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Valentine's day is so close
Valentine's day is so close
What hides this stereogram?
Brain Teasers
[2222] What hides this stereogram? - Stereogram - 3D Image - #brainteasers #stereogram #3Dimage
2016-05-17
FrisbeeIn 1957, the Wham-O Company developed the first frisbee. A representative of the company got the idea for the product when he saw some truck drivers from the Frisbee Pie Co. of Connecticut showing Yale students how to throw pie pins in the air. On 26 Dec 1967, a U.S. patent was issued to the Wham-O Mfg. Co. for their improvement of the Frisbee (U.S. No. 3,359,678) - an “aerodynamic toy to be thrown through the air … in throwing games.” It was described as a saucer shaped throwing implement with a series of concentric discontinuities adjacent the rim on its convex side.Image: patent diagrams of the Frisbee. |