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.
The feeling of fortuitous gratitude at coming across unexpected information is something most of us who’ve done any research, have experienced — that kismet of finding the perfect book, one spine away from the one that was sought. In the field of art and image research, this sparking of transmission, of sequence and connection, happens on a subconscious level.
…Why is the vernacular image still being dismissed as ephemera? Why is its study not being prioritized? All languages are alive, but visual language is galactic. Keywords are not eyeballs, and creating rutted pathways to follow is the antithesis of study. A century of visual language, knowledge, and connectivity is marching toward a narrow, parsimonious basement of nomenclature. The NYPL takes a step backward if it models its shelves and research on a search engine. Spontaneity is learning. Browsing is research.