Monthly Archive: April 2014

What is Pi?

Engineers use pi all the time for their calculations, but what the heck is pi anyway?  Bob and Sparky break it down for us in this video. Here is the video transcript: Let’s talk...

How to Read a Metric Micrometer

A micrometer is used to take very precise measurements. There are different kinds (inside, outside, depth, inch), just look it up on Wikipedia. But here I have a metric one. This one measures to...