
The Greek mathematician Pitágoras studied studied the properties of the sections…

How to measure the height of a tree, a building only using one rule…

Simple demonstrations of the theorem that takes the name of this mathematician…

A form to measure which is your reaction time is resorting to a rule…

Simple way to calculate the volume of a sphere since Archimedes did it…

It relates the number pi to the launching of a needle on a lined surface…

One is to change discs in another post without locating a disc on smaller other…

We will verify that a cylinder and a cone fulfill certain properties…

How to turn two curls into a single squaring being used scissors and glue…

A surface of a single face and a single edge with surprising mathematical properties…

Measurer of distance using a sharpshooting laser and some other materials…

Simple form to demonstrate that the area of a circle is equal to the one of a rectangle…