Spiral Drawn on Piece of Paper and Rolled Small 121×320 Medium 242×640 Large 387×1024 Download Tiff Original 907×2400 | (126.0 KB) Description Spiral with lines AB and CD drawn on piece of paper and rolled into a cylinder to form spiral running from A to D. Keywords cylinder, cylinders, draw, drawn, helix, line, lines, Model, piece of paper shown flat, roll, rolled, spiral, spirals Galleries Spirals Source: Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 439
