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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 ...
Between 1962 and 1964 he developed various drawing machines from Meccano pieces, eventually producing a prototype Spirograph. Patented in 16 countries, it went on sale in Schofields department store in Leeds in 1965. A year later, Fisher licensed Spirograph to Kenner Products in the United States. In 1967 Spirograph was chosen as the UK Toy of ...
Many refused to come out of the tunnel, and as a result, the New York City Police Department arrested nine people. [14] Those arrested were between the ages of 19 and 22. [ 7 ] Of those arrested, five men were later arraigned in front of a Brooklyn judge on charges including criminal mischief , reckless endangerment and obstructing governmental ...
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 .
S. Willis Rudy, College of the City of New York 1847–1947, 1949. James Traub, City on a Hill: Testing the American Dream at City College, 1994. Paul David Pearson, The City College of New York: 150 years of academic architecture, 1997. Sandra S. Roff, et al., From the Free Academy to Cuny: Illustrating Public Higher Education in New York City ...
A pneumograph, also known as a pneumatograph or spirograph, is a device for recording velocity and force of chest movements during respiration. While spirometry measures respiratory rate and other markers of respiratory health via analysis of the airflow from the lungs during inhalation and exhalation, pneumography measures the respiratory rate ...
The Orteig Prize was a $25,000 reward (equivalent to $453,000 in 2024) [3] offered on May 22, 1919, by New York hotel owner Raymond Orteig to the first Allied aviator(s) to fly non-stop from New York City to Paris or vice versa. [2]