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Spirograph is a geometric drawing device that produces mathematical roulette curves of the variety technically known as hypotrochoids and epitrochoids. The well-known toy version was developed by British engineer Denys Fisher and first sold in 1965.
The first shipment of Spirograph arrived just before Christmas in 2012. The Spirograph (along with Kahootz' Lite-Brite) was exhibited at the 2013 Sweet Suite 13 [4] show in Chicago, Illinois and the 2014 American International Toy Fair in New York City, New York. [5] Since then, Kahootz Toys has expanded and released numerous new products and ...
As a young man in 1827 he had developed a so-called "Speiragraph", an early prototype for the spirograph. He evidently continued on with experiments and inventions, and on 27 February 1860 received British patent no. 537 for 28 monocular and stereoscopic variations of cylindrical stroboscopic devices (see zoetrope ). [ 7 ]
Among his other patents were the parabolagraph, the spirograph, the electric bell used in trains, and an electric arc lamp of his own design. [5] Abakanowicz published several works, including works on statistics , integrators and numerous popular scientific works, such as one describing his integraph .
The Read-Aloud Handbook, 1982, The New Read-Aloud Handbook, 1989,The Read-Aloud Handbook, Sixth Edition, 2006. Reading Aloud: Motivating Children to Make Books Into Friends, Not Enemies (film), 1983. Turning On the Turned Off Reader (audio cassette), 1983. (Editor) Hey! Listen to This: Stories to Read Aloud, 1992. (Editor) Read all About It!:
Spirograph images are hypotrochoids, with curved "sides". Polytopes (like the runcinated 6-simplexes) though have straight line segments. Andy Dingley 15:51, 27 December 2016 (UTC) I did overlook that difference. Thanks. My parents bought me a Spirograph round 1972. 83.85.143.141 16:11, 27 December 2016 (UTC)
Reach Out and Read logo. Reach Out and Read, Inc. (ROR) is a US nonprofit organization that promotes reading. Reach Out and Read is a national early literacy organization working directly with pediatric care providers to share the lifelong benefits that result from families reading aloud to their children every day.
Williams is creating a line of Shakespeare plays called the Readers' Editions, edited and designed specifically for reading aloud in a Shakespeare reading group, [29] independently published as part of iReadShakespeare.org. Williams, Robin P. Sweet Swan of Avon: Did a Woman Write Shakespeare?. USA: Wilton Circle Press; 2006. ISBN 978-0-321-42640-6