energy
Tracing Power Lines with the Pylon Appreciation Society
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.
A haunting, syncopated music
"Rappers" on the roof of the electrostatic precipitator knock the accumulated dust free, letting it fall into the storage hopper. Each rapper is the size and shape of a baseball bat. Inside is an electromagnet that pulls a steel plunger upward, then allows it to fall again, producing a sharp knock. The rappers are energized at seemingly random intervals, producing a haunting, syncopated music. (The rhythm seemed more modern jazz than rap.)
Safety cut rope axe man
In the first nuclear reactor, constructed by Enrico Fermi in 1942 under the bleachers of the University of Chicago football stadium, the control rods were held up by a manila rope. A man with an axe was told to cut the rope if the reactor got out of hand. This "safety cut rope axe man" is supposedly the origin of the term SCRAM for an emergency shutdown procedure.
Color coding
Telephone wires erupt in a multicolor cascade in a ground-level, pedestal-type splice case on a city street.
Dividing the set of 10 colors into two contrasting groups of 5 allows for exactly 25 combinations with one color from each group; thus, each pair in a bundle can be uniquely colored. A similar color code is applied to the ribbons that bind together all the pairs in a bundle, and to those of the superbundles. The result is highly festive! A specific wire might be identified as the blue-red conductor within the orange-black bundle within the brown-yellow superbundle.
Meditations
Gravity without affectation
From Sextus: The idea of what it means to live in accordance with nature; gravity without affectation, and a careful regard for the interests of one's friends.
Flesh and a bit of breath
Whatever it is that I am is flesh and a bit of breath.
Any life
Even if you were to live for three thousand years or ten times as long, you should still remember this, that no one loses any life other than the one that he is living, nor does he live any life other than the one that he loses, so the shortest life and the longest amount to the same.
A little thing
Cast everything else aside, then, and hold to these few truths alone; and remember, furthermore, that each of us lives only in the present, this fleeting moment of time, and that the rest of one's life has either has either already been lived or lies in an unknowable future. The space of each person's existence is thus a little thing, and little too is the corner of earth on which it is lived.
Praise has no part in it
Everything that is in any way beautiful is beautiful of itself and complete in itself, and praise has no part in it; for nothing comes to be better or worse for being praised.
Carrying a corpse around
You are a little soul carrying a corpse around.
As Epictetus used to say.
Avenge yourself!
The best way to avenge yourself is not to become as they are.
The clapping of tongues
(for praise from the crowd is simply the clapping of tongues)
Giving up the struggle
How shameful it is that, in this life, when your body does not give up the struggle, your soul should do so first.
Why?
The cucumber is bitter? Then cast it aside. There are brambles in the path? Step out of the way. That will suffice, and you need not ask in addition, "Why did such things ever come into the world?"
Poured
The light of the sun seems to be poured down, and to be poured, indeed, in every direction, but not poured away.
Wanting for nothing
Some day, will you be satisfied and want for nothing, yearning for nothing, and desiring nothing, animate or inanimate, to cater to your pleasures?
Laughter
—and my heart laughed within me.