Shallow Thoughts : : Oct
Akkana's Musings on Open Source Computing and Technology, Science, and Nature.
Sun, 31 Oct 2004
Every time I see someone ask about image formats, I think "Someone
really ought to write up a howto explaining the difference between
GIF, JPG and all the other formats, and what they're good for."
There probably are documents like this, but I've never seen one.
So I wrote one.
Image
Formats for the Web and Elsewhere.
(I'll probably give a Toastmasters talk on the subject as well.)
Tags: writing
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15:25 Oct 31, 2004
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Thu, 28 Oct 2004
The Florida post office has somehow
lost
58,000 absentee ballots in Broward County, FL.
They say they're mailing out new ballots, but that
(not mentioned in the article) blithely assumes that everyone
who voted absentee did so frivilously, not because they were,
say, going to be out of town during the election.
By a staggering coincidence, Broward was the county which gave
Gore the biggest margin in 2000.
Meanwhile, news from the EFF from last week when I was out of town:
Santa
Clara County poll workers are being trained not to offer voters a
chance to use paper ballots instead of electronic voting
machines.
I've been rather hoping that the EFF (or someone) would organize
protests near polling places, trying to inform voters of their
rights. But no such luck. Instead, they've set up a site with
a big flash movie with monotonous music and no information that
couldn't have been shown better in a simple fast-loading html page.
If you want to watch the flash movie, it's at
PaperOrPlastic2004.org
but there's really nothing else there besides the movie.
Spread the word anyway. Tell everyone you know in the affected
counties (Santa Clara, Orange, Alameda, and Riverside Counties.
Napa, San Bernardino, Merced, Plumas, Shasta, Tehama, and Riverside
counties) that they can request a paper ballot, and that way leave a
paper trail that can be verified in case of a recount.
Tags: politics, election04, elections, voting
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23:43 Oct 28, 2004
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Wed, 27 Oct 2004
Photos from the
trip are up (except for panoramas which still need to be
stitched).
Tags: travel, anasazi
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11:18 Oct 27, 2004
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Mon, 25 Oct 2004
Yesterday and today were travel days -- supposedly nothing much to
report. But it turned out otherwise.
Nothing much yesterday except the herd of bighorn sheep grazing by
the side of the road as we left Moab. (We had planned to stay in
Moab for a few days, but the weather turned sour.) The drive
through the San Rafael Swell is always impressive, but I've written
about that
already.
Today, first, a quick stop by Kolob Canyons, a small branch of Zion
National Park accessed right off I-15. It's marvelous: a very
short road loop with stunning views, and three hikes of varying
lengths. We didn't do any hikes due to weather and health issues,
but we'll be back!
After leaving St George and Utah and before entering Nevada,
I-15 briefly passes through Arizona in the impressive Virgin River
Gorge. Arizona doesn't bother with trivialities like nice roadside
view areas like Utah and Colorado do.
But there's a BLM area flaking the north side of the gorge, with a dirt
road: the Beaver Dam Mountains Wilderness Area. We went a little
way up the road; we didn't find views of the gorge from there,
either (perhaps farther up?) but the rocks were quite interesting,
evidently a mixture of rhyolite and basalt with some bits of
tuff and river cobbles (did the Virgin make it up this high before
the area was uplifted, or are the cobblers from streams which used
to run from higher still?) We'll be back to explore further (with
a BLM map, I hope).
Returning to I-15 and crossing into Nevada, we chose a detour:
instead of following the interstate through the rush-hour traffic of
Las Vegas, we swung left onto a little highway that cuts down by Lake
Mead, marked as "scenic" on the map?
Getting through the tiny town of Overton took longer than we
expected; its "so ridiculously excessively low as to be obviously
a speed trap" speed limit zone went on forever. But we finally
emerged out the other side, passing the Lost City Museum (curiously,
just last week we'd read an article in the LA Times about an old
town near there which had been buried for most of last century by
Lake Mead, but which had re-emerged in the last few weeks due to
record low water levels, creating great interest among historians).
The scenery began to get interesting right away. It offers very
little in the way of views of the lake (unless you drive down the
side roads leading to the lake itself), but the area is "painted
desert" of bentonite or a similar ash, punctuated by jagged peaks
of volcanic rock. Most of the land is part of the Lake Mead National
Recreation Area. Numerous parking areas are located at small oases
named This-or-that Spring. Some of the springs are visible from some
distance as a grove of palm trees. Are any palm trees actually
native to the American southwest, or were they all introduced by
settlers?
