A Curtain of Rain
Heading west on my ride yesterday I saw this curtain of rain falling in the distance. As it happened, I was riding west and I did get rained on by this front a few minutes after taking this picture. It wasn't too bad, just enough to get my legs dirty from spray off my front wheel, mostly.
more ...Paper beats Rock, Bears beat Buffs
A few days ago, on Saturday September 10, I attended the collegiate American football match between the University of California Golden Bears and the University of Colorado Buffaloes. Although we've lived in Boulder for over a year, and I work in the football stadium, this was the first Buffs game I have attended.
The game was an exciting one. The Bears led for most of the game, but the Buffs tied the game in the last minute of regulation, sending the game into overtime. Quite surprisingly, the Bears managed to win in overtime, something that as a True Blue, I am not used to seeing from my Bears.
This is the first season where the Buffs are a member of the Pac-12. I think they are not quite up to the standards of the Pac-12. Here are some of my observations from the game.
- The security getting into the game was a perfect example of security theater. They patted people down in a very cursory way searching for who-knows-what. Once inside the stadium, I didn't see security officers in the stadium at all until the end of the game. In the closing moments they were positioned in front of the student section in a weak attempt to prevent the students from rushing the field. How are 20 people in yellow jackets going to stop 4,000 drunk undergraduates? In the end, because the Buffs lost, the students stayed put.
- Note to self: For the next game I attend, I'm putting all kinds of goodies in my office the day before the game. No one seemed to notice when I went inside to get my water bottle this time (to avoid paying $3.75 (!) at the concessions for water), so I figure I can store even more stuff.
- The stadium feels a bit dated, kind of like Memorial was before reconstruction. The isles are tight and the access gates are narrow. The loudspeakers are located at one end of the stadium, meaning that they have to be extra loud to reach the other end. The head referee's microphone didn't work, so we had to guess what penalties were or catch the hand signals (which was difficult because he faced the other way during announcements). However, the views of the front range and flatirons are supreme.
- I noticed several times during the game that the PA people are, frankly, rude. I always thought that music is required to be turned off during plays, but the PA people would let it continue into the beginning of plays. Also, at least once when the Cal Band started to play after a Cal score, the PA played music over them. It's one thing to play over the 183rd playing of "Tribute to Troy" when playing U$C, but it's unacceptable to play over the Cal Band.
The only cool thing about CU is the running of the buffalo, Ralphie. I think there should be the running of the bear. How about a 800-lb grizzly bear running across the pitch at Memorial Stadium?
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Angry Clouds
Seen today from Betasso Preserve on my bike ride. There was no rain or visible lightning, but there was some wind and thunder.
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Boulder Canyon
In yesterday’s post, I mentioned that Rocky Mountain National Park is less than an hour away by car. Having the park so close is certainly a good reason to visit it often. However, there is stuff like this (below) in Boulder Canyon, which is only about 15 minutes away from our place by bicycle. This picture is from this morning's mountain bike ride. I guess what I'm really trying to say is, this is a nice place to live and do stuff outdoors!
more ...Some Rocky Mountain NP Pics
Twice in the last two weeks we have visited Rocky Mountain National Park. A while ago we realized "Hey! We live less than an hour from a National Park! We should visit it more often." And so we are trying to do that. Two weeks ago we went with Melissa's brother, Matt, and his lady friend, Kelly. Today it was just the two of us. Here are some pictures from the two visits.
Kelly, Matt and Melissa
The view from Trail Ridge Road
A trail winding through the Aspens
Melissa and Stephen and some rocky peaks
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Walker Ranch Panorama
This view is from Walker Ranch taken today, roughly in the center of this map looking south. If you look to the upper right, you can see a few rail cars on the railroad tracks. The tracks lead to the high altitude Moffat Tunnel.
more ...Tom Petty and the Heartbreakers – Hard Promises
I just love the anachronism that is the cover of this album. I'm not talking about the plaid shirt Tom Petty is wearing (which is in fact cool again thanks to hipsters), or his leather jacket. No, I'm looking at the racks of records in the background, and especially the display stand of 45 single records. No doubt the goal of the photo was to put Tom in a cool and hip situation, and I say "mission accomplished!". Styles are cyclical, and LP records are presently cool (this time only partly thanks to hipsters, but also to luddites who like the sound of analog music), but 45 singles are much more rare now. My theory is that the kind of person who will get up out of their seat to change or flip a LP, instead of clicking a mouse a couple times, is not someone who would buy just a song or two from an artist. They buy the whole album and listen to it while drinking their microbrews and eating non-pasteurized cheeses. Single-song purchasers are the ones who now go to iTunes and download the latest hot single from the latest generic pop music sensation.
