Monthly Archives: April 2012

I was futzing with the bushings on my longboards last night, and made an observation that should probably be visible on the Internets: Orangatang Nipples are slightly too tall for the stock 2.75″ kingpin in Churchill RKPs. One could swap … Continue reading

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A Year of Google Reader

A year ago today I switched from visiting websites to consuming through Google Reader as my primary means of reading web content. Like most such time-saving conveniences, rather than letting me read the same amount of Internet chatter faster, it just means I consume more of it. A lot more of it.

The mediocre “Trends” metrics page built into reader tells me I have read 119,568 Items this year, which will grow by something on the order of 2,000 over the course of the day.
To be fair, that statistic is rather misleading for several reasons. First, I tend to skim feeds by locking my hand over j (next item), k (previous item), space (next object), and middle click (open in new tab, there is an upper midddle mouse button for the Trackpoint on Touchpads), so it shows my reading everything even if it flickers by as I parse the headline. Second, I’ve added some ” chatty” feeds in the last couple months, particularly Y-Combinator’s HackerNews feed, which is a ~105 item/day noise machine, full of stereotypical startup douches, presented headline-only. I tolerate HN because it brings me some truly excellent oddities that I wouldn’t see otherwise, and does so on a regular basis. For scale, reader tells me I’ve clicked 406/3000 things from HN in the past month, and only perhaps half of them were inflammatory headlines that were closed as soon as I realized what they were. Which is still more than the next most clicked feed.

The more meaningful metric is that, according to the terrible “Export starred items, then do a wc on the json file, and subtract one” method, I have starred 1188 items in the past year. Also working around the Trends page sucking by making note of the value in the 30-day sliding window from time to time, I seem to actually click into between 750 and 1000 items a month, of which I fully read probably 2/3.

As for Reader itself, I’m not fond of the current visual (re)design, and Plus is wildly inferior to the pre-Plus sharing mechanism, but in terms of features and convenience, it is still the best feed handler I’ve seen. The closest I can find is TinyTinyRSS, which is a self-hosted solution with an Android app. It is apparently something of a resource hog for cheap shared hosting, and currently doesn’t have a good “share with note” mechanism, but I’m keeping a close eye on it because it is very close to a drop-in replacement, the idea of self-hosted appeals to me, and Google dependency makes me nervous. If someone hacks together a clean flow for sharing with note into something a reasonable blog type CMS can syndicate, or Google gets any less functional/creepier, I could easily see myself making the switch.

So I have a slight reader problem, but it is an awful lot of fun, and I think it makes me a more interesting person. For the curious, my exported list of feeds is here.

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Skateboarding Companies are the Best

One more longboarding post before I return to my usual content. We’re all used to being regularly mistreated by vendors, and I don’t want to sound like an SEO bot, but these guys deserve recognition for being awesome.

Free Churchill Deck
When I ordered my Jasmine from Churchill Mfg., I sent in my reddit user name for their “free skate tool with order for redditors” promotion a couple hours after I ordered. It didn’t show up in the order, and I didn’t worry about it, because worrying about free pack-ins is silly. Then I got an email from Troy Churchill apologizing for not sending me free stuff because they shipped my order before they saw I had sent in for the promotion.

I replied that it wasn’t a problem and threw in a link to my post about setting up the board. They 1. Looked at it, 2. Politely offered a slight correction and, 3. Offered me a free deck under the “give us a shout-out in a video of decorating your Churchill deck and get one free” promotion they are running, even though it wasn’t a video.
So now I have a free Marina (pintail) coming that I’m passing to a friend who rode my boards and decided she liked it, to spread the stoke.

Khiro Makes it Right
I orderd a Khiro Angle Wedge Riser Rail Kit from Daddies to play with the ride of my decks, and this happened:
Riser Problem
(There was a slight packing error among the 16 similar looking plastic bits in the set, so I had three 7° risers and only one 10°.)
I emailed a description of the problem the service contact at Daddies’, asking how they wanted to handle it… and in less than 12 hours, I was CC-ed on an email from a Daddies employee to Khiro, had an apologetic email from Khiro promising me that a replacment 10° riser was going in the mail with “some goodies,” and a voicemail from Khiro Bob apologizing for the problem. A few days later this showed up:
Riser Solved

Why can’t all the compaines I interact with be this full of win?

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Churchill Jasmine

Complete
I’ve been fairly in to Longboarding this spring, and decided to pick up another board, set up to contrast with my current big surfy cruise/carve deck. I wanted something lower, with a bit of flex, easier to break out wheels, and a less popsicle-stick shape. The intention is for variety, for easier to pushing, and to improve my technical riding. It will also be nice to have a deck to lend out to get friends hooked.
Details of the board are attached to the images of the gallery after the fold. Fair warning: they are rather high resolution. I’m sure my advisor would complain about the superimposed images with ill-matched white balance and squirrely focus, but I’m shooting with my phone and making automated fixes only in the gimp, so they will do. The WordPress gallery software also seems to be a bit confused by the non-4:3 shapes.
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Churchill Mfg. 180mm RKP Trucks

I’m in the process of putting together a second longboard – there will be more posts about that in the next couple days, but I wanted to put up some detailed pictures of the Churchill Mfg. 180mm 50° Reverse Kingpin trucks, since there were none to be had when I went looking. The ineterwebs are all abuzz about how inexpensive and decent they are, but I couldn’t find any side-by-side comparisons with an established brand when shopping. To that end, there are some comparison shots with classic Paris 180mm 50° Reverse Kingpin trucks in the gallery. I’ll also note that they look an awful lot like Stealth Trucks without the raised sections on the triangle portion of the hanger.

