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There is a rule in mathematics that feels so obvious it barely seems worth stating. Yet accepting it leads to objects with no size, spheres that duplicate themselves, and sets that cannot be measured ...

I will never forget this one day when Kevin was a preschooler. We had an IEP meeting, and one of his proposed math IEP goals was to be able to visualize and identify what 2 of something looks like or ...

A 3D random walk can get very complicated very quickly, as shown in this simulation. Image credit: Tsvi Tlusty (Ulsan National Institute of Science and Technology, Ulsan, South Korea) and Jean-Pierre ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

I'm a highly experienced SE with diverse skills. I stay up-to-date with the latest tech and love sharing knowledge ...

Swallows a non-food solid object Adult suspects an object was swallowed Includes object found in the stool with no history of it being swallowed. Sometimes, a young child swallows an object when no ...

Proper formatting in your office's documents is a display of quality control and professionalism that your employees, clients and customers may appreciate. Making sure that appropriate text is ...