To illustrate the Pythagorean Theorem, makers of geometric models have long made models with pieces that could be arranged either as a square with a side equal to the length of the hypotenuse of a ...

Around 1900, mathematicians across the world acquired physical models, both to illustrate concepts they taught and to demonstrate their familiarity with new ideas. They frequently purchased models ...

It’s important for us to first differentiate this as the "Vent" variant of the Geometric Future Model 5 (aka M5). A piece of tempered glass replaces both the meshed and the logoed lower portions of ...