Paul Graham Raven's "Introduction to infrastructure fiction" is a great, 20 minute explanation of why infrastructure should matter to artists and why art should matter to civil engineers. The invisible ubiquity and vital importance of infrastructure means that it's something we should be talking about, and that we're not talking about.
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On the East Coast of the US, electric demand is so high that utility companies can't take major transmission lines out of commission for maintenance and repair. Instead, workers fly up to the affected cable in a helicopter and work on the line while it's live — coursing with electricity. The helicopter hovers next to the line and the lineman leans out of a little bucket on the side and does his or her job, protected from electrocution by the same loophole that allows birds to safely land on those lines. As long as the entire contraption — lineman and helicopter — don't create a pathway from an area of high energy (the powerline) to an area of lower energy (the ground, for instance, or another power line that operates at a lower voltage) they're good to go. In order to do that, they have to energize the helicopter to the same voltage as the line.
Also check out this longer video with GoPro-style footage of helicopter-assisted transmission line repair and a British documentary following some of the men who do this job. Around six minutes in, the documentary has a nice explanation of how the workers energize the helicopter without killing themselves. Also, according to one of the linemen, "chicks dig it".
If you enjoy the irony in the fact that the great East Coast blackout of 2003 was largely caused by a few untrimmed trees, then you're going to love Jon Mooallem's account of how America's squirrels are wreaking havoc on America's electricity system.
Using a Google news alert, he's cataloged 50 squirrel-caused power outages in 24 states — and that's just since Memorial Day. These aren't small outages either. Several of them have cut power to thousands of people at a time. Back in 1994, a squirrel took out the Nasdaq. These are kamikaze raids and they've led to an interesting phenomenon — technology developed specifically to protect our infrastructure from furry, tree-hopping rodents.
Pictured: The face of pure evil, a Creative Commons Attribution (2.0) image from binaryape's photostream
The American electric grid averages 90-214 minutes of blackout time per customer, per year. And that's not counting blackouts caused by natural disasters. Meanwhile, between 2000 and 2006, the electricity industry put less than 2/10 of 1% of revenues into research and development. (You can read more about this in a BoingBoing feature I wrote last year
.) Yesterday, the White House released a report
calling for increased spending to upgrade and overhaul this aging — but incredible important — infrastructure. — Maggie
Elon Musk wants to build a pneumatic tube transportation system capable of whisking people from San Francisco to Los Angeles in 30 minutes. (Xeni told you about this back in July.)
Technologically speaking, it's a perfectly possible thing to do, writes Tim Fernholtz at Quartz. The problem is the high cost of infrastructure development, something have everybody (whether they want to built a train, a highway, or a futuristic hyperloop) tends to underestimate. That's particularly a problem given the fact that whole idea behind Musk's hyperloop is that it could be a cheaper replacement for an expensive high-speed rail line already under development.
Noted tax-avoiders Thames Water's press release trumpets the news that they have excavated the largest ever "fatberg" -- a technical term denoting a huge, impacted lump of "festering food fat mixed with wet wipes" -- from a London sewer.
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The "close-door" button in the elevator, the crosswalk button at the intersection, even the thermostat in your office — there's a good chance that they're all placebos
. Over the last 20 years or so, many (though, weirdly, not all) of these buttons have become technically useless, but are left in place both because it's expensive to replace existing equipment and because, psychologically, they still serve a purpose. — Maggie
In the 1870s, a French geographer proposed digging a canal from the Mediterranean to flood a low-lying part of the Sahara Desert
. He pitched it as good for business and good for local environments, writes Ron Miller at i09. But I can't help but think of Plagues and Pleasures of the Salton Sea
— a documentary about the development, culture, and slow, ongoing destruction of a salty, inland sea
that accidentally formed in southern California in the first part of the 20th century. — Maggie
After living in L.A. for a year without owning a car — an experiment brought on by a lazy reaction to his car battery dying — Paleofuture's Matt Novak has written a fascinating piece about the history of Los Angeles transportation
. It's a history that includes doomed monorails, oil derricks at Venice Beach, and a cameo by Roger Rabbit. — Maggie
When bombs exploded at the Boston Marathon on Monday, my Facebook feed was immediately filled with urgent messages. I watched as my friends and family implored their friends and family in Boston to check in, and lamented the fact that nobody could seem to get a solid cell phone connection.
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Top contenders this year
: Louisville and Fremont, Nebraska. Time to start filling out those brackets, water fans! — Maggie
Known affectionately as Bertha, this tunnel boring machine has the widest diameter of any boring machine ever built; 57.5 feet. It's being used to dig a highway tunnel under downtown Seattle and it just arrived there today after being shipped from Japan.
I feel this warrants your attention for two reasons:
1) If you live near Seattle, you can actually go get a look at this massive beast before it starts chewing its way through the city. If you like looking at giant machines (or know someone who does) now's your chance. She's coming into the Port of Seattle, Terminal 46, as you read this and there will be ample opportunities to get a look as the pieces are assembled and moved into the nearby launch pit. The Washington State Department of Transportation has suggestions on places to go to get a good view.
2) If, for some reason, you were looking for a new way to lose massive amounts of time on YouTube, Bertha (and boring machines, in general) can help with that. Here's a cutaway animation explaining how boring machines work. Here's a video of Big Becky, another boring machine, breaking through to the other side of a tunnel at Niagara Falls, Canada. (In fact, boring machine breakthrough videos are, in and of themselves, a mesmerizing genre.) And in this video, you can watch the massively long line of support equipment go by in the wake of a boring machine.
Like the people cheering at about :25 into this video, I'm a sucker for dramatic explosions. This one comes from Texas, where the transportation department blew up an old bridge in the city of Marble Falls on March 17th. Also, apparently, it's warm enough in Texas that multiple gentlemen could watch a bridge explode from the comfort of their jet skis.
It’s normal for backup generators to fail. If we want a more reliable system, we’ll have to change the way the grid works.
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Photo: Michael Tapp
Salt water is still winning. Unfortunately.
Remember back during the Fukushima crisis, when you heard a lot of talk about why the people trying to save the plant didn't want to use sea water to cool the reactors? There were a number of reasons for that (check out this interview Scientific American's Larry Greeenemeier did with a nuclear engineer), but one factor was the fact that salt water corrodes the heck out of metal. Pump it into a metal reactor unit and that unit won't be usable again.
Now, the corrosive power of salt water is in the news again — and this time it's ripping through New York City's underground network of subways and utility infrastructure. I like the short piece that Gizmodo's Patrick DiJusto put together, explaining why salt water in your subway is even worse than plain, old regular water:
When two different types of metal (or metal with two different components) are placed in water, they become a battery: the metal that is more reactive corrodes first, losing electrons and forming positive ions, which then go into water, while the less reactive metal becomes a cathode, absorbing those ions. This process happens much more vigorously when the water is electrically conductive, and salt water contains enough sodium and chloride ions to be 40 times more conductive than fresh water. (The chloride ion also easily penetrates the surface films of most metals, speeding corrosion even further.) Other dissolved metals in sea water, like magnesium or potassium, can cause spots of concentrated local corrosion.
Read the full piece at Gizmodo
Via Tom Levenson
Image: Hurricane Sandy Subway Shutdown New York, a Creative Commons Attribution Non-Commercial (2.0) image from 59949757@N06's photostream