You may have noticed in my previous post that DG was using a slide rule to do the calculations. He borrowed it from my computer museum. He’s an old-fashioned kind of guy, you know.
Here is a photo of the slide rule in action.
Back in 1965, on my way to college, I went to our local TG&Y Five and Dime store and bought this Sterling Slide Rule for $3.00. Yep. I’m that old. And 3 bucks was a lot more money back then too. A cup of coffee cost 25 cents, not……… um…….. 3 bucks.
Anyway, I took that slide rule to college and used it to get a B.S. in Physics. Scary, hunh?
DG borrowed it to do the calculations on our hit rate compared to The Google hit rate. Here is a closer photo of the rule doing the calculations.
As you can plainly see, we are dividing 250,000 by 62,500 to come up with the answer, 4.
What? You can’t see that? Here’s a visual aid.
In the red oval on the left the 62.5 on the C scale is set over the 250 on the D scale indicating a division operation, and in the red oval on the right, we read the answer 4 under the 1 at the end of the C scale. Easy peasy.
What? You don’t know how to use a slide rule? Egad! They used to teach that stuff in grade school.
What’s that laughter I’m hearing?