On to the actual content of the album Hard Promises by Tom Petty and the Heartbreakers (TPatHs). I've been a fan of TPatHs for a while, so I had already heard many of the songs on this album. There are a few weaker songs (like "Insider") but overall the songs are entertaining. It's typical TPatHs. I have, in fact, actually seen TPatHs live, in Atlanta, of all places. I can say that Mike Campbell is an excellent guitarist and that Tom Petty was definitely high during the concert.
One of the stated goals of this project is to see how popular music has changed over my lifetime. TPatHs are kind of a counter-example to this. TPatHs are still making music that doesn't sound all that different from what they were doing 35 years ago. This is not a bad thing, per se, because good music is good music. I will say that if TPatHs have changed, they have gotten less rock-n-roll and a bit more bluesy, but it's not a big change.
In summary, if you like any TPatHs, you should check out this album.
more ...Van Halen – Fair Warning
Yet again, I've fallen behind on my album schedule, so this will be brief. Fair Warning by Van Halen, hasn't made much of an impression upon me.
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Kim Carnes – Mistaken Identity
I was going to accuse Kim Carnes of being a one-hit wonder with "Bette Davis Eyes" (which went to #1 on the charts, is the lead track of Mistaken Identity and the only song I had heard from this album previously), but I suspect that's because her main genre is Country, and I never listen to Country. She is apparently very prolific and is active even today as a producer with the popular act Kings of Leon.
But the fact that she's not a one hit wonder doesn't change the (other) fact that I generally found this album to be merely fine. Not at all terrible, but not interesting to me. To her credit she has an excellent singing voice, the music is not slipshod, and the lyrics are not nonsensical, but it just didn't appeal to me. My recommendation is to skip this album. However, if you do listen to it and you like it, I won't accuse you of having bad taste in music. Now, if you admit to liking Yoko Ono's music...
more ...My New Amusement Park
Yesterday the Valmont Mountain Bike Park opened up to the public, and today I went over to check it out. The park has been discussed for many years, and developed over the last few, so it's quite a moment for cyclists in Boulder. The park is oriented towards rider development of all ages. Each type of feature, such as cross-country or aerial areas, have options targeted towards riders of all ability levels. And even if you get yourself into something you can't handle, there are bailout options to get around things.
Dirt Jumps in the foreground, Boulder in the background.
The park is quite extensive and the designers have taken advantage of all the space they had available. Each trail feature is accessible by shared bike/walk trails, so parents can keep an eye on their kids even if they aren't on a bike. Running down the middle of the park are two irrigation ditches (which is a crude description of them, they are much nicer than that) which splits the park into smaller sections. The smaller sections keeps things more intimate which is good in a park that will tend to get very busy. Nearly all of the single track trails are one way, which is very nice. Right now the vegetation is low so it actually isn't a huge problem, but it is always very startling to come around a corner upon someone coming the other way.
A small section of the park. Click for the full PDF of the trails.
To be honest, much of the park makes me feel like I have no skillz (yes, that's skills with a "z"). Even the Skillz Loop, which is designed to be a place to learn skillz without being pressured by better riders to get out of the way challenges me. I tried most of the trails today, but not all of the technical options, especially stuff like this:
The park has two pump tracks, and I had fun riding one of them (Mesa Top) many times. The other one (Creekside) I did once, but it was very muddy and I didn't want to ruin the pump track or get any dirtier than I was already.
The Mesa Top Pump Park
I'm really excited about this new facility, and I hope to slowly improve my skillz over time at the park. It's only a couple kilometers away from where we live, so it's really convenient even if I only have an hour free. My only complaint right now about the park is it's clear they haven't quite figured out how to do the drainage from the sprinklers, because there are more than a few muddy spots around the park that contribute to trail destruction at an accelerated pace.
The Corkscrew, with steeply banked corners, viewed from the top.
The Slopestyle aerial trails area.
Someday this could be me!
more ...The Closest Non-Intersecting US Interstates
On our recent driving trip to Yellowstone and Montana, I had lots of time to think about random things while behind the wheel. One of them was to wonder of the major US Interstates, which two come the closest without actually intersecting? My guess was that it's some place on the East Coast, but due to my general lack of knowledge of East Coast highways, I had no idea which two it is.
