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Grow With Sphero – Spherographs

Sphero YouTube Channel – 5.13.19 (5.9.19)

 

Did you know that some of the earliest version of the Spirograph® date back back to nearly 200 years ago? Since then, these geometric drawing tools and toys have been used by mathematicians, engineers, and even bankers! In 1965, British engineer Denys Fisher introduced to the world what we now know as Spirograph®.

Source: Grow With Sphero – Spherographs

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