TRVTH

Daily observations of TRVTH in the real world.

My Photo
Name: Don Appleman
Location: Zembla

Thursday, April 15, 2010

50 Years Of Public Computing

I had a good time this morning at 50 Years of Public Computing at the University of Illinois where I attended the session dedicated to the PLATO educational computer system.

http://50years.lis.illinois.edu/bibliography/plato.html

The panelists were Don Bitzer, Peter Braunfeld, and Lippold Haken. Half of the people in the audience could easily have served on the panel as well, and I had the pleasure of hearing many of them reminisce about those good old days. I saw Jim Kraatz and Celia (Davis) Kraatz, Rick Hazlewood, Paul Tenczar and Darlene, Jim Knoke, Jack Stifle, Rick Blomme, John Gilpin, Aaron Woolfson, Helen Kuznetsov, Mike Walker and CK Gunsalus, and many others (my apologies to those I've left out).

Here's a link to the dozen or so pics that I shot today. Sadly, I forgot to bring my camera, so these were taken with me Palm Pre -- no zoom, and today the background (thin drapes over a window) was brighter than the foreground ...

http://www.facebook.com/album.php?aid=2065040&id=1191873703&l=c35eb843ef

It was a lot of fun, and it makes me that much more interested in the PLATO@50 Conference coming up on 2-3 June 2010 in Mountain View, CA at the Computer History Museum. The conference is dedicated entirely to PLATO, with the theme "Seeing the future through the past". Here's a link to the Museum's page about the conference --

http://www.computerhistory.org/events/listing/plato-at-50/

Presenters include:
Ray Ozzie (Microsoft's chief software architect)
Don Bitzer (initiator of the PLATO project at the UI)
David Frankel
Andrew Shapira
Dave Woolley
... and many others (as listed at the conference URL, above)

In addition to discussing the hardware and software of the PLATO system, there will also be a focus on the culture of the development team, and the online community that sprang up around the PLATO system.

Besides the conference itself, I'm interested in visiting with the people involved, many of whom I worked with (or went to school with) in times past. I started using the PLATO system while in high school, and was a student programmer on the PLATO System Staff at the UI in my teenage years in the late 70s. I was a software engineer at NovaNET (which PLATO evolved into, locally) for over 8 years, ending in 2002. I also worked on the PLATO system as a computer operator at the UI, and as a programmer for the Department of Defense at Chanute AFB in the early 80s. In all, I worked on PLATO and its descendant systems developing educational software and its related infrastructure over a 25-year period.

At the UI's CERL (Computer-based Education Research Lab) much of the work was accomplished by people who pursued their own interests, and then made that work relevant to the community at large. It was a pleasure to work in that culture.

I plan to go to the conference if I can manage it.

Labels: , , , , , , ,

Saturday, March 21, 2009

Dawes SST-AL Pictorial Review

Click any image to view it full size.

On Friday the thirteenth of February I received my tax refund. At 11am that morning I placed my order for the Dawes SST-AL (52cm) from bikdesdirect for $359.99 USD delivered. I was looking for a way to rekindle my interest in cycling, which had fallen off some in the past couple of years. I figured riding fixed could do the trick. Since it had been 10 years since I last bought a bicycle (my road bike), I was pretty excited about getting another bike. At 11:40 I received a UPS tracking number. Bonus points for the quick shipping!

My budget for the bike ran about $500, so right after ordering the Dawes I went to ebay and picked up a Cateye Strada wireless cycle computer, and a cheap pair of Wellgo 823 clipless pedals. The bike comes with clips and straps, but since I already ride a pair of Wellgos on my road bike I decided to get the same for this bike so I could be sure I could use my only pair of cycling shoes with both bikes.

Dawes in boxI had it shipped to my office. I ordered it the Friday of Presidents Day weekend, so with their 5-day shipping estimate I figured it would be at best Thursday or Friday of the following week when the bike arrived. I was stoked when it arrived at my office on Tuesday(!) morning at 9:30. That's a little under 4 days for delivery, across a holiday weekend. The bike got to me so quickly that I had to wait a few more days to get my clipless pedals and cycle computer. The box was in pretty good shape, so I wasn't worried about the condition of the contents.

Open boxThe thing felt pretty light. Opening the box was a pretty good wrestling match; once it was open, I could see everything tucked tightly into place.

Seatpost and saddleThe seatpost is a Kalloy Micro Adjust 27.2x300mm in black, mounted with a nondescript black saddle. Since I already had a Fizik Pave' saddle on hand, I've been using it in place of the stock saddle while riding.

Unloaded boxThe wheels looked nice, and the packing job was thorough, with cardboard, foam, and clear plastic taped or zip tied in place to protect all the shiny aluminum of the frame and the black components. I admit that when I placed the order I was concerned about the level of care that would be used in packing. Everything came through just fine. There was the seatpost and saddle, a parts box, and the mass of the frame and wheels. The rear was already installed, while the front was zipped in place. Interestingly, the front also had the left crank slid in place between the spokes. It made for a solidly packed mass with little room to move around. That's good, since there's no one to inspect the bikes between the factory and the customer.