Update: Apparently the origin of these palms is a point of
dispute, but there's quite a bit of evidence arguing for their
being native to the area.
William Spencer sent me a link to
a page discussing the issue
and the fight to save the palms.
This goes on for miles, and then gradually bits of brighter color
begin to appear, in the shape of red sandstone. We stopped at a
parking area on the left, and found a true jewel: Redstone, a little
rest stop with a trail of maybe a mile which goes out around the
vividly red rocks, with occasional interpretive signs which are
interesting and not patronizing. The rock is Aztec Sandstone,
formed from dunes which covered the area some 130 million years ago,
with wonderful cross-bedding and weathered textures, and nearby
mountains of black basalt to provide contrasting color.
After taking the Redstone hike, we continued on the highway,
stopping at some of the pullouts, including one which included
an interpretive sign describing the "bowl of fire", resulting from a
layer of Aztec sandstone which swelled into a domed shape, then
eroded from the top, leaving an outer ring. The fiery red ring is
easy to see among the darker layers surrounding it.
Presumably the nearby Valley of Fire state park is also Aztec
sandstone sculptures; it looks like it from a distance. We wished
we'd taken that route, and will next time.
The scenic highway ends in Henderson, leaving us to fight our way
through yet more heavy traffic (no matter which way you approach
Las Vegas, or at what hour, or how hard you try to bypass the center
of town, somehow you always end up in a traffic jam!) to return
to I-15 and head down to our destination of Primm, musing on the
long, gradual talus slopes so typical of the Mojave desert, and
how superficially similar they look to a shield volcano like Mauna
Koa. I wonder how the angles of repose compare? (Alas, there's no
internet in Primm, so that's a question for a later time.)
Photos of Kolob and
Redstone.
Tomorrow: home!
Tags: travel, anasazi
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Sat, 23 Oct 2004
I've wanted for years to see the confluence of the Green and
Colorado rivers: the place where the west's two biggest rivers
meet, mingling their different colored waters into the larger
river which is the lower Colorado, flowing down to become
Cataract Canyon.
The Confluence is hard to get to, though. The only viewpoint above
river level is located in the Needles district of Canyonlands
National Park. Sounds easy enough; but the only road that goes
near it is a technical jeep trail called "Elephant Hill",
involving tricks like five-foot rock drop-offs. A bit beyond
our skills or vehicle. So instead, we drove to the beginning of
Elephant Hill, then mountain biked from there. It's about 9 miles
to the confluence overlook (then a half-mile hike from there), and
about 6 miles back (it's a loop trail with one-way sections).
First we had to get to Canyonlands. We took the scenic route from
Monticello over the Abajo mountains, offering great views of the
lacolith triangle: the Abajo, Henry, and La Sal mountain ranges
are all rock which has been warped upward by subterranean magma,
without actually being made of volcanic rock themselves.
On the Saturday of Utah's week-long deer hunting season, the Abajo
route was crawling with trucks filled with blaze orange clad
passengers, pulling trailers laden with ATVs. Every pullout,
every campground, was full of hunters.
Ironically, twice during the day we had to slow down (and once,
stop) for large groups of does wandering near or across the road.
We never saw any bucks, but I guess the number of does on the road
suggests that the deer population isn't in any serious threat from
the hunters. But we nevertheless were glad we were going to be
doing our riding in a national park today.
Elephant Hill is as technical as we remembered it from our last
visit to Needles. We tried to ride up the hill, but gave up fairly
early and walked the steep sections. The trail alternates between
short, impossibly steep and technical rock sections (which we walked),
moderately steep and technical rock sections (which we mostly rode,
and enjoyed immensely) and long near-level stretches of deep fine
red sand (fun if you don't mind sliding sideways).
Dave rode more of the rocky uphills than I did, and I rode more of
the rocky downhills. I biffed on one downhill, coming off a rock
ledge into deep sand and landing hard on one hand. No permanent
damage.
No bikes are allowed on the half-mile section of trail from the end
of the road to the overlook, so we had to stash our bikes in the
bushes and continue on foot.
