public static RotationalStiffness MillinewtonMillimetersPerDegree <T>(this T value) =>
 RotationalStiffness.FromMillinewtonMillimetersPerDegree(Convert.ToDecimal(value));
 public void NumberToMillinewtonMillimetersPerDegreeTest() =>
 Assert.Equal(RotationalStiffness.FromMillinewtonMillimetersPerDegree(2), 2.MillinewtonMillimetersPerDegree());