# Monthly Archives: July 2019

## Discrete K-surfaces

The above picture shows examples of K-surfaces, i.e. surfaces with constant Gaussian curvature $K=-1$. The picture was made by Nicholas Schmitt and is part of the GeometrieWerkstatt Gallery. Instead of writing at length about the theory of K-surfaces and their … Continue reading

A pendulum is a body suspended from a fixed support so that it swings freely back and forth under the influence of gravity. A simple pendulum is an idealization of a real pendulum—a point of mass $$m$$ moving on circle … Continue reading