The confluence overlook is fabulous! It's just like the pictures:
you can see the boundary where the two differently colored rivers mix
to form one larger river. Apparently the colors vary depending on
what's been going on upstream; every picture is a little different.
Today, both rivers were muddy green, but different shades, with the
Colorado being darker and clearer than the Green. On the horizon,
you can see the three districts of Canyonlands: Island in the Sky
(between the two upper rivers), the Maze (along the west bank of the
Green) and Needles (where we stood, on the east bank of the Colorado).
The ride back was surprisingly easy, though going uphill through the
sandy stretches was a workout. We got back to Elephant Hill just as
a couple in a rented jeep began the first descent, so we had a
chance to see how it was done. The Jeep handled the tough descent
easily. I bet it didn't seem as easy from the driver's seat as it
looked from the outside.
Photos.
Tags: travel, anasazi
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Fri, 22 Oct 2004
Our scenic loop to the Valley of the Gods began with cold, windy,
overcast, drizzly skies. But as if to make up for the weather, we were
greeted with a rainbow almost as soon as we hit highway 95.
Or maybe that was to make up for the snow flurries we encountered
a few miles later. Whatever.
We headed down highway 261, eschewing Natural Bridges National
Monument. Been there, done that. We were headed for Muley Point,
which turned out to be an unmarked dirt road turnoff just before the
Moqui Dugway. Four miles of relatively good dirt road led us to
two stunning viewpoints overlooking the sinuous San Juan river
and points beyond, such as Monument Valley, Alhambra Peak, and
Valley of the Gods. The wind was icy, but the view was worth it.
Returning to the highway, we headed down the Moqui Dugway (variously
spelled Moki or Mokee, depending on which map you use; everyone
seems to spell Dugway the same). This is a steep (11%) grade,
gravel except on a few turns where pavement returns, winding 1100'
down the side of Cedar Mesa to the bottom. Why it's gravel when
the rest of the highway is paved isn't clear. But it's fun.
At the bottom of the Dugway, a BLM dirt road goes left into Valley
of the Gods. But we decided to see the Goosenecks of the San Juan
first.
At Goosenecks, the San Juan river travels over six river miles in
the space of only a mile and a half. It's held up as one of the
best examples anywhere of an entrenched meander, where a
lazily meandering river on nearly-level terrain cuts a shallow
channel, then rapid uplift of the area (in this case, the Colorado
Plateau) causes the river to cut a deep canyon.
There are entrenched meanders all over the area -- such as
Bowtie
Bend and Dead Horse Point -- but nowhere are there so many,
in such a short space. It's very impressive.
And that's all there is to Goosenecks of the San Juan State Park --
one amazing overlook. There's a trail somewhere (the Honaker Trail,
namesake for the rocks comprising the upper two-thirds of the San
Juan's canyon; the bottom third is the Paradox Formation, both
Pennsylvanian layers of limestone and shale) but it's accessed
from outside the park, and there's no information about it at the
park.
We backtracked to the west end of Valley of the Gods Road and began
our divine journey, following a guide we'd picked up at the
visitor's center in Blanding. The first rock on the list was
Balanced Rock -- I pointed it out. "No," said Dave, "that's got
to be Lady in a Tub. That's exactly what it looks like." "Um, I
don't see that on the list here." It turned out that this was an
alternate name for the same rock, listed on the map but not in the
guide. And indeed, it was a good name -- except that as we
proceeded down the road, it became a Man in a Tub.
It's a while before the next Named Rock on the guide, but that's
okay; there are fascinating rock formations everywhere. The light
was difficult for photography, since it was still mostly overcast,
but that made for dramatic light when the sun did come out.
And a few miles in, I spotted an even more interesting formation:
a tarantula making its way across the road. We go
tarantula spotting every year, but the season when the males go
wandering aboveground in search of females is so short that we
often miss it. This year we were sure we'd missed the season at
home; so finding one here was serendipitous. This one appeared to
have no inclination to get off the road, so we had plenty of time
to shoot photos (including "tarantula walks over the camera" and
"real tarantula completely ignores our rubber tarantula") while
we gently tried to persuade him to walk by the side of the road
and not in the middle.
We invented names for unnamed rock formations, like
"Mohawk with Squirrel on Head" and the nearby "Organ Grinder's
Monkey, with Drum". Rooster Butte should have been Senorita Butte
-- a Spanish dancer with full flowing skirts.
Occasionally the road became mildly technical, with rocks or gully
crossings. "Chacoan speed bumps!" exclaimed Dave.
Two painters had set up camp right in the middle of a wash,
with their easels right by the road -- maybe dust is part of
the art, and a flash flood just gives an artist more inspiration.
Setting Hen Butte (its official name)
has giant sandstone eggs all around it.
Too soon, we found ourselves at the other end of the road, and the
highway. But before heading back to Blanding, we took a detour
to Sand Island, near Bluff, to see what was there. What was there
was petroglyphs -- a whole wall of them, comparable to the much more
famous Newspaper Rock to the north near Monticello. Excellent rams
and elk, snakes, and other figures. But what interested me most was
all the Kokopelli-like figures. Kokopelli (the dancing flute-playing
trickster) shows up in nearly every gift shop in the southwest.
He's so prevalent that a mapmaker in Moab (Cheap is Real)
comments on the back of each map that it is a "100% Kokopelli-free
product"). Yet in the rock art I've seen, I have yet to see an
actual Kokopelli -- until Sand Island. Sand Island is definitely
not a Kokopelli-free zone. But it's a great set of petroglyphs.
Photos of
Goosenecks,
Valley of
the Gods, the tarantula, and
Sand
Island Petroglyphs.
Tags: travel, anasazi
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Thu, 21 Oct 2004
Driving around Farmington, NM is a little different from driving
around California.
Heading out of town, we passed the Permian Power Tong
building. I guess you'd better be careful when complaining
about your electricity bill in Farmington! Especially if you
want to assert that it comes from the Mesozoic, or something.
Not long after that, we passed Jimmy's Swabbing Service.
I don't think I want to know too many details about that,
nor about the Four Corners Bull Test Station we saw later.
Update 11/8/2006: Someone from the Permian Power Tong wrote
to let me know that they're an oilfield service company, not
an electric company.
We stopped at the Aztec Ruins, so misnamed because early
white settlers apparently thought these Anasazi ruins were left
by the Aztecs (?). It's a small park, with one trail, but the
ruins are excellent and the guide is full of information about
the architecture. The structures were originally built by
Chacoans and most of the lower masonry is similar to what
we saw in Chaco Canyon, but was later modified (for repairs
and additions) in a style more similar to Mesa Verde.
Then, much later, some of the masonry was re-done by the
park service in a well meaning but misguided attempt to
stabilize the fragile structures, with the result that there's
a lot of modern concrete, metal drains, and other anachronisms
and apparently it's sometimes hard for modern researchers to be
sure what came from which era.
The Chacoan work is the most beautiful. They liked to alternate
layers of large bricks with small, or red with other colors, whereas
the Mesa Verdeans used fairly uniform large bricks everywhere.
Someone who came along later (perhaps the Mesa Verde group, perhaps
a later tribe) added rounded river rocks in places, from the nearby
Animas river. The Animas may also have been used to float the
hundreds or thousands of logs needed for the roofs of the
structures; the wood apparently came from the mountains,
near Durango, since it's wood which wasn't available locally.
Although the park service tries to be much more careful now,
we saw some modern repairs on the structure while we took the
self-guided tour: Navajo bricklayers pounded sandstone
with a hammer, chipping flakes off to make it the right shape
to fit into the spot being repaired.
Outside of the park, we explored the town of Aztec, which has a nice
little suburban downtown area surrounded by miles of scrubland with
residential trailers. We noticed that the downtown area had a
predominance of Kerry signs, unlike Farmington and the rural areas
outside Aztec where Bush signs prevailed.
We took back roads from Aztec, eventually passing through Mancos
(the Mancos Motocross, Now Serving Elk Burgers -- what more
could you want? -- and the Reptile Reserve of Southwest Colorado)
and the poshest highway rest stop we've seen anywhere, at
Sleeping Ute Mountain, which offered its own hiking and pet
exercise trails.
Our plan was to stay tonight in Monticello, UT, which is close to
Canyonlands' Needles district and lots of other interesting places.
