The three-dimensional Collision of two Spheres

The central elastic to perfectly inelastic collision between two spheres is a fundamental function of a physics engine. Here, I explain the physics, the mathematics, and provide a complete implementation in C++.

15.08.2023

Kant

Immanuel Kant: Facsimile of the Akademieausgabe

Facsimiles of the Academy Edition are available at Archive.org, but not easily accessible. Here I provide links to the volumes and also directly to the included writings for quick access.

30.03.2023

Lecture

Philosophical Foundations of Sustanability

In the lecture series Shaping our Future, I first talk about a moral duty to sustainable development with regard to Derek Parfit and Hans Jonas. In the second part, I compare Robert Solow's concept of weak sustainability with Herman Daly's of strong sustainability in order to clarify what exactly is meant by sustainability.

09.11.2022

Lecture

Immanuel Kant and the Freedom of the Will

At the university of applied sciences Emden/Leer I held a guest lecture. Here I present a summary and a few photos of the university.

13.02.2022

Economics WebApp

Ysidro: The interactive Edgeworth-Box

For a presentation, lecture and studies: Change a utility function to see the indifference curves change shape and the Walrasian equilibrium move. Change prices to see the budget line turn and the Marshallian Demands move along it.

04.10.2020

Economics

Basic Terms of Microeconomics

This propaedeutic introduction explains 16 terms of microeconomics and aims to make the textbook-like article on exchange economy accessible to the weconomically interested layman.

20.09.2020

Economics

The Exchange Economy

In an exchange economy of two persons and two goods, the fundamental ideas of the Theory of General Equilibrium are explained: Pareto efficient allocations as the contract curve, the Walrasian equilibrium and the First Theorem of Welfare Economics. A digression on Edgeworth critically examines the assumption of perfect markets.

21.04.2020

C++

prime::namespace function templates

This function template makes it easy for you to handle prime numbers. This includes multithreading and latest innovations of the c++17 standard that have been implemented to keep your source code clean and your machine code small. It contains interfaces for all reasonable data types as an easy to use-feature and supports numbers of any size.

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