deletions | additions       diff --git a/figures/three/index3.html b/figures/three/index3.html  index e77217b..98c61df 100644  --- a/figures/three/index3.html  +++ b/figures/three/index3.html 
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var geometry, material, mesh;  var gravity = 1.0;  var ground_position = -200; -250;  var half_world_width = 500;  var simulation_stopped = true;