Parts box contentsThe parts box had the pedals, the 17-tooth freewheel (the 18-tooth fixed cog was installed), and a rear brake and brake lever with cable and housing. Also included was a laughable "owners manual" with a few pages of (very) generic content.

Rear wheel, bottom bracket, and crankThe welds are not especially pretty, but that's something I was willing to accept for the deeply discounted price at bikesdirect. The axles were covered to prevent them punching through the sides of the box. I took a good look at the rims and other components before beginning to assemble the bike.

Cane Creek HeadsetThe headset is a Cane Creek -- I was glad of that, though I'm sure it's low-end Cane Creek. The whole head tube was loose on arrival, but there was no apparent harm in that. Contrary to what you may have heard on the web, the Dawes stickers are all under the clear coat. The only sticker on top is that "Made in Taiwan" sticker on the head tube.

Side shot of head tubeHere's a shot of the welds where the top tube and seat tube meet up with the head tube. Keep in mind that this is a 52cm, so everything pretty much runs together here.

Handlebars installedWith the handlebars in place and the headset tightened down it was starting to look like a bicycle. Initially I left in the full complement of spacers. I've taken about half of them out while adjusting my fit. The handlebars are 44cm C-C, which is a full 6cm wider than the bars on my road bike, and likely too wide for anyone who buys a 52cm frame.

Ready for the first rideI bolted on the front wheel and installed the seatpost and the clips and straps, and voila, it's a track bike. There's no toe overlap at this frame size, and there's plenty of clearance in back for fenders, with braze-ons for racks and two water bottles. I didn't put on the rear brake right away, but of course this bike has cable guides on the frame, so I was sure I would install it soon. In this picture everything is still stock. At this point I was ready to go for my first ride.

The clips and straps took me back to my high school days. Everything on the bike was pretty tight. The only thing that slipped was the rear cog when I backpedaled to slow down. For the rest of the ride I stuck to the front brake for stopping. We're a little too close to winter here still, so the 30F temps and light drizzle meant the first ride was short.

Saddle and seat bagSince I didn't have any track-bike specific tools yet, I tightened the cog by standing on the pedals. I carefully used a hammer and nailset to tighten the lockring, which tightened about a quarter turn. The crank and all other parts were already all the way tightened down. Since I bought the bike mail order, I've been trying to be nice to my LBS by going there to buy a lockring tool and a chain whip, as well as a Topeak bag mounted under the saddle to carry my spare tube, 15mm wrench, and multitool.

Complete bike, with some upgradesI have a day job and the days are still short, so I can only ride on the weekends, but right now I have about 70 miles on the bike, including a couple of rides of 20 to 25 miles. This picture shows my bike as it looks now after a few modifications. The provided rear brake is installed, and a few new components have been swapped in. As I mentioned before, I already had a Fizik saddle I intended to use, and my clipless pedals and cycle computer arrived from the land of ebay. I knew the handlebars were silly wide, and after I road it a few times I realized that I missed the hand positions afforded by brake hoods. So I returned to ebay where I picked up a 40cm Nitto Noodle handlebar, some Tektro R200 aero brake levers, and Cinelli macro-splash cork tape. My LBS had the 38g Bontrager composite water bottle cage. Now the bike really felt like it was mine. I was amused, after I thought about it, to realize how closely the setup of the Dawes mirrored the setup of my regular road bike. So far I'm pretty happy, but I'm still making adjustments to the fit to find the most comfortable position.

Bikeforums.net logoMany thanks to the fixed gear folks over at bikeforums.net where I lurked for about 6 weeks prior to ordering the Dawes, and where I continue to find inspiration.

I need to put some more miles into this setup to be sure it's right, but I find it more comfortable than the stock parts. I'm a roadie by nature, and most of my rides are 20-40 miles on flat to rolling hills. My only shorter rides are tooling around town with my kids.

Riding and working on the bike has been an education in fixedness. On my road bike my cadence is generally 90+ ... on the fixed gear, particularly on hills or into the wind, I'm forced to generate a lot of force at lower cadences. It's a different kind of workout.

Track endsAs delivered, the rear wheel fits at the tight end of the track ends. There's some kind of black, protective plastic on the right chainstay.

StemThe stem is solid but uninspiring. It's 110mm; I may swap that out for a 90mm soon.

Closeup of the right aero brake leverAnd here's a closeup look at the Tektro R200 aero brake levers I switched to. They're heavier than the cross levers that came with, but I like riding on the hoods. Since I'm on a budget I wanted cheap, and I knew the Tektro levers would work with the stock Tektro brakes. A note for anyone else considering this upgrade -- I needed new brake cables and housing because the existing ones weren't long enough. The hoods mount far enough out on the bars to make both cables several centimeters too short. I did keep the stock rear brake cable and cut it down to use as the front brake cable so that I only had to purchase (again at the LBS) a new cable for the rear.

