If you have pain or discomfort in your feet or ankle joints, you might have flat feet. Keep reading to find out the difference between a normal foot and a flat foot. A normal arch creates an upward curve in the middle of your foot. Tendons and ligaments in your foot and lower leg help form the arch and stabilize it. Because your feet help support your entire body, having strong arches is important to your bodyâs health. When those tendons and ligaments weaken, your arch collapses.
A parabola (/pÉËraebÉlÉ/ ; pÉËrÃ¦bÉlÉ plural parabolas or, parabolae adjective, parabolic From: greek) ÏÎ±ÏÎ±Î²Î¿Î»Î® is a-two, dimensional-mirror symmetrical, curve which is Approximately-u shaped when oriented as shown in the diagram, below but which can be in any orientation in its. plane
What is a Parabolic Reflector. The parabola is special type of curve that has a focal point to which parallel beams of light will be reflected. The opposite is also true, a light source placed at the focus will create a parallel beam of light, as in a spotlight. A parabola is the shape of the path of a projectile fired into the air and allowed to fall again (assuming no friction from the air), or a stone that is thrown into the air. It is also the shape obtained if you were to cut a cone shape along a line parallel to it's side.