diff --git a/README.md b/README.md
index 5a44725864adc6865dbb5bbc611c27ad26f7d876..36b561aec4d5d67a25c78e8288601190072089bd 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,8 @@
         -  Basic QR Code
             -  https://amiraa.pages.cba.mit.edu/3d_interfaces_recitation/1_Three.js/6_AR/hello-cube.html 
         -  [Creating Custom Codes](https://medium.com/arjs/how-to-create-your-own-marker-44becbec1105)
+    -  Physics
+        -  [Ammo.js](https://github.com/kripken/ammo.js/)
 
 ## Unity:
 - Examples: