I was an adult before I actually used my first slide rule. I purchased an antique one, and also an "antique" book that described how to use it. I'd putz around with it from time to time, always discovering something with a cool factor of 5.7 or better.
But now I've lost or misplaced both.
Should I go on ebay to replace these items? Or is this wasted time? Clearly, any answer a new slide rule might give me is much more easily, precisely, and readily obtained using one of the several calculators I own.
Still, I wonder...