Category: Life

  • The Technology Optimist

    I suppose I could rightfully be accused of thinking too often that I can solve a problem around my house with the application of just a little more technology. Guilty as charged. But for some problems, technology is the best answer, or the only rational answer.

    Nicholas Negroponte is also a “TO.” I love the vision of the One Laptop per Child organization he helped to found, to “empower the world’s poorest children through education” and to provide that education, in part, by providing

    each child with a rugged, low-cost, low-power, connected laptop. To this end, we have designed hardware, content and software for collaborative, joyful, and self-empowered learning. With access to this type of tool, children are engaged in their own education, and learn, share, and create together. They become connected to each other, to the world and to a brighter future.

    I bought two of these XO laptops, for my two older children, when the devices first came out. The organization had a “Buy One, Get One” campaign at that time. I would have called it a “Buy Two, Get One” campaign, though, because you paid for two devices and only received one. The other one went to a child somewhere the organization was deploying them, generally in conjunction with federal governments. Each “pair” of laptops cost $400 at the time. They were really nifty devices, so well thought out for their purpose like no commercial product could be. They were designed to be serviceable and rugged. The screen was an amazing piece of technology developed just for the XO — it was a color display, but had a monochrome mode that was enabled by turning the backlight all the way down. And in the monochrome mode, the screen was completely readable in the bright sun. This was important to them, because in rural African villages, which were one of their target “markets” that’s where school is held!

    The devices were also designed to work together to provide a “mesh” network, so that if there was internet access in a village, the laptops themselves could extend the network outward to homes. They also came up with innovative chargers, and other adjunct bits of support technology. Later on, I bought a third one from a friend who had bought a couple, but wasn’t using one.

    In the end, my kids treated the devices more as toys than anything else, at least in part because they had easy access to computers at home that were much more powerful. And I happily donated the three back to the foundation. They continue to work on innovative hardware and software to help spread knowledge and educate children.

    So today my Twitter Feed had a link to an IndieGoGo campaign that sounded intriguing and very “TO” — the Lantern. This is a nifty, pocket(ish) sized device that receives all kinds of content over a satellite link, and can provide a wifi hotspot that any wifi enabled device can connect to in order to consume the content. It’s not an “active” connection to the internet, but rather acts like a web server with static content. They plan to provide the content of wikipedia, among many other things, including near real time news and weather info. This can help in areas where other infrastructure has been affected, or where governments restrict access to the internet. And as it’s a broadcast technology, nobody can easily track who’s receiving the data. They compare the drive to get these devices out to people like Andrew Carnegie’s building of public libraries, and it’s not hard to see why.

  • Going out of Business!

    As a kid in high school, I loved reading through the catalogs that came in the mail. Biking catalogs were a favorite. Bike Nashbar and Performance Bicycle I remember. Campmor was another with all kinds of cool outdoorsy gear. But one of the most interesting that came in our mailbox was the Hidalgo Sunglasses catalog. It was printed on cheap newsprint, in black and white, but came loaded with interesting information about sunglasses, and prescription glasses as well. It had actual size pictures of the frames, so you could cut them out and try them on for size. Of course, back then I couldn’t afford anything in the catalog, but I learned a lot by reading it.

    Since the dawn of the web, I’ve kept looking for Hidalgo on the web, but they were very late to the game. They did finally arrive, however, in more of a “Web 1.0” style than the “2.0” that was gaining traction. It still looks rather dated, but is full of good information and you can still actually download the entire old fashioned catalog as a PDF. According to the Wayback Machine, they first had a web site around 2001, but it was just a handful of static pages until 2010, when you could finally order from it!

    I just visited again today, mostly to find the right URL to pass along to a friend, and discovered that Hidalgo is going out of business. Now I have to decide whether to buy a pair of sunglasses from them before they go out of business…

  • Doing our share

    This past week was a pretty big one at the Stewart household. Two “environmental” projects came to fruition this past week. First, and most important, is that our photovoltaic array went live, and we are now generating some of our own electricity. We have 28 250 Watt panels distributed among our main roof, dormers, and the garage roof, for a maximum hypothetical power rating of 7 KW. However, the DC-AC conversion isn’t 100% efficient, and by design the sun doesn’t shine on them all equally, so we won’t expect to see that number ever come up. But it is fun to see numbers, and to that end, here is a web site that is publicly accessible that shows some statistics about our power production: http://www.solrenview.com/SolrenView/mainFr.php?siteId=1910. Today we produced 35.1 kWh, and had a peak power output of 5.7 kW. Payback of our initial investment in the system is expected to take 5-6 years.

