Added Physics example to Chapter 2#2

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jonnyroutley:physics_example

Commits on Nov 3, 2022

Added draft physics example code
jonnyroutley
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Added text from probmods example in relevant places, ensured code is functional and added reset option to animation
jonnyroutley
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Added unstable/almost unstable block configurations and reverted noise values to ones more reasonable
jonnyroutley
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Commits on Nov 4, 2022

Commits on Nov 10, 2022

Commits on Jan 3, 2023

cleaned up edits and moved some code into a new file within the pyro_webppl module. Also added a gif for online viewing
jonnyroutley
committed