Being a huge dork, I decided to figure it out.
Basically, it's actually not a very difficult thing to figure out. The steps are:
- Get the latitude and longitude coordinates for a number of points along each of the interstates.
- Determine which interstates intersect and eliminate those pairs.
- Put the coordinates for the interstates into a kD-Tree which will perform the search that determines the distance between non-intersecting highways in a fast way.
It turns out that the first step proved to be the hardest. I decided to use the data from the Open Street Map (OSM) project. This is a Google Maps-like website that is editable by anyone in the world, similar to Wikipedia. It will not give you directions like other mapping services, but it contains the geographical location of a wide variety of items, including and importantly (as the name suggests) roads. I looked into using the OSM APIs, but as far as I could tell either the APIs didn't do what I needed in an efficient way, or the servers were down. So I simply downloaded the 82 GB XML (5 GB compressed for download) dataset for the United States.
Begin rant feel free to skip to the next paragraph. I loathe XML. Any time that you have a 82 GB text file (apparently it's 200+ GB for the whole world) as your main distribution method, you're doing something wrong. Doing this project I learned as little about XML as I could to get just what I needed out of the file. Apparently the authoritative data is kept in a real database, but it appears that you can not download the data as a database. They do have a binary format description, but I can't find a link to download the data in that format. Furthermore, the world doesn't need yet another binary format. For example, they do not discuss endianness for their binary format on that wiki page, which is a big issue with binary formats. There are many other quality formats they could use (SQLite or HDF5). The binary format has a distinct Not Invented Here feel to it, which is nearly always a bad thing. Anyway, back to the main point of my rant. I don't care that the 82 GB XML file compresses down to 5 GB. Reading a 82 GB text file when you're searching for just a fraction of that data takes a long, long time, and is completely unnecessary. Every time I encounter XML it wastes my time in myriad ways. This time was no different. End rant
I'll spare you the full details and samples my low-quality Python code, but I munged the interstate data into a SQLite file, which distilled the data from 82 GB to 19 MB. Yes, that's nearly four orders of magnitude smaller. Then I used the much more convenient (and fast) SQLite file to build lists of interstate coordinates, which were fed into the kD-Tree for the nearest neighbor searches. The results are shown below. Note that there is no I-50 or I-60, and I eliminated I-45 from consideration because it's entirely within Texas, and therefore is not "major" in my opinion. I eliminated Hawaii's H-1 for the same reason. I have included links to maps showing the great circle between the nearest points of the highways. For highways that intersect, the link goes to one of the (more or less random) points of intersection.
Finally, we can see the answer I was looking for. Interstates 70 and 95 come within 5 kilometers in Baltimore at the terminus of 70, but do not intersect. So my suspicion was correct that it was somewhere in the East, so I have that to feel good about.
| X | 95 | 90 | 85 | 80 | 75 | 70 | 65 | 55 | 40 | 35 | 30 | 25 | 20 | 15 | 10 |
| 5 | 3338 | 2877 | 2826 | 690 | 2741 | 2484 | 142 | 1760 | 1822 | 910 | 1237 | ||||
| 10 | 1195 | 178 | 544 | 558 | 91 | 321 | |||||||||
| 15 | 2860 | 2423 | 2029 | 2009 | 1839 | 1272 | 1489 | 436 | 1093 | ||||||
| 20 | 804 | 764 | 615 | 173 | 283 | ||||||||||
| 25 | 2185 | 1730 | 1653 | 1453 | 1239 | 629 | 749 | ||||||||
| 30 | 1062 | 865 | 610 | 758 | 643 | 458 | 486 | 191 | |||||||
| 35 | 1404 | 985 | 569 | 516 | 358 | ||||||||||
| 40 | 587 | 550 | 347 | ||||||||||||
| 55 | 806 | 340 | 319 | 37 | |||||||||||
| 65 | 465 | 101 | |||||||||||||
| 70 | 5 | 152 | 234 | 105 | |||||||||||
| 75 | 12 | ||||||||||||||
| 80 | 413 | ||||||||||||||
| 85 | 582 | ||||||||||||||
| 90 |
p.s. If you really, really want to see the code I used for this, I can share it, but I'll have to pull out the hamsters that have taken residence in it. They're attracted to dusty littered places, you know.
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