diff --git a/02_Presentation/physics/lbm/finalBeam1.png b/02_Presentation/physics/lbm/finalBeam1.png
index c2650da77a676fdc666d3f0ff43b8226eda39b9e..f5725f12a5fdf4aad1844380732db00dbb999051 100644
Binary files a/02_Presentation/physics/lbm/finalBeam1.png and b/02_Presentation/physics/lbm/finalBeam1.png differ
diff --git a/02_Presentation/physics/lbm/fluidSolid1.gif b/02_Presentation/physics/lbm/fluidSolid1.gif
index 064e54c3e0f0f7a4186889755f81ec9c6f3d3233..a54b90ed62b0fd2b64048b3556945c3a5cca87ef 100644
Binary files a/02_Presentation/physics/lbm/fluidSolid1.gif and b/02_Presentation/physics/lbm/fluidSolid1.gif differ
diff --git a/02_Presentation/physics/lbm/fluidSolidF1.gif b/02_Presentation/physics/lbm/fluidSolidF1.gif
new file mode 100644
index 0000000000000000000000000000000000000000..797eec66c18756b40d14d0e8f184870b8802ca5f
Binary files /dev/null and b/02_Presentation/physics/lbm/fluidSolidF1.gif differ
diff --git a/02_Presentation/physics/lbm/lbm.md b/02_Presentation/physics/lbm/lbm.md
index c74df2e5008be6e2c485458a604a53ae51680b9d..49e58cf44e4f427054826fcf422d74571a640046 100644
--- a/02_Presentation/physics/lbm/lbm.md
+++ b/02_Presentation/physics/lbm/lbm.md
@@ -24,7 +24,10 @@
 <img src="./startBeam.png" height="300" />
 <img src="./finalBeam.png" height="300" /><br></br>
 
-<img src="./fluidSolid1.gif" width="60%" /><br></br>
+<img src="./fluidSolid1.gif" width="40%" />
+<img src="./fluidSolidF1.gif" width="40%" /><br></br>
+
+<img src="./startBeam1.png" height="300" />
 <img src="./finalBeam1.png" height="300" /><br></br>
 
 
diff --git a/02_Presentation/physics/lbm/startBeam1.png b/02_Presentation/physics/lbm/startBeam1.png
new file mode 100644
index 0000000000000000000000000000000000000000..8cf2a8952285ef2fd51d2b7d882953193c9c6929
Binary files /dev/null and b/02_Presentation/physics/lbm/startBeam1.png differ