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The second, outer, cylinder is printed with the slide rule's primary logarithmic scale in the form of a 50-turn helix 12.70 metres; 500 inches (41 ft 8 in) long with annotations on the scale going from 100 to 1000. A brass tube with a mahogany cap at the top is a slide fit into the first cylinder.
In slide rule terminology, "folded" means a scale that starts and finishes at values offset from a power of 10. Often folded scales start at π but may be extended lengthways to, say, 3.0 and 35.0. Folded scales with the code subscripted with "M" start and finish at log 10 e to simplify conversion between base-10 and natural logarithms. When ...
To extract a cube root using a slide rule with only C/D and A/B scales, align 1 on the B cursor with the base number on the A scale (taking care as always to distinguish between the lower and upper halves of the A scale). Slide the slide until the number on the D scale which is against 1 on the C cursor is the same as the number on the B cursor ...
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Whether you have a big yard or a small deck, string lights can add charm and sparkle to your space. This 60-foot string is heavy-duty, dimmable weatherproof and shatterproof.
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USA Trains is a manufacturer of G scale model railroad products that started out as Charles Ro Manufacturing Company. [1] They offer two different scale sizes of trains that use the same track; the "Ultimate Series," which is 1:29 scale, and the "American" and "Work Trains" series which is 1:24 scale.