    On another front, we also purchased a new vehicle today. Well, more accurately, a used vehicle. Partly because we understand that the best value to be had in cars is in ones that are 1-2 years old, but also because a friend reminded us that buying a new car implies the assumption of the environmental cost of producing a new car. I was enamored of hybrids for a time, but the same friend educated us about the environmental cost of sourcing all the rare earth materials for the batteries. So the conclusion we came to was to find an efficient gasoline powered car. But we couldn’t find one. Perhaps my standards are “too high” but I remember cars from back in the 80’s that would achieve 50 mpg. Many friends have heard me wonder aloud whether this technology was somehow lost.

    It seems that there are a couple of big factors at play here. First, people expect their cars to be more powerful that those “econo-boxes” of the time. We expect to be able to get up to highway speed from a standstill in a matter of seconds. Another factor is that people have come to demand/expect many more accoutrements in their vehicles, like power windows, power locks, GPS Navigation, big, honkin’ sound systems with 12 speakers, power seats, etc. Do they still make cars without air conditioning?

    I also remember reading an article a while back in an online car magazine (TopGear) about a project where a team was challenged to put together a car for less than $7000 that would get 70 mpg and be able to get from 0-60 in 7 seconds. I think I’m remembering all that correctly, it was a long time ago, and the article was taken offline quite a while ago, unfortunately. All that remains are posts that link to it, and archive.org failed to have a copy, unfortunately. Here’s one post that at least references the series, called “Project Sipster.” They took an old diesel VW Rabbit that they got for next to nothing, and put a lot of work into it, including a new engine, and new suspension. I don’t think the $7000 included the weeks of labor. Watch the video, though, and tell me you wouldn’t want to own this car:

    In spite of my 13 year old truck running OK, and having no major problems, we didn’t think it would necessarily last through the next 10 years which will include paying for three college educations. And so, inspired somewhat by the above, we bought a 2011 VW Jetta Sportswagen TDI with only 18,000 miles on it. It’s fun to drive, and gets an EPA estimated 30/42, but you hear plenty of reports of people getting better. Really depends on how you drive it. Unfortunately, it is peppy, fun to drive, and encourages acceleration. Hopefully it will last through the kids’ college years. Isn’t it cute?

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  • Happy New Years!

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    For Christmas, I received an awesome kit clock that I spent a good part of the following day putting together. We have a tradition where we spend New Year’s Eve with another family, and as one of the neat things about this clock is that the software it runs (I know, it’s a weird concept…) can be modified. So I spent parts of the next couple of days modifying the original software to include a countdown to New Year’s mode, which is what you see in the picture.

  • Dusty Turns 100K

    My truck is no longer young.

    It’s called parallax error. I definitely wasn’t going more than 60… 😉

  • Unfortunately, this CharlieCard isn’t valid for usage with in the system

    The MBTA has for years now had available a “stored value” type of card for subway, buses, commuter rail, etc. All very neat. You can go to a vending machine at subway stations and refill the card with cash or use a debit or credit card. It’s even possible to refill them on the bus, but I always get flustered trying to do it, and the drivers are often impatient about it. More recently, they’ve added a web-based system for refilling your card, which sounds pretty handy. But I’ve tried many times to enroll my ancient CharlieCard, only to get an error back. I assume it was because it was too old, and pre-dated when the started allowing access via the web.

    Yesterday, I was on the bus and ran out of money on the card, so I went to refill it. I was asking the bus driver “What do I do next?” but he wasn’t really answering me. I failed to follow the correct sequence, and ended up with a paper ticket with $5 on it, minus the cost of the bus fare. Argh! When we got to Harvard, I picked up a *new* CharlieCard, so I’d be able to enroll it in their system. When we got home, I did try to enroll the card only to get the same error message back. Sheesh!

    I emailed the support email address listed on the site, holding out little hope that I’d actually receive an intelligent answer. But less than 10 minutes later, I did get a response: “Unfortunately you would have to grab another card at the station. This error is due to a glitch in the MBTA’s system, and there’s no way to tell in advance which cards are compatible with the online system and which ones are not. I apologize for the inconvenience. Thank You”

    So, kudos to the MTBA (or their partner) for providing an “answer” so quickly! Generally, at best I’d expect a response about a day later, telling me that the company had received my inquiry, and telling me how important I am to them, etc., etc. And then I may or may not hear back in a reasonable timeframe. However, the MBTA (and/or their partner) get a failing grade for the content of the response.

