diff --git a/img/membrain.png b/img/membrain.png
new file mode 100644
index 0000000..7b98c45
Binary files /dev/null and b/img/membrain.png differ
diff --git a/src/root/graphics.html b/src/root/graphics.html
index b061b98..1eb21a4 100644
--- a/src/root/graphics.html
+++ b/src/root/graphics.html
@@ -20,6 +20,7 @@
     <img src="doppler.png"></img>
     <img src="relanoise.png"></img>
     <img src="skeinring.png"></img>
+    <img src="membrain.png"></img>
 </div>
 
 </div>