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[Android's Dungeon] New Sign at Trolley Trail/Paint Branch Crossing

2009-10-22T15:18:45Z

New Sign at Trolley Trail/Paint Branch Crossing
Originally uploaded by jongrantham
This morning I noticed some new signs at the long-problematic crosswalk
where the Paint Branch Parkway meets the College Park Trolley Trail.
Despite the button-activated flashing lights, there have been a number
of accidents at the crosswalk. Various solutions -- a stoplight, speed

[Android's Dungeon] New Sign at Trolley Trail/Paint Branch Crossing

2009-10-22T15:16:13Z

New Sign at Trolley Trail/Paint Branch Crossing
Originally uploaded by jongrantham

[Android's Dungeon] Halfway to France (and Back)

2009-09-12T10:18:41Z

Last month, I told you about biking halfway to Mexico. Yesterday, I had
the pleasure of biking halfway to France. I borrowed a bike from
Lausanne's free bike rental program and headed along the lake to Vevey,
about 10-12 miles away. It looks like if I had continued around the
circumference of the lake, another 10-12 miles would have put me in

[Android's Dungeon] In Search of the Northwest Passage

2009-09-09T08:51:05Z

I've been trying to find a good bike shortcut to Takoma Park and Silver
Spring. Driving, we have a more-or-less straight shot up East-West
Highway, but that isn't suitable for driving. And once I get close, the
Sligo Creek Trail and various on-road bike routes make things easy. But
it's tricky handling the distance between home and where the East-West

[Android's Dungeon] Google Books, genealogy and the Metcalfs

2009-09-08T15:53:05Z

I was reading an article about Google scanning books and putting them
on-line, and I decided to see if I could use some of these books to
help me with genealogy research. I found out that one of the books
scanned was "Metcalf Genealogy", published in 1898. As it turns out, my
great-great-great aunt married a Metcalf...

[Android's Dungeon] Grantham's Problem

2009-09-02T16:27:01Z

(Cross-posted from my math blog, which I'm pretty sure nobody reads.)
While reviewing the referee's 44 (sigh) suggested changes to my paper,
I came across an article published last November
entitled "Inefficacious Conditions of the Frobenius Primality Test and
Grantham's Problem".
I have a problem named after me!

[Android's Dungeon] Biking Santa Barbara

2009-08-31T01:14:48Z

I rented a bike when I was in Santa Barbara for a conference earlier
this month. I got in over 80 miles of biking in 4 days, so it was more
than I'm used to doing. One day I did 27.9 miles, a personal best (and
an exhausting one). The weather was cool, the terrain was flat, and the
bike paths were well marked -- all conducive to lots of riding. Two of

[Android's Dungeon] Halfway to Mexico (and Back)

2009-08-04T05:35:57Z

For Christina's birthday, we drove the bikes down to Coronado and rode
down to Silver Strand State Beach. When I looked at the satellite view
of the trip, I realized that the ride had covered about half the
distance from Coronado to Mexico (hence the title of the post).
The ride is really beautiful, with San Diego Bay on one side and the

[Android's Dungeon] Bike To Work

2009-07-24T02:15:20Z

On Monday, we drove down to Coronado and rented bikes. On Tuesday, I
biked to work, following the above path. It's a lot easier in
California, what with the bike lanes and such. I also biked to work on
substantially the same path the following two days -- I'm not going to
record any more trips to work unless I take a different way. I have one

[Android's Dungeon] 3 recent bike trips

2009-07-18T21:42:37Z

I've had three more bike rides in the past week.
Last weekend, I took another trip to Silver Spring (light blue path).
On the way there, I tried a partial shortcut. While the full shortcut
will undoubtedly save 1.5-2 miles, the partial shortcut was longer. On
the way back, I went the "long" way and didn't get lost, and it was

[Android's Dungeon] Early July Biking

2009-07-11T15:36:09Z

I like the above map as a way of summarizing a bunch of bike rides at
once. I've continued logging my trips at Everytrail; links below.
- On the 2nd, we rode to the bike shop and back (light red path). On
the way, I popped a tire, which led me to get nice new tires on my
bike.
- On the 4th, I inadvertently rode to Silver Spring (light green path).

[Android's Dungeon] This week's biking

2009-07-02T12:57:52Z

I've been happy enough posting my bike trips on Everytrail, so I've
stopped putting them here. Instead, I'm going to post weekly summaries
and pointers. (The embedding last time didn't work too great.)
Last Wednesday, we went to Arrow Bicycle to get a replacement inner
tube, a full sized bike pump and other accessories. The picture is of

[Android's Dungeon] Flat Tire Ride

2009-06-24T14:32:14Z

Martin yesterday told me about Everytrail an application/website for
tracking and sharing your bike rides (and other GPS-tracked
activity...hiking, motorcycling, skiing, etc.) I came home yesterday
with the idea of riding out to Paint Branch Golf Complex, but the
reality was much less exciting. I therefore present to you my first

[Android's Dungeon] Sunday Riding

2009-06-23T02:05:02Z

My riding yesterday was divided into two parts. In the early afternoon,
I headed to the bike shop for some supplies, including a bell and a
rear light. I had a horn, but riding up behind people and honking the
horn tending to be overkill. I also needed a rear light that wouldn't
pop off the bike (usually at the wrong moment -- crossing the street,

[Android's Dungeon] Trolley Trail in the Rain

2009-06-20T20:44:10Z

Since we've had continued storms, I decided to avoid paths that seemed
like they had danger of mud. That led me to the College Park Trolley
Trail. I started out on my usual path and was happy when I crossed
Paint Branch Road and got to the less-crowded part of the trail. Since
the maps I've been posting are probably not too interesting to those