pylons
Pylons
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.
Electrical pylon near Gary, Indiana
The Pylon Appreciation Society
A WebsiteIt's simple: the Pylon Appreciation Society is a club for people who appreciate electricity pylons.
Pylon of the Month
A BlogElectrical pylon in Birmingham, England.
The Pleasure of Observing
Abbreviation
I generally do not like to abbreviate behavioral notes. An important detail may be ignored or considered irrelevant and discarded because it lacks a discrete category on the list. It is often an anecdotal event that offers special insight.
Beyond dry facts
If one has a personal knowledge of the individual animals being studied, observations in field notes cease to be impersonal, and an observer’s empathy can lead beyond dry facts to better intuition and insight.
A study should persist
Since we cannot interview the subject, we can only infer the past from the present. Ideally, a study should persist for at least the life span of an animal.
Precious intangible values
The “precious intangible values” of this wilderness.
Independent fragments of existence
You cannot divide me into independent fragments of existence.
— The Last Panda, 1993
Panda routes
A detailed route of a panda foraging on bamboo shoots, showing the number of shoots eaten and droppings deposited (black spots) on May 31, 1982.