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This arrow by mathematician and sculptor Kokichi Sugihara can’t point left

Posted on 2019/08/05 by Carl Robitaille
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This arrow by mathematician and sculptor Kokichi Sugihara can't point left. Here's how it works: It's 3D-printed with a bunch of curves our brains don't register. pic.twitter.com/Xa32GrI7ii

— Khai (@ThamKhaiMeng) August 4, 2019
Posted in illusions, mathématiques | Leave a reply

The common external tangent segment

Posted on 2019/08/05 by Carl Robitaille
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#FunFact: The common external tangent segment connecting any 2 tangent circles has a length equal to the GEOMETRIC MEAN of the radii of both circles. 😯 How to prove? 🤔(Source: @gogeometry). https://t.co/3RwqD4ki5M @geogebra #MTBoS #ITeachMath #geometry #proof #EdTech #math pic.twitter.com/fFIsxGFvMO

— Tim Brzezinski (@TimBrzezinski) August 5, 2019
Posted in mathématiques | Leave a reply

Side-Stepping of the Triple Pendulum on a Cart

Posted on 2019/08/04 by Carl Robitaille
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A huge challenge to chaos is posed by this diligent robot, balancing a triple pendulum in few seconds https://t.co/OrJMkIjOy6 pic.twitter.com/R1YZ84ie33

— Massimo (@Rainmaker1973) August 4, 2019
Posted in créativité, mathématiques, physique | Leave a reply

O RLY? Self-Documenting Code

Posted on 2019/08/04 by Carl Robitaille
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truth is bitter pic.twitter.com/2qTW16OXdC

— nixCraft 🐧 (@nixcraft) August 4, 2019
Posted in drôle, programmation | Leave a reply

Milky Way galaxy is warped and twisted, not flat

Posted on 2019/08/04 by Carl Robitaille
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Milky Way galaxy is warped and twisted, not flat

Posted in astronomie | Leave a reply

Bright Fireball Explodes Over Ontario, Meteorite Fragments Might Have Reached the Ground

Posted on 2019/08/04 by Carl Robitaille
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Bright Fireball Explodes Over Ontario, Meteorite Fragments Might Have Reached the Ground

Posted in astronomie, géologie | Leave a reply

How Space Might Have Shaped Our DNA

Posted on 2019/08/04 by Carl Robitaille
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Posted in biologie, physique | Leave a reply

Regardez comme c’est beau, les enfants!

Posted on 2019/08/04 by Carl Robitaille
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Regardez comme c’est beau, les enfants!

Posted in drôle, voyage | Leave a reply

This problem seems hard, then it doesn’t, but it really is

Posted on 2019/08/04 by Carl Robitaille
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Posted in mathématiques | Leave a reply

Hidden inside every square is a 3-4-5 (right) triangle!

Posted on 2019/08/02 by Carl Robitaille
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Did you know? Hidden inside every square is a 3-4-5 (right) triangle! 😯 How can we formally prove THIS true? 🤔(Source: @gogeometry). https://t.co/77ExcEzFyx @geogebra #MTBoS #ITeachMath #geometry #proof #EdTech #math #maths #MathEd #MathEdTech #FigureThat #GeomChat pic.twitter.com/G5YG9eNaTn

— Tim Brzezinski (@TimBrzezinski) August 2, 2019
Posted in mathématiques | Leave a reply

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