diff --git a/1-foundations/0-primers/03-ros-primer.ipynb b/1-foundations/0-primers/03-ros-primer.ipynb
index df23cc6..3ebd4a5 100644
--- a/1-foundations/0-primers/03-ros-primer.ipynb
+++ b/1-foundations/0-primers/03-ros-primer.ipynb
@@ -145,22 +145,6 @@
                 "```"
             ]
         },
-        {
-            "cell_type": "markdown",
-            "metadata": {},
-            "source": [
-                "\n",
-                "#### roslaunch\n",
-                "\n",
-                "The roslaunch command allows you to run multiple ROS nodes with a single command. It also allows you to set parameters on the nodes, and to specify remapping rules for topics. For example, to launch the turtlesim_node from the turtlesim package, you can use the following command:\n",
-                "\n",
-                "```bash\n",
-                "# stop the turtlesim_node if it is running\n",
-                "# in a new terminal run turtlesim_node using roslaunch\n",
-                "roslaunch turtlesim turtlesim_node.launch\n",
-                "```"
-            ]
-        },
         {
             "cell_type": "markdown",
             "metadata": {},