Some notes from the pictures:

  • They ship with speed rings, which is both a nice touch and possibly important because the end of the hanger at the axle isn’t faced.
  • In fact, there is no sign of any post-casting machining whatsoever. The finish is pretty good for a casting, though – they may be sandblasted or tumbled or somesuch.
  • The Churchills are about 1/8″ higher than Paris’, but that may just be a difference of bushings. They look the same height in the pictures because the Paris’ are mounted on 1/8″ shock pads. The Churchills have the stock bushings in, and the Paris’ have 81a Venom standard barrels board-side and 85a Khiro barrels street-side (which should probably be the other way around).
  • The bushings they ship with are cherry red translucent 92a double-cones of unknown origin. They kind of remind me of the ones Paris’ come with, which likely means they will be replaced soon, but I’ll give them a ride before passing judgement.
  • The bushing seats are shallower but tighter than the Paris’, I’m not sure how that will translate when riding.
  • The kingpin is an absolutely standard carriage bolt, 3/8″ – 24tpi, 1/2″ hex head, 1″ threaded length, 2.75″ total length. I suspect it could be replaced from stock at a home improvement store.

Conclusion: These trucks are $20+S&H per pair, and appear to be functionally equivalent to the classic ~$50 sets from Paris and Randall. I haven’t taken them out riding yet, but inspection says they are extremely comparable. I’ll have a more informed opinion after some riding, and only time will tell if the axle/kingpin steel is as good.
Edited to add disassembled picture and note from disassembly.

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Exploit Exercises is magnificent: nice pre-packed virtual machines with a set of known vulnerabilities to learn various classes of security problem from. Fuzzing you own machines is never any fun, because the likelyhood of finding anything good is infinitesimal, and … Continue reading

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DARPA and the Makers

So there has been a spat going on, where Mitch Altman is parting ways* with other important folks in the Maker movement over concerns about their accepting DARPA money for STEM education. The organization accepting the grant is largely being represented in the arguments by Tim O’Reilly.

Altman and O’Reilly are some of the more substantial organizers of hacker/maker types, and I generally have a great deal of respect for their opinions and activities… but I don’t get what the DARPA fearmongering is about. As far as I can tell, the only problem is that from 1972-1993, and again from 1996 on, the U.S. Government’s technology investment agnecy has had “Defense” prepended to its name out of political necessity. I suppose part of my befuddlement is that the ethics of such things have long been carefully thought through in academia, so seeing the non-academic maker types fret about it is novel.

First off, let’s talk about DARPA. Go read the mission statement. They are tied to the DoD, but their job is to develop technology. Basically, it’s in the United States’ strategic interests to make sure domestic technological advancement keeps pace with or exceeds that of the rest of the world. Strategic does not mean military, I would like to think most of learned this, if not in school, at least from playing empire-building games. The MENTOR program this grant in in particular comes from is to fund education that will nurture future engineers and scientists, to support the goal of advancing science and technology. This is fundamentally the same organization that funded most of the major advances in computing (See Project MAC, MULTICS, and the Internet), even though they grew a “D” in their name, and were founded out of fear of the Soviet’s technological capacity. As it turns out fear of annihilation is a great way to get reluctant politicians to think about the future. DARPA isn’t the armed forces, they’re the US government’s way of investing in technology.

Next, let’s take a little dip into the philosophy of technology. Once some useful bit of technological progress has been made, it won’t be long until EVERYONE has access to it, such is the nature of history and technology. More cynically, the U.S. Military-Industrial complex will do whatever they want with any technology they dredge up, whether or not they paid for its development. Arguments about the intention of technology are kind of ridiculous, and yes, I’m aware that that makes my Utilitarian ethical precepts show. To use one of my favorite examples instead of going into a nebulous argument, the same cheap sensor and storage technology that makes mass surveillance possible also allows us all carry a recording device with which we can watch the watchers and disseminate our findings (so long as our rights to record police stay intact). The difference between menacing and empowering technology is entirely in its application, and the creators, much less the creators’ financial backers, generally don’t get a whole lot of say in the matter.

Finally, let’s talk about practical matters about politics and money in the United States. First, if you’re involved in the technology industry, you are already complicit. Like so many things in the modern world, the technology industry is, to a distressing degree, driven by the military industrial complex. We talk about the need for funding NASA as a matter of driving the leading edge of science and engineering so that technologies trickle down into our every day lives. The same applies to defense; World War 2 and the Cold War were arguably the primary technological drivers of the 20th century. I tend to think of DARPA, like the DoD operated national labs, as “The conservatives won’t let us fund science, so we call it defense and do it anyway.” Yes, it is reprehensible that “Education” and “Science” will get cut, but “Defense” won’t. Yes, some immediate military technology comes out of DARPA programs, but whether or not we are in a decade with the “D” prepended, it has always been about advancing technology. The principle here is that the U.S. Government is offering up money to advance STEM education from a fund that looks enough like defense to remain funded, and it is even better that its use is being directed by people who’s ideas about STEM education are agreeable, to O’Reilly, to Altman, and to people like me.

I’ll even admit there is a little bit of self-justification in here, but we’re all being a little ridiculous: Mitch made his announcement, most likely from some kind of Linux box (Which is a developed clone of a cut-down version of an old ARPA project), on the Internet (which is based entirely on the fruit of another ARPA project).

So, my opinion? Let’s celebrate that a little piece of the DoD budget is going to paying makers to teach future makers instead of fighting wars of aggression on flimsy pretenses in random oil-rich nations on the other side of the world. It surely isn’t perfect, but it is a step in the right direction.

* A bit of my own ideological weirdness: most of the argument took place on Facebook, which I think is sort of an embarrassment to our society, so the link to the original source is indirected through Slashdot.

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