Explorez Gif Animé, Répétition et plus encore !

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Get you best paper, cut a circle and fold it so that the circumference falls on a fixed point inside. Repeat, using random folds. Now see th...

Get you best paper, cut a circle and fold it so that the circumference falls on a fixed point inside. Repeat, using random folds. Now see th...

Alessandra Lopez y Royo has had enough of the free market academy and is voting with her feet | PugPig Content | Times Higher Education

Alessandra Lopez y Royo has had enough of the free market academy and is voting with her feet | PugPig Content | Times Higher Education

Gif et Géométrie !

Gif et Géométrie !

Hypotrochoids are the curves you get from rolling one circle inside another, as shown in this animation.  Spirographs allow you trace these for yourself.

Hypotrochoids are the curves you get from rolling one circle inside another, as shown in this animation. Spirographs allow you trace these for yourself.

J. Frans Gerritsen, «Entwicklung der Farbenlehre», Göttingen, 1984

J. Frans Gerritsen, «Entwicklung der Farbenlehre», Göttingen, 1984

mathani:  It’s my second birthsday today. I posted 50 times in the last year (145 in the first). Your reception has been great, thanks. Two posts in particular gathered million+ notes together!? Here’s to another year.  Also, I’m starting an alphabet series:  A for Astroid  Two circles with radii one-quarter and three-quarters the radius of the fixed circle are rolling inside. Points on their circumference both trace this four-cusp curve.

mathani: It’s my second birthsday today. I posted 50 times in the last year (145 in the first). Your reception has been great, thanks. Two posts in particular gathered million+ notes together!? Here’s to another year. Also, I’m starting an alphabet series: A for Astroid Two circles with radii one-quarter and three-quarters the radius of the fixed circle are rolling inside. Points on their circumference both trace this four-cusp curve.

Pablo Palazuelo

Pablo Palazuelo

Ahogy az egyik csúcs egy háromszög mentén csúszik a vízszintes tengely, a másik csúcs mentén csúszik a másik tengely.  A harmadik csúcsa, majd retraces ellipszis.  Leonardo da Vinci fedezte fel ezt.

Ahogy az egyik csúcs egy háromszög mentén csúszik a vízszintes tengely, a másik csúcs mentén csúszik a másik tengely. A harmadik csúcsa, majd retraces ellipszis. Leonardo da Vinci fedezte fel ezt.

Casadei SS14 - #casadeiworld #graphic #black&white

Casadei SS14 - #casadeiworld #graphic #black&white

Sphere is circumscribed by a cube and has a smaller cube inscribed within it. What is the ratio of the cube volumes?

Sphere is circumscribed by a cube and has a smaller cube inscribed within it. What is the ratio of the cube volumes?

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