The SARS-COV-2 pandemic has been affecting our lives for months. The effectiveness of measures against the pandemic can be tested and predicted by using epidemiological models. The Corona SEIR Workbench uses a SEIR model and combines a graphical output of the results with a simple parameter input for the model. Modelled data can be compared country by country with the SARS-COV-2 infection data of the Johns Hopkins University. Additionally, the R₀ values of the Robert Koch Institute can be displayed for Germany.
Nim is a mathematical game of strategy in which two players take turns removing objects from distinct heaps.
A server-based data backup stores copies of important data, runs automatically, manages multiple file versions and ensures the integrity of the stored data. Microsoft Windows Server 2008 and Windows Server 2008 R2 already have a large number of these features on board. The missing parts are provided by the open source compression software 7z.
The Logic Color Shifter has been based on the ideas of the color theory of Robert Delaunay and is a tool for a constant change of the visual color space, an infinite color wheel. A practical application for this Software is the simulation of color changes in Dot Matrix Holoprints.