diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..0defb5ccec4d2cc3c131814f89a29ce5605ebac7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+**/*~
diff --git a/Environment/FlatAtmosphere/FlatAtmosphere.h b/Environment/FlatAtmosphere/FlatAtmosphere.h
new file mode 100644
index 0000000000000000000000000000000000000000..8b137891791fe96927ad78e64b0aad7bded08bdc
--- /dev/null
+++ b/Environment/FlatAtmosphere/FlatAtmosphere.h
@@ -0,0 +1 @@
+
diff --git a/Framework/Units/Units.h b/Framework/Units/Units.h
new file mode 100644
index 0000000000000000000000000000000000000000..8b137891791fe96927ad78e64b0aad7bded08bdc
--- /dev/null
+++ b/Framework/Units/Units.h
@@ -0,0 +1 @@
+
diff --git a/Main/Environment.h b/Main/Environment.h
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/Main/Stack.h b/Main/Stack.h
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/Processes/NullModel/NullModel.cc b/Processes/NullModel/NullModel.cc
new file mode 100644
index 0000000000000000000000000000000000000000..7d2ab743cbc4cd4714476b4ea46b10ef538d83f2
--- /dev/null
+++ b/Processes/NullModel/NullModel.cc
@@ -0,0 +1 @@
+#include _Physics_NullModel_NullModel_h_
diff --git a/Processes/NullModel/NullModel.h b/Processes/NullModel/NullModel.h
new file mode 100644
index 0000000000000000000000000000000000000000..07cf2c0427fda7e1a6e8286f960ec36d9199b24c
--- /dev/null
+++ b/Processes/NullModel/NullModel.h
@@ -0,0 +1,23 @@
+#ifndef _Physics_NullModel_NullModel_h_
+#define _Physics_NullModel_NullModel_h_
+
+namespace physics {
+
+  namespace processes {
+
+    class NullModel {
+
+    public:
+      NullModel();
+      ~NullModel();
+
+      void init();
+      void run();
+      double GetStepLength();
+    };
+    
+  }
+}
+
+#endif
+