How big is the blackboard in the Oxford Lecture Theatre? How big is the blackboard in the Oxford Lecture Theatre? How big is the blackboard in the Oxford Lecture Theatre? How big is the blackboard in the Oxford Lecture Theatre? How big is the blackboard in the Oxford Lecture Theatre? How big is the blackboard in the Oxford Lecture Theatre? How big is the blackboard in the Oxford Lecture Theatre? How big is the blackboard in the Oxford Lecture Theatre? How big is the blackboard in the Oxford Lecture Theatre? How big is the blackboard in the Oxford Lecture Theatre?
