Yesterday I rode the Nobel Canyon trail in Cleveland National Forest with Mike Hannon, Mike Morton and Stephen Lynch. Yes, it was two Mikes and two Stephens. I have posted a few photos and a movie here, and my GPS track can be seen here. The splits view of the ride shows there was one kilometer that rose 133 meters, which works out to over 13% average gradient for that kilometer.
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Nobel Canyon
Sunday, October 4th, 20092009 Tour Pool Wrap-Up
Tuesday, July 28th, 2009The 2009 Tour de France pool is over, and Team Storky came in fifth. In terms of the time gap to the winner, this team did better than any I’ve been part of before. But it lacked several things: luck and winners.
The team lost Levi Leipheimer, a nearly-guaranteed top-five finisher, Jens Voigt who always finishes tours well-placed and is capable of winning a stage, and Robert Gesink, a promising young Dutch rider who has won a Tour of California stage ahead of Leipheimer and finished seventh in the 2008 Vuelta a España. No other team in the pool lost a single rider of the caliber of Leipheimer, nor three riders of such skill and ability.
The team also got exactly two time bonuses, for a total of 25 minutes of bonus time. This put Team Storky as the second-lowest team in terms of accumulated bonus time, ahead of only the astoundingly unlucky Team John Arnold. Team Wells got over eight times as much bonus time as Team Storky. On one stage, a group of eight escaped from the pack and reached the finish before everyone else. Of those eight, three were on Team Storky. Time bonuses go to first, second and third. The Team Storky riders got forth, fifth and seventh. That outcome is emblematic of the kind of luck the team had throughout the tour. It appears that to win the pool, a team needs at least a sprinter or two that can finish well-placed on a number of stages reliably, something my team didn’t have.
Above: The fire department was training across the street from my apartment on Sunday, in no way related to the Tour de France. I just wanted to share that.
DTV Delivers
Thursday, May 7th, 2009Big news.
Universal Sports, which is part of NBC, is going to show the entire Giro d’Italia live! I’m guessing that because Lance is riding the Giro, Universal Sports figures Americans will be interested. Down here in San Diego, the local NBC affiliate broadcasts several digital channels over the airwaves. They have their main channel 39-1, that shows full-1080p high definition TV. They also have 39-2, a weather channel, and 39-3 shows Universal Sports. Neither is HDTV, but I’m not complaining. The Tour de France is always on cable, so I have to go to a friends apartment to watch it. I’ll be glad to watch this on my very own couch.
My mornings suddenly got much earlier for the next month.
Update May 9: The Giro is being streamed live online, not over the air. It is just a commercial-free stream of the Italian coverage (with inconsistent English commentary) on the Universal Sports website. I guess I read what I wanted to read. I’ll take it however I get it.
My Eddington Number is 48
Friday, January 30th, 2009A couple days ago I was browsing the internet on astrophysical topics, when I came across Sir Arthur Stanley Eddington’s wikipedia page. He’s best known for the Eddington limit, which describes the luminosity limit of a star as a function of its mass. Near the bottom of his page linked above, there is a description of the “Eddington number,” which for any person is the greatest number of bike rides they done which have been that at least that number in miles long. From the wikipedia page:
The Eddington Number in this context is defined as E, the number of days a cyclist has cycled more than E miles. For example an Eddington Number of 70 would imply that a cyclist has cycled more than 70 miles in a day on 70 occasions.
This is very similar to the Erdös number and the h-index, which measure a scientists publishing impact. I don’t have an Erdös number, nor an h-index, but I do have an Eddington number. And since I have a nice GPS database of my rides, I figured I could easily calculate it.

Above shows two Eddington calculations, in miles and in kilometers. The curved blue line is x=y, and it’s curved because the y axis is using a logscale. Where the blue line intersects the Eddington lines is my Eddington number. The downward arrows show my actual integer Eddington numbers (48 for miles, 74 for kilometers), while the upward arrows show that 49 and 75 aren’t above the blue line, and thus aren’t my Eddington numbers. Since the definition is in miles, my true number is 48, but the kilometer calculation shows that the number is also a function of your unit.
Unfortunately, I don’t have records before I got my GPS, so my true Eddington number is surely larger.



No More Tunnels
Saturday, January 3rd, 2009By far my favorite place to ride my mountain bike (that is reachable without driving) are the single track ‘tunnels’ that are typically reached through Peñasquitos Park (although they aren’t actually inside the park, they are on non-park city land). They are called ‘the tunnels’ because for most of their length they are covered by low bushes and trees just over head height. There are four of them that total a few miles in length and vary in technical difficulty. Until about a month ago, they were somewhat illicit and not patrolled, now they are very expressly illegal. During the rainy season I think it’s perfectly reasonable to close them. Muddy and wet ground is especially susceptible to erosion, and nature doesn’t need human help to erode the ground during the rainy season. The ditch my bike is pictured in above was fairly level ground the last time I was there, less than a month ago (*).
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Tags: Peñasquitos, Single Track
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