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.
I’m building a custom pleroma client so that my friends and I can have a cute, self-hosted social network to post about politics and art. Besides being much more visually interesting than our facebook messenger groupchat, e-worm also attempts to solve design problems around conversational, collaborative thinking. The biggest of these problems is the inherent ephemerality of our groupchat— it doesn’t really succeed as a collaborative thinking space because it has no long-term memory. When messages are constantly buried under new ones, it places the burden on us to remember previous conversations. So the ultimate design goal for e-worm is to create a self-archiving conversational interface that preserves thought and helps us keep thinking new things rather than going in intellectual circles.