The first hotel we tried should have given us a clue as to what
was coming: the sign proclaimed "Big Buck Display!" A big dollar
bill? wondered Dave.
But it turned out this is the beginning of Utah's week-long
deer hunting season, and that Monticello is the deer hunting
capital of southeastern Utah (for some reason).
We pushed on to Blanding instead.
Blanding looked like a bigger town in the AAA guide (more hotels)
but isn't really. Fortunately, the Best Western has wi-fi
(the only place in town, unlike Monticello which has two hotels
and a cafe). The router gives the wrong address for the DNS server,
but we guessed at the right address and edited /etc/resolv.conf,
and things work okay as long as you remember to do that before
making any net connections (otherwise the wrong DNS info gets
cached by some proxy server somewhere).
Dave went to the office to see if anyone knew about this.
He was told: "They just fired up the system two weeks ago,
and it has been slow," but no one knew any more detail than that.
Photos.
Tags: travel, anasazi
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Wed, 20 Oct 2004
I've been curious about Chaco Canyon ever since as a kid I read an
article in
Sky & Telescope about the Anasazi Sun Dagger,
a rock structure whereby at the solstices and equinoxes the sun
creates a narrow sliver of light projected onto a spiral petroglyph.
Unfortunately, it turns out that the Sun Dagger is not open to
visitation (by the public or even by most researchers). In the
1980's it was deemed too fragile for visitors, and the site was
closed down. There are some other astronomically oriented
petroglyphs, but no one seems to know exactly where, or to
have a complete list.
Getting information on Chaco is a bit difficult. There's not much
useful information on the web, the park doesn't have specialized
handouts like a lot of other parks (many parks have one-page
handouts available for the asking on subjects such as geology,
astronomy, petroglyphs, etc) except for one giving a brief listing
of the available hiking trails. The ranger at the visitor's station
was somewhat reticent: he recommended a couple of hiking
trails, and told us that the Sun Dagger was located high on Fajada
Butte, but not much more. I noticed a picture of some petroglyphs
thought to depict a supernova, and asked where they were, but he
apologized "Sorry, I don't go out that trail much".
Nothing to do but go try some stuff and see what's cool. We visited
all the ruins along the park road, then headed up the steep trail
to Pueblo Alto and the Pueblo Bonito overlook, which begins by a
scramble through switchbacks over broken rocks, followed by a steep
ascent through a narrow gap in the rock wall. Fun! And daunting:
but it turns out that once you squeeze through the gap, you're up
on top of the mesa and mostly finished with climbing.
The mesa top is interesting rock: white, layered mudstone, full of
interesting embedded objects (presumably plant fossils, though some
of them actually look like bone).
The Fajada Butte interpretive sign, the only mention we
found of park geology, says of the butte:
Cliff House Sandstone forms the upper layer with deposits of fossil
shells, clams, shark teeth, and marine sand.
None of these fossils seem to correspond with what we saw embedded in
the rock along the Pueblo Alto trail. More research is required.
The view of Pueblo Bonito from above is marvelous and well worth
the short and interesting hike. The semicircular shape of the great
house, not obvious from below, is striking when viewed from above.
The hike up to Pueblo Alto was pretty, and enjoyable as a hike, but
Pueblo Alto itself is much less interesting than the ruins down in
the canyon. We wished we'd gone the other way on the loop trail
for more birds-eye views of the canyon houses.
Another interesting aspect of Chaco: their astronomy program.
They have a fixed observatory (a dome housing a truss-tube
dobsonian of about 18") and something outside on a tripod
(probably a big Schmidt-Cassegrain).
The visitor's center was full of photos of astronomical
objects, as well as some information about light pollution.
It's nice to see a park so interested in astronomy, especially
with the sort of skies they must get at Chaco. Alas, we weren't
able to stay the night.
But Chaco's big mystery is the "roads". The park literature
talks about the amazing roads the Chacoans built,
stretching for hundreds of miles between Chaco and neighboring
settlements in many directions, used for trade between tribes.
On the Pueblo Alto hike, a short
segment of one such "road" is roped off and signed: a wide
rectangle of more or less bare rock, perhaps ten or fifteen feet
on a side, lined generously with rocks on two sides. With a lot
of imagination, you could imagine a boulevard continuing in this
fashion, rocks lining the left and right sides of the "road" like
a huge version of some national park trails.
