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A straightedge or straight edge is a tool used for drawing straight lines, or checking their straightness. If it has equally spaced markings along its length, it is usually called a ruler . Straightedges are used in the automotive service and machining industry to check the flatness of machined mating surfaces.
Doubling the cube is the construction, using only a straightedge and compass, of the edge of a cube that has twice the volume of a cube with a given edge. This is impossible because the cube root of 2, though algebraic, cannot be computed from integers by addition, subtraction, multiplication, division, and taking square roots.
Political writer and translator. Author of the book Sober Living for the Revolution: Hardcore Punk, Straight Edge, and Radical Politics. [43] Gail Greenwood: Bassist for bands like Belly and L7. [44] George Stroumboulopoulos: Canadian television and radio personality. [45] Glen E. Friedman: Photographer, artist and political activist. [46] [47 ...
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Using a handheld gouger to cut a design into linoleum for a linocut print Linocut printing; using a design cut into linoleum to make a print on paper. Since the material being carved has no directional grain and does not tend to split, it is easier to obtain certain artistic effects with lino than with most woods, although the resultant prints lack the often angular grainy character of ...
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Right cutting and left-cutting compound-action snips, respectively; the green snips are an offset-pattern Straight-cutting compound-action snips. Compound-action snips, also known as aviation snips, maille snips or sheet snips, are the most popular type of snips as they are able to exert a higher force compared to other types of snip of the same size, because of the design of their linkage.
The fold-and-cut problem asks what shapes can be obtained by folding a piece of paper flat, and making a single straight complete cut. The solution, known as the fold-and-cut theorem, states that any shape with straight sides can be obtained. A practical problem is how to fold a map so that it may be manipulated with minimal effort or movements.