About Objects - Completed

Lessons Learned:
	1- everything <i>is an object => anything.is_a(Object) == true </i>
	2- every object can be converted to string using the to_s method
	3- objects can be inspected using the *inspect* method
	4- every object has an id that can be accessed using object_id method .. all ids are unique
	5- small integers have fixed ids that follow the rule (fn n => 1 + n * 2)
	6- objects can be cloned (creating new objects) using the clone method. cloned objects are not equal.
		also cloned objects have different ids