spacetime bismar scales

This site was created as supporting material for the article:

The bismar scale and elastic collisions: a geometric analogy

Authors: Xabier Prado , Angel Paredes , Ivan Area, Jose Manuel Domınguez Castiñeiras , Jorge Mira

2024 Eur. J. Phys. 45 035009 DOI: 10.1088/1361-6404/ad3d42

New: Cross-ratio in projective geometry

Dynamic geometric apps

Measuring masses with a bismar scale (Figure 2)

Measuring masses with a spacetime bismar-type scale

Classic collision (Figure 3)

Relativistic collision (Figure 4)

Explaining Compton scattering with bismar-type diagrams

One dimension (Figure 5)

Two dimensions (Figure 6)

Dimensional scaffolding

Didactic proposal

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