diff --git a/README.md b/README.md
index 7e86ded..486e1e0 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # scaling
 
-Convert quantities between model and prototype scale using Froude similarity.
+Convert quantities between model and prototype scale using Froude and Reynoolds similitude.
 
 ## Installation