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.
It took two decades for HGTV and its ilk to streamline the process of creating design hegemony — to perfect the concept of having multiple shows congeal around the same aesthetic rather than let them exist at the whims of their individual hosts, as was more the case in the 2000s. While previous eras of design (think midcentury modernism) were spearheaded by architects, interior designers, and other tastemakers, in the late ’90s, capital-A Architecture lost interest in the home — deconstructivist ideas and new, high-tech forms were better suited to museums and universities — and a coalition of real estate developers, home improvement and furniture stores, and TV decorators stepped in to take their place. The worlds of high culture and popular consumption in residential design have never been more separate, and, in this critic’s opinion, both suffer as a result.