diff --git a/Nodes/sine.py b/Nodes/sine.py
new file mode 100644
--- /dev/null
+++ b/Nodes/sine.py
@@ -0,0 +1,21 @@
+"""node that generates a sine wave"""
+
+
+class SineGenerator(Node):
+    def op(self, input, output, stateaccess):
+
+        # input and output have names
+        output.sin = stateaccess.magnitude * math.sin(stateaccess.phase+input.time)
+
+        """
+        # dict-style access for names with spaces
+        output['sin'] = input['ti me']
+        # underscore magic for accessing names with spaces-- the port object makes
+        # this work
+        output.sin=input.ti_me
+
+        input.time = input.money
+        """
+
+    def getports(self):
+        return OutputPort('sin'), InputPort('time'), InputPort('money')