Conics Project
Published on Nov 22, 2015
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Pierre de Fermat was a French lawyer and mathematician in Toulouse France. He lived from August 1601 till January 1665. One of Fermat's contributions to conics is that he came up with the equation of a plane curve. The equation is y=x^n. If n>0 , the curve is a parabola; if n
Photo by tornad3
Devils Bridge, also known as "Dyavolski Most", is an arch bridge in Bulgaria. The bridge was built in 1515 - 1518 by the builder Dimitar from the village of Nedelino. He built it upon the remains of an ancient Roman bridge on the road, connecting the Aegean region with Northern Thracian valley through the Makaza pass.
Photo by ali eminov
The whole bridge is 183.7 ft long and has three arches, but also has holes with small semicircular arches to read the water level. It has a width of 11.5 ft and its main arch is 37.7 ft high.
There are a few myths about the bridge, one is that that the head builder's wife passed away during construction, so her shadow was encased in the structure. Another one says that the devil's footprint can be found somewhere on the rocks. Then another is that the devil was involved in the construction, which is why it has never needed a single repair in 500 years
Photo by danmachold
An application for a parabola would be headlights on a car. The headlight is constructed out of a reflective surface which is parabolic. The actual light bulb is placed at the focus. The light from this bulb reflects off the surface in parallel beams which focuses the headlight beam directly forward from the car. This is because any light source at the focus of a parabola reflects in beams parallel to the axis of symmetry of the parabola.
Photo by Billy Wilson Photography
