The section contains both entertaining pop-science stories about modern mathematical problems, and animations that reveal well-known subjects in a new way.

More etudes — in the Russian version

Etudes

Mathematics and Technology4

Scientific tools1

Constant width curves3

Wonderful curves3

Quadratic surfaces3

Polyhedra’s inner geometry4

Polyhedra’s outer geometry6

Areas and volumes6

Wonderful bodies1

Formula geometry3

Paper geometry2

Geometrical optics3

Continuity2

Hinge mechanisms5

Tchebyshev's Mechanisms3

Points' best position2

Varios interesting subjects4

Historic2