    Guess I will be picking up a stack of cards next time…

  • Hell Toupee

    There were still patches of snow on the ground from the weekend’s Ocsnowber Nor’easter, but it was a nice night for trick-or-treating, at about 45 degrees. I had our light on from 6-9 but still only served 10 kids, and 6 of them were in one group! I do my best to be a welcoming house: porch light on, jack-o-lantern out, and I always play some “appropriate” music, but very few kids come through our neighborhood for some reason. My “All Hallows Eve” playlist includes:

    Bad Moon Rising — CCR
    Bela Lugosi’s Dead — Bauhaus
    Black Magic Woman — Santana
    Bright Yellow Gun — Throwing Muses
    Burnin’ For You — Blue Oyster Cult
    Culling of the Fold — Decemberists
    Don’t Fear the Reaper — Blue Oyster Cult
    Everyday is Halloween — Ministry
    Gallows Pole — Led Zeppelin
    Hell — Squirrel Nut Zippers
    Highway to Hell — AC/DC
    Institutionalized — Suicidal Tendencies
    The Mariner’s Revenge Song — Decemberists
    Monster Mash — Bobby Pickett
    Monsters in the Bathroom — Bill Harley
    One Halloween Night — SteveSongs
    People Who Died — Jim Carroll
    Prince Nez — Squirrel Nut Zippers
    Psycho Killer — Talking Heads
    Run Like Hell — Pink Floyd
    Shankill Butchers — Decemberists
    Werewolf — SteveSongs
    Werewolves of London — Warren Zevon
    Zombie — Cranberries

    In the afterlife
    You could be headed for the serious strife
    Now you make the scene all day
    But tomorrow there’ll be Hell to pay

    –Squirrel Nut Zippers, Hell

  • My Bike

    Having largely completed Clara’s bike, I moved on to my bike. This is the bike I bought in High School, early 1980’s, from the bike shop that was at the edge of our neighborhood (The Bike Rack). It cost me about $300 at the time. I rode it all over during my High School year, or at least as far as I ranged back then. I wasn’t allowed to have a driver’s license until I was 18, so there wasn’t much driving for me in High School, though of course I did get rides from friends. Anyway, back to the bike. It got a lot of use in those years, and I brought it up to college with me, though with some trepidation given the reputation Cambridge had for bike theft. I didn’t use it a lot in those years, but when I needed to get off campus on my own, or even to the other end of campus, it was handy. One of my roommates borrowed it once, and the back wheel got stolen. He graciously replaced it, even before bringing the bike back, but that made me even more anxious about riding it. Or more precisely, parking it. I had a Citadel “u-lock” and the idea was you’d remove the front wheel and lock it up along with the back wheel and the frame to something sturdy. But what a pain, and you end up scratching up the fork ends.

    After college, the bike saw even less use. And after getting married (or maybe it was just before), Susan and I bought snazzy new Specialized mountain bikes, which meant that the old bike really languished after that, sitting in basements, attics, and other random storage areas. I had a $10 price tag on it at a yard sale once, as it had gotten a little rusty in some parts, and someone offered me $5 for it. I hate yard sales. As if $10 wasn’t enough of a bargain. I couldn’t let it go for that, so it sat in the basement some more, but its presence there began to bug me. So a few years ago, I stripped it of all its parts, and began to strip the paint from the frame. It sat for another year or two, and last summer I got “inspired” to turn it into a single speed/fixed gear bike, and did a lot of research. The trickiest bit was getting a special rear hub that would allow some front-back adjustment of the cog (to tension the chain properly) even though the rear dropout was essentially vertical. I eventually bought a set of wheels on eBay where the rear wheel had this special White Industries Eccentric ENO hub. The pair of wheels, all built up, cost about a third less than the hub alone would have, brand new. Seemed like a good deal. But then it sat some more. Oh, and the new wheels are size 700c, while the old ones were 27″ so the conversion necessitates a longer reach brake.

    This summer, we bought Clara an old road bike that she and I fixed up for her. Part of that job was having the frame painted (or more accurately, “powder coated”). I thought I could perhaps get a discount getting more than one frame done, so I got both frames ready. That didn’t turn out to be the case, and it turned out to be quite a bit more expensive than I’d hoped, but I’m very pleased with the end result. After essentially finishing her bike, I started on mine. I bought about half the parts via eBay, and others through a couple of online bike shops, and even some parts/tools from local shops. At this point, there remain but three original parts: the frame, the fork, and the seatpost binder bolt. After that, there are a few things I bought used: the wheels, the seatpost, and the saddle. Beyond that, everything on the bike is new. Which means the project cost more than it was worth, but it has been a fun and interesting project, and I learned a lot doing it. Plus, I still have my old bike and all the sentimental value that carries.

    I rode it for the first time last Friday. I had it set up in fixed gear mode, but felt a little freaked out in that mode, so I switched it to single speed (by simply flipping the rear wheel around!) until I could get comfortable with the bike as a whole. Hope to make the switch and get some practice riding “fixie” soon. I expect it will take some time to get used to it.

