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.
Back before COVID-19 hit the global scene, I thought it would be pleasant to have a list of the good things in life. This list wouldn’t be an exhaustive account of all the checked boxes on Maslow’s Hierarchy of Needs, but rather would document small pleasures which evoke some kind of clear and specific emotional response. If I had The Sads, I could pull up this list and sink down into the sensory details of, say, that strong hit of pine scent you randomly get on a hiking trail.
Now that we’re all in the thick of this pandemic, this new tiny side project—Good Things—has offered me a peaceful little portal to things I miss. Your mileage may vary, but I’ve found that reading my personal list of good things can be comforting as I help protect my community by sheltering in place.