Dave smelled a rat, and dug further.
These "roads", apparently, were originally detected as unexplained
straight lines appearing in infra-red images, using NASA's
TIMS system.
Archaeologists subsequently searched the ground and found some
short segments which looked vaguely road-like, and drew maps
connecting the segments. Here's one such
map of the Chaco
road system. Notice anything unusual? Like the fact that the
ground map doesn't actually match the lines in the IR image?
Note also how straight the "roads" are in both theories.
It gets even weirder. One of the park's roadside pullouts points to
a "Chacoan stairway" high on a mesa, and comments that the stairway
was part of one of the roadways. The stairway is there, and it's
neat. There are other stairways elsewhere in the park -- we saw
photos (though the one section we saw up close, on the Pueblo Alto
hike, was a bit too subtle for either of us to find the "stairway"
on the indicated rock).
Why would the Chacoans build roads like this?
It makes no sense. Why would a prehistoric people with no wagons
or pack animals need rock-lined ten foot wide "roads", arrow
straight and made without respect to the local topography?
Let's look at this practically. You're a Chacoan heading
out to trade with someone in a pueblo to the south, or a southern
resident travelling to Chaco. You have a choice between
following a straight road, which requires you to climb up onto an
800 foot mesa, then down a precipitous set of rock stairs which lead
to a steep scramble back down to the canyon bottom; or you can walk
a quarter mile west and stroll through the huge gap between two
mesas, without having to climb or descend at all. You're travelling
on foot, carrying your pottery or baskets or whatever it is you're
bringing to trade. Perhaps you have your family and kids along.
Which route would you choose?
The stairways are there; and the "road" segments are there, too.
But that doesn't mean that they connected to form hundred-mile long
roads between communities. The stairways are useful for locals who
want access to the mesa tops -- perhaps for defense, or religious
purposes, or just for sightseeing. The short "road" segments on
the ground -- who knows? Perhaps parade grounds. Or maybe they
were malls, where vendors lined up to spread their wares out for
customers to view. There are lots of possible explanations!
Photos.
Tags: travel, anasazi
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Tue, 19 Oct 2004
The weather wasn't really much better this morning, but we decided
to hike the White House trail down into the canyon anyway.
Good move! It's a beautiful trail which definitely belongs on a
top-ten list of park trails (along with trails such as Hummocks
at Mount St. Helens). And as a bonus, it's not even particularly
strenuous -- the canyon is only 600 feet deep at that point, and
the trail is fairly gradual. It descends from the cross-bedded
riverine rock of the Shinarump member of the Chinle formation,
down into the thick de Chelly sandstone, where it winds through
little tunnels and around switchbacks, past shrieking squirrels
and soaring ravens,
giving ever-changing views of the canyon floor.
At the bottom, the trail skirts a Navajo ranch (no photography
please) then follows the stream bed, lined with cottonwoods in glorious
fall foliage, to the eponymous ruin, surrounded by fences to keep
out vandals and well-meaning but overly enthusiastic tourists.
Nearby, an unattended horse grazed, and a local rancher followed
his sheep herd as they browsed along the riverbed.
Impressive ruins. Lovely trail. Go see it.
After climbing back up to the trailhead, we went off to explore
the north rim (which is technically a different canyon, del Muerto
rather than de Chelly). The north rim viewpoints are sparse, but
well chosen; they show more ruins, from shorter distances, than the
south rim viewpoints.
After leaving the park, we debated whether to go south to Gallup,
or north to Shiprock and Farmington. Shiprock won.
But after turning onto highway 13 to cross the Chuska
mountains, we questioned the choice. Large signs
warned of upcoming highway construction, road closure, and seasonal
(winter) road closures over Buffalo Pass. This not being winter yet,
we proceeded with trepidation. Our fears (and the warning signs)
were unfounded: although the road is narrow and twisty, the
pavement is excellent and the views outstanding.
Just past the summit, we got our first view of the
immensity of northwestern New Mexico spread out before us
-- and immediately realized that Shiprock was not what we had seen
yesterday from Spider Rock overlook. Shiprock is unmistakable
and striking. It sails on an immense flat plain,
tossed on waves of sage, trailing a wake of basalt behind it.
It dominates the landscape for many miles in any direction.
