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A lens is a transmissive optical device which affects the focusing of a light beam through refraction. A simple lens consists of a single piece of ... more

A triangle is a polygon with three edges and three vertices. In a scalene triangle, all sides are unequal and equivalently all angles are unequal. The area ... more

In crystallography, atomic packing factor (APF), packing efficiency or packing fraction is the fraction of volume in a crystal ... more

The MÃ¶bius strip or MÃ¶bius band, is a surface with only one side and only one boundary component. The MÃ¶bius strip has the mathematical property of being ... more

The MÃ¶bius strip or MÃ¶bius band, is a surface with only one side and only one boundary component. The MÃ¶bius strip has the mathematical property of being ... more

The MÃ¶bius strip or MÃ¶bius band, is a surface with only one side and only one boundary component. The MÃ¶bius strip has the mathematical property of being ... more

Quadrilateral is a polygon with four sides (or edges) and four vertices or corners. The area of a convex quadrilateral can be expressed in trigonometric ... more

Radiation pressure is the pressure exerted upon any surface exposed to electromagnetic radiation. Radiation pressure implies an interaction between ... more

In geometry, a pyramid is a polyhedron formed by connecting a polygonal base and a point, called the apex. Each base edge and apex form a triangle. It is a ... more

A quadrilateral is a polygon with four sides (or edges) and four vertices or corner. An equidiagonal quadrilateral is a convex quadrilateral whose two ... more

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