    Here’s a listing of most of the components:

    Frame: 1981 Panasonic DX2000
    Fork: original Tange
    Rims: Mavic Open Sport
    Rear Hub: White Industries Eccentric ENO
    Front Hub: some Nashbar sealed bearing hub
    Headset: Velo Orange Alloy Headset, in JIS size (not many choices in that size!)
    Stem: Nitto Pearl 120mm
    Handlebar: no-name Bullhorn style
    Bar Tape: Arundel cork
    Bottom Bracket: Tange sealed cartridge
    Crankset: Sugino XD
    Pedals: MKS Sylvan Prime Track Pedals
    Toe Clips: MKS (NJS Stamped :-))
    Brake: Tektro R536 Caliper
    Brake Level: Tektro RX 4.1
    Cross Lever: Cane Creek
    Seatpost: SR Laprade
    Saddle: Selle San Marco Island Ponza

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  • Clara’s Bike

    Ever since she briefly rode a friend’s road bike on vacation last year, Clara has been wanting a road bike of her own. There are kid-sized road bikes available, but they run $700 and up! So I scoured Craigslist, and eventually came upon a 1977 (I think) Fuji Junior, which is a kid-sized road bike, built on 24″ wheels. Nice. Picked it up for $60. Seemed like it had been garaged for a long time — grease was very dry, but the bike and its parts didn’t seem beat-up or anything. So, Clara and I took the bike completely apart with the intention of getting the frame painted nicely and generally overhauling all the moving parts.

    Brought the frame in to the powder coater just before we left for two weeks of vacation, and picked it up shortly after we returned. It looked awesome! It cost more than I expected or hoped, but it was beautiful. Clara picked out a nice teal, which doesn’t seem to be rendered quite accurately in the photos below. We’ve been working together over the past couple of weeks to clean and re-grease all the components and re-install them on the frame. It’s come along very nicely.

    The biggest headache, somewhat surprisingly, has been the wheels. The new standard in wheel measurement is from the E.T.R.T.O. and is now an ISO standard. Wheels labelled 24″ may be one of (at least) 4 different sizes: 507, 520, 540, or 547. These numbers represent the “bead seat diameter” in millimeters. Turns out, the version of 24″ on this bike is the 547, which is by far the least common. It seems to also be known as “S-5” a proprietary Schwinn size. After much searching, I came upon one tire that would fit, and ordered a pair plus tubes, even though they are bigger (wider) than I’d like. They are more like “comfort” tires than “road” tires. They are listed as 1 3/8″ where the old, cracked ones on the bike were labelled 1 1/8″.

    On the plus side, the tires do fit on the rim properly. On the down side, they are so much bigger, that the rear tire rubs against the brake hardware. I’m currently searching for a better option. Over the long term, I’d hope to upgrade from these heavy, chromed steel rims. Not only are they heavy, but chrome rims are notorious for bad braking performance. Seems that the best option for wheels that offer a better selection of road tires are the 520mm variety. The rear wheel wouldn’t be much trouble — everything is fairly standard on the back, most importantly the hub spacing is 126mm, for which hubs are still available without *too* much trouble. On the front, however, the hub spacing is an odd size — 91mm, which shows up in references as a “low end” hub. No hope of replacement there, which means to replace the front wheel, I’d have to re-lace the current front hub to a new rim. But even putting together all these parts leaves the issue of whether the new wheels would be too small — brake reach is the key issue here, because I’d be losing 13.5mm in radius, thus requiring brakes with 13.5mm more reach, which I suspect will also be tough to find.

    So for now, the bike is going back together with all the original hardware, with wear-and-tear items replaced: tires, tubes, brake shoes, cables, housing, handlebar tape, and ball bearings. Probably didn’t have to replace the bearings, but wanted to do a good/complete job. But it’s honestly been a bit hard putting all these old (& often heavy) parts back onto this new-looking frame. I hope, over time, to replace a lot of the components with new, improved, lighter ones. But almost certainly by then, I’ll have spent as much as (if not more than) a new bike would have cost, and Clara will have outgrown it. But perhaps it can be sold at a premium on Craigslist as a small but nice bike for a small woman, or a generous parent…

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  • More Pony Tails than an NFL Game

    We’re here at Dilboy Stadium in Somerville to watch the Boston Militia take revenge against the DC Divas. The Divas beat us in our opening game, and gave us our only defeat on the season. Tonight’s game is the last of the season. It’s clear that these are the two most competitive teams in the league. The Divas haven’t lost, and in fact only two teams (the Militia being one) have scored on them at all. And our results are pretty similar. Our most recent win was something like 70-0.

    Anyway, good family fun at a reasonable price, and walkable (< 2 miles) from our house! 20110611-062533.jpg