Complete bike, grain elevator in the backgroundI live in a town of 1800 people in the middle of Illinois corn and soybean fields. All of my riding is on blacktop chip and seal roads. I don't ride in the winter, so I'm just getting used to being back in the saddle. This makes it hard to compare the comfort of the Dawes vs. my road bike, which I still haven't ridden since early December.

Bike closeup from below frontThe 48x18 gearing is good while I'm learning to ride fixed, but I may knock that rear cog down to around 16 teeth to increase my top end. I haven't made up my mind yet whether that will cause me trouble in the open on a windy day. Give it a couple of months and the corn will be over my head on both sides of the road, and that will help some with the wind. Bikesdirect states that the crank length varies based on frame size; these cranks are 170mm. If a future edition of this bike comes with a carbon fork, that would be a nice enhancement over the current design. I hesitate to add an aftermarket carbon fork due to the cost.

Feel free to ask questions in the comments; I'll try to answer them. I'll also come back with an update that gives the full list of changed components with their costs.

Labels: , ,

Monday, August 11, 2008

Champaign Park District Mini Triathlon

Don Appleman running in the triathlonOn Saturday 08-02-08 I participated for the second time in the annual Champaign Park District mini-triathlon. I did OK, though I didn't win any prizes. It was a 400 meter swim, 6 mile bike ride, and 2 mile run. My time was 48:41.4, an improvement of 4:23 over my previous performance.

I finished 5th of 17 in my age group (men age 44-49), 56th of 142 among men of all ages, and 82nd of 305 among all men and women for the entire event. Of the 223 people I beat, 187 were younger. Of the 86 men I beat, 74 were younger.

I hate running, but I like both swimming and biking. If I can convince myself to do some training next summer, I should be able to improve on both my time and my placing.

I signed up 8 weeks ahead of time, but the event was full, and I was #43 on the waiting list. Usually only a handful of people drop out in time for the people on the waiting list to be helped. This year, I got a call with just 17 days to go stating that they were expanding the field by 50, so I was in. I hadn't been running at all, but was able to leg out a number of 2-mile runs to get ready.

Labels: , , , ,

Friday, January 04, 2008

JJ


At 4:32 PM yesterday my number one daughter Tia gave birth to my second grandchild. Joseph Allen Schum Junior weighed in on arrival at 7 pounds 3 ounces, and 18.5 inches long.

Labels: , , ,

Friday, August 10, 2007

Saiya


At 6:27 AM today my number two daughter Sheena gave birth to my first grandchild. Saiya Marie Schwartz weighed in on arrival at 8 pounds 6 ounces, and 20 inches long.

Labels: , , , ,

Thursday, July 26, 2007

Nothing So Obvious

There is nothing so obvious that it's obvious.

-- Academy Award winning documentary filmmaker Errol Morris in his essay on truth and photographs, on his New York Times blog, July 10, 2007


http://morris.blogs.nytimes.com/2007/07/10/pictures-are-supposed-to-be-worth-a-thousand-words/

Labels: , ,

Wednesday, March 07, 2007

Snow Shadow

I wouldn't have thought it was possible. Over the weekend we had several hours of snow flurries, along with a steady breeze.

This picture shows the snow shadow. Apparently the wind direction did not vary as the snow fell, allowing all of the snow to sharply align with the edges of anything that blocked the wind. The shadow lasted until the next day. Snow was still (slowly) falling when I took this picture.

Labels: ,

Tuesday, February 27, 2007

Dude

On his 17th birthday I wrote in here about my California Cat, Dude. He was the oldest cat I've ever owned, and today he gave up the fight after more than 18 1/2 years.

He was born July 9, 1988 behind the couch in the apartment I shared with then-girlfriend (now ex-wife) Melody in Lakeside, CA, on the same day that I flew to Illinois to check on job prospects that soon led to my return to Illinois following a 3-year stint in San Diego. I had him before and since my 16-year marriage, a fact I find amazing.

His father was my cat, "Tranch" (short for Tarantula, a name given by a friend who was amused by the long white hairs that stood out through his otherwise smooth black coat); his mother was Melody's cat Gizmo (who earlier survived a near-fatal encounter with a car, and had pins in her leg). On that same morning, my female cat Jasper & Melody's male cat JYC (Junkyard Cat) had a litter under the dishwasher that included Misty, who passed away in February of '04.

Dude & Misty were the 2 kittens that we brought with us from California when we moved. He's older than 3 of my kids (one of whom will graduate from high school this spring), and remained the alpha male in a 5-cat household.


Labels: ,

Friday, December 01, 2006

Ice Storm








Life in the Midwest. Sometimes it's hot out, sometimes cold. Last night it turned cold after being warmer than average for more than a week (mid-60s on Thanksgiving Day).

We woke up December 1st to the results of an overnight ice storm. Our two 50-foot Chinese Elms bore the brunt of the damage. Here's what it looked like first thing in the morning.

Labels: ,

Counter