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parabolic Answered

I was wondering exactly what defines a metal as parabolic. not being ferrous?

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user
Goodhart (author)2007-12-06

A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone or by the locus of points equidistant from a fixed line and a fixed point not on the line. (i.e. a bowl shape constructed in such a fashion as to focus energy {light, radio waves, etc} onto a point at a specific distance from the parabola). Parabolic: An arched shape.

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user

well I know ferrous material blocks signals by absorbing them, not reflecting them so I was wondering if you make a parabolic reflector out of non-ferrous metal.

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user

. Metals are not parabolic. Parabolic refers to a shape (see Goohart's explanation). . Yes. Aluminum (non-ferrous) is commonly used for reflectors and radiating elements.

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user

yeah thats what I was after :)

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