Engineering is a line of work where mistakes can be costly on many levels, and some would think that being in this profession is no laughing matter. Fortunately, most engineers are in possession of a sense of humor and are eager to celebrate National Pun Day, May 15, as, well, only engineers can. Be forewarned before proceeding further.

Did you hear about the folks who invented the escalator? They were mechanically inclined.

After suffering weak gain at the poles, the National Transistor Party has been trying to energize their base.

What did the electrical engineer say when he got shocked? That hertz!

Two atoms are walking down a street, and one exclaims, “Wait! We must go back, I’ve lost an electron!” The other atom replies, “Are you sure?” The first atom answered, “Of course, I’m positive!” (Never trust an atom, they make up everything).

Did you hear about the company that sells elastomeric insulators? Their motto is "Resistance is butyl."

Keep your ion the prize and share some groan-worthy punny stuff in the comments below.

To contact the author of this article, email shimmelstein@globalspec.com