Shiprock is a giant volcanic neck: lava which sat in the neck of
a volcano, and hardened there. Later, the volcano and its
surroundings eroded away, leaving only the neck. But there's more:
in addition to the neck,
Shiprock's lava also squeezed through a dike, a vertical seam
stretching for many miles on either side of the volcano. After the
surroundings eroded, what was left was an immense wall of lava, only
a few feet thick but some fifty feet high and miles long.
The triple-A map showed a dirt road just east of where the highway
crosses the dike, leading up alongside the rock. Sure enough, the
promised road appeared just where the map said it would. Woohoo!
It turned out to be an unmaintained jeep trail, a nice challenge for
our little RAV4 (which had no trouble with it). The road parallels
the dike up to the neck itself, giving wonderful views from any angle.
Unfortunately the area right next to the neck is spoiled by grafiti,
but the rest of the area is fabulous.
We pulled into Farmington later than expected, after stopping to
help a Navajo family whose truck had broken down. Unfortunately we
didn't have any mechanical insights they hadn't already tried,
but we gave one to the nearest store to call for backup.
I hope everything worked out all right.
Farmington is the Big Gorilla of the four corners area, by far the
biggest town around. Happily for us, it's also fairly well wired,
and nearly every motel sports wi-fi that actually works (the only
catch being that they fill up surprisingly early on weeknights;
we're still not sure why).
It's a deceptively large town, with a small college and the usual
assortment of restaurants and businesses, several rivers,
and plenty of farmland on the outskirts, befitting its name.
Photos of de Chelly
and Shiprock.
Tags: travel, anasazi
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23:29 Oct 19, 2004
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Mon, 18 Oct 2004
I managed to wheedle Dave into taking the back roads from Winslow
to Chinle, crossing more of the Navajo nation rather than staying
on the interstate we've seen before.
Good move! The roads are fine (if a bit slower than an interstate
highway) and the scenery is terrific. Dave reciprocated by
making an impulse turn into the Little Painted Desert county
park's overlook -- empty except for us, the vista across
striped layers of bentonite (is that Moenkopi, or Morrison?)
rivals its namesake to the southeast in everything but size.
Near Castle Butte, a striking wall of basalt curves gracefully
across a plain, an obvious remnant of a vertical dike from which
the surrounding, softer rock has long since worn away.
This is what created Shiprock, a larger and more famous formation
of the same type which I'm hoping to get a chance to see later on
this trip; but the thin, curving walls near Castle Butte, with their
spiky towers, are marvellous examples.
The roads through this part of the Navajo reservation (perhaps it's
true everywhere) are open range. Cattle grazed near the road, and
at one point I had to stop suddenly when a horse decided to trot
across the road in front of us.
Canyon de Chelly sits right on the edge of Chinle, closer than we'd
realized from the map. In fact, Chinle, "where the water
flows out", is located right at the mouth of the canyon, where
the surrounding mesas drop to the level of the river
at the canyon's bottom.
De Chelly itself is really Tseyi, meaning "in the rock"
in the language of the Diné (i.e the Navajo).
The Spaniards had difficulty pronouncing this (sometimes spelling it
"Chegui"), and when early American settlers moved in, they mis-heard
it again and assumed they were hearing "cañon de chelly",
Spanish for "canyon of rock", pronounced, more or less, "dee shay".
But the Tseyi name is still prominent in town and in park
literature, this still being Navajo land. The park literature
says it's pronounced "say-yee", but a Diné woman in town
pronounced it for us more like "tsay-yeh".
The park literature mentions that there may be some stray dogs
wandering in the park, and warns not to feed them. The town of
Chinle has a problem with too many stray dogs; feeding them "only
makes the problem worse." It doesn't mention stray horses, though quite
a few wander the mesas above de Chelly and occasionally cross the
roads.
We followed Dave's Rule of Parks: go to the end of the road first,
because that's where the really good stuff is. The end of the road
for Canyon de Chelly is the end of the south rim road, or Spider
Rock Overlook. Spider Rock itself is an impressive spire of
sandstone (de Chelly sandstone, in fact: a thick desert dune
deposit like Navajo sandstone, only much older, at 230-260 million
years, and also much redder) standing in a wide, flat canyon
of green and autumn gold.
