diff --git a/physics/physics_factory.py b/physics/physics_factory.py
index 7ac3a327..b58b5e04 100644
--- a/physics/physics_factory.py
+++ b/physics/physics_factory.py
@@ -7,7 +7,7 @@ class PhysicsFactory:
     self._handler = handler.lower().replace(' ', '_')
     self._city = city
     self.factory()
-
+#samples
   def us_new_york_city(self):
     UsNewYorkCityPhysicsParameters(self._city)