diff --git a/8/3 - Watch the Pendulum.py b/8/3 - Watch the Pendulum.py
new file mode 100644
index 0000000..0ba48dd
--- /dev/null
+++ b/8/3 - Watch the Pendulum.py	
@@ -0,0 +1,5 @@
+from math import cos
+L = float(input())
+A = float(input())
+for T in range(10):
+   print( L * cos(A * cos(T * (9.8/L)**0.5)) - L * cos(A))