'Before calculators were common, every student had this jutting from his pocket...& we liked it!'
Slide rule
...AND WE LIKED IT!: Before calculators were common, every student had this jutting from his pocket...& we liked it!
Before calculators were common, every student had this jutting from his pocket...& we liked it!
Before calculators were common, every student had this jutting from his pocket...& we liked it!
...AND WE LIKED IT!
Slide rule
...AND WE LIKED IT!