Line -- from Wolfram MathWorld

A line is a straight one-dimensional figure having no thickness and extending infinitely in both directions. A line is sometimes called a straight line or, more archaically, a right line (Casey 1893), to emphasize that it has no "wiggles" anywhere along its length. While lines are intrinsically one-dimensional objects, they may be embedded in higher dimensional spaces. Harary (1994) called an edge of a graph a "line." A line is uniquely determined by two points, and the

433 Three-Dimensional shapes – from Wolfram MathWorld

Möbius Strip -- from Wolfram MathWorld Mobius strip, Moebius strip, Geometry centers

Line -- from Wolfram MathWorld

Concept Schools – Department of Mathematics » Wolfram MathWorld

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Line -- from Wolfram MathWorld

Technology Zindabaad - Future Is Here - Heart Surface -- from Wolfram MathWorld A heart-shaped surface given by the sextic equation. (Taubin 1993, 1994). The figures above show a ray-traced rendering (left)

A standard pyramidal Galton board, from Wolfram MathWorld [28].