**Visualization of the theory of relativity.**

Online papers, images, movies and paper models by
Ute Kraus and Corvin Zahn
(Institut für Physik, Universität Hildesheim, Germany).

This is an English version of the German site

**www.tempolimit-lichtgeschwindigkeit.de**

The theory of relativity holds a certain fascination for many people. At the same time it is often regarded as very abstract and difficult to understand.

Part of the difficulties in understanding relativity are due to the fact that relativistic effects contradict everyday experience. Motion, for example, is a familiar process and everybody "knows from experience" that it entails neither time dilation nor length contraction. A flight with half the speed of light could correct this misjudgement but is not on offer.

A possible alternative are simulations. Images, films and virtual reality let us in a sense experience relativistic flights, gravitational collapse, compact objects and other extreme conditions.

25 Apr 2018 18:00 GMT

**New contribution: Sector models - a toolkit for teaching general relativity:
III. Spacetime geodesics**

Sector models permit a model-based approach to the general theory of
relativity. The approach has its focus on the geometric concepts and
uses no more than elementary mathematics. This contribution shows how
to construct the paths of light and free particles on a spacetime
sector model. Radial paths close to a black hole are used by way of
example. We outline two workshops on gravitational redshift and on
vertical free fall, respectively, that we teach for undergraduate
students.
Sector models - a toolkit for teaching general relativity:
III. Spacetime geodesics.

25 Apr 2018 18:00 GMT

**New contribution: Sector models - a toolkit for teaching general relativity: II. Geodesics**

Sector models are tools that make it possible to teach the basic
principles of the general theory of relativity without going beyond
elementary mathematics. This contribution shows how sector models can
be used to determine geodesics. We outline a workshop for high school
and undergraduate students that addresses gravitational light
deflection by means of the construction of geodesics on sector models.
Geodesics close to a black hole are used by way of example.
Sector models - a toolkit for teaching general relativity: II. Geodesics.

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Authors: Ute Kraus, Corvin Zahn,
Date: 2019-03-05 20:38:07

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All contents copyright (C) 2001-2018 Ute Kraus, Corvin Zahn. All rights reserved. For more information see Copyright.

About Us. Datenschutz.

All contents copyright (C) 2001-2018 Ute Kraus, Corvin Zahn. All rights reserved. For more information see Copyright.