. The lines formed by the track, as you pause from highest to lowest point inthe shape of a parabola. During a basketball game to follow the pictures taken by the players, which is a parabola in the air. In fact, this is probably one of the most common uses of the parabola: projectile motion. Each point in the room cast, moving under a gravitational field and without the effect of air resistance, the traces of a parabola.

the above applications, called parabolic surfaces in figure paraboloids and other optical techniquesApplications. Reflectors and satellite dishes are in the form of parabolic surfaces. The headlights are in this form. In fact, the bulb is known to be related to a specific point in the focus of the parabola. One interesting thing to note that if you go down the dark country and your headlights on, it is above the surface of the parabolic reflectors on your lighthouse, you see. Note that if you try to see if deerIntersection ahead. Until next time ...

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