Large slide rules were used in front of the classroom for teaching purposes. They were hoisted right over the blackboard (a REAL blackboard) in front of the class. Yeppers, it took a whole semester to master one of those things. 5' slide rules weren't the largest. I've seen bigger in large classrooms.
Slashdot Mirror
Large slide rules were used in front of the classroom for teaching purposes. They were hoisted right over the blackboard (a REAL blackboard) in front of the class. Yeppers, it took a whole semester to master one of those things. 5' slide rules weren't the largest. I've seen bigger in large classrooms.