Lance Dean

These days we hear the term “light pollution” quite frequently, but, what exactly is it and how can we better understand the term? 

Question: What are the important factors to consider in bridge design (beam, trestle arch or truss)?

Reader’s question: “Why are some food containers ribbed and others are not?” Thank you for this question. My first job as an engineer was for Continental Can Co. during the summer of my junior year in college. My project was to speed up beer can production from nine cans/second to ten cans/second. This was when […]

Our columnist explains not just what rebar is, but how it works.

This column is a place where anyone can ask about anything pertaining to things of a mechanical nature. This month: what is a ‘bar ditch’?