Not all the towers along a transmission line are identical. Look closely at a tower where the line makes a sharp turn and you will likely find it is wider and beefier than other towers along the route. The added strength and weight are needed to resist the unbalanced pull of the conductors, which might overturn an ordinary tower. These special towers are called deviation or angle towers.
The transmission-line tower everybody knows is an Erector Set latticework of steel girders and diagonal braces. The techniques for designing and building these towers are the same ones used in constructing steel bridge trusses or crane booms. The individual pieces can be made cheaply from rolled steel and then bolted together on the site. This last point is more important than it might seem: transporting a fully assembled tower 100 feet tall is an awkward and expensive business.
He was without doubt the most inquisitive human I have ever met. His insatiable curiosity was not limited or distracted by his knowledge or expertise, nor was it casual or passive. It was ferocious, energetic and restless. His curiosity was practiced with intention and rigor.
Many of us have an innate predisposition to be curious. I believe that after a traditional education, or working in an environment with many people, curiosity is a decision requiring intent and discipline.
In larger groups our conversations gravitate towards the tangible, the measurable. It is more comfortable, far easier and more socially acceptable talking about what is known. Being curious and exploring tentative ideas were far more important to Steve than being socially acceptable.
Our curiosity begs that we learn. And for Steve, wanting to learn was far more important than wanting to be right.