On the horizon far beyond Spider Rock stood a striking dark butte.
Our first view of Shiprock?
(No, as it turned out.)
The other attraction of Canyon de Chelly is the Indian ruins.
Anasazi cliff dwellings pepper the cracks in the canyon walls,
and are visible across the canyon from many of the overlooks.
Bring binoculars (and a good zoom lens, if photographing).
The star ruin of the park is called White House, and it's accessible
via a trail which climbs down from the south rim and crosses the
canyon. It was beginning to rain as we arrived there, as well as
nearing twilight; we hope for good weather tomorrow morning.
We had to drive around a tired looking black dog lying on the
(presumably warmer) roadway, seeming unperturbed by the cars going
by and disinclined to move. Another dog followed tourists around
with a hopeful expression.
And Dave's Rule of Parks? It doesn't work as well at Canyon de
Chelly as at most parks. White House is far better than any of the
ruins visible from the farther overlooks; and in fact, the very first
overlook (last for us, since we were visiting them in reverse order),
called Tunnel Canyon, gave a lovely view down a narrow
canyon to the riparian zone below. Maybe we were just lucky with
the light, arriving at Tunnel as the setting sun pierced through
a hole in the otherwise unbroken cloud layer.
There's a trail going down from Tunnel, too, but it's only open
for guided tours. (Access into Canyon de Chelly requires a guide,
except for White House trail, because some 40 Navajo families still
live and farm inside the canyon.)
After appreciating the lovely light, we chatted
with a Diné woman selling jewelry, and watched a couple of
puppies trot in, search for food, and then run off toward home.
The town of Chinle is neither depressing, like Tuba City or the
area around Monument Valley, nor modernized, like Kayenta.
It's small and sparse, with only two
hotels (plus the one inside Canyon de Chelly) and few restaurants
besides the two associated with the hotels -- a few fast food
eateries and a pizza parlor. Yet at night, lights (mostly
low-pressure sodium, I was happy to see) twinkle from a wide
area, hinting that there's quite a bit more to the town.
We tried to explore, but couldn't find our way to the pockets
of light we could see from the main part of town. So we reluctantly
settled for a dinner at the Holiday Inn's restaurant, which was
surprisingly good. Native American towns don't seem to succumb to
chain-hotel-itis quite so much as other towns do.
And the dogs! Everywhere you go in Chinle, a few dogs appear out
of nowhere to follow you. Dogs fade in and out of the plants along
the roadside, and haunt every park overlook and restaurant parking
lot. Most of them look quite young -- which may bespeak a short
lifespan -- though most of them also look fairly healthy and
friendly. They wag, and play, and appreciate a head scratch,
and otherwise behave pretty much like pet dogs everywhere.
Photos.
Tags: travel, anasazi
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22:32 Oct 18, 2004
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Sun, 17 Oct 2004
I-15 follows the San Andreas fault as it cuts through the San
Bernardino mountains. The spectacular exposed hogbacks,
reminiscent of the Devil's Punchbowl a few miles north
along the same fault, or perhaps of Colorado Springs'
Garden of the Gods, leave no doubt that massive geologic
forces are at work.
Around Victorville, the power towers stand like four-footed
animals with huge wings outspread -- power pegasi.
But beyond Newberry Springs, at the western edge of the
Pisgah Crater lava fields, they change to the broad-shouldered
power kachinas seen in parts of Utah.
Nearby, a raven practices no-flap take-offs, presenting outspread
wings to the constant gale, lifting smoothly a few feet off the
ground, then floating gently back to earth to try again.
A commercial on the hotel TV advertised a laser level using
"refractive lens technology". Wow! What a breakthrough!
Tags: travel, anasazi
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23:33 Oct 17, 2004
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Wed, 13 Oct 2004
I took a break from housepainting yesterday to try out a couple
of new linux distros on my spare machine, "imbrium", which is mostly
used as a print server since Debian's CUPS can't talk to an Epson
Photo 700 any more.
The machine is currently running the venerable Redhat 7.3 -- ancient
but very solid. But I wanted a more modern distro, something
capable of running graphics apps like GIMP 2 and gLabels 2.
I considered Fedora, but FC2 is getting old by now and I would
rather wait for FC3.
First I tried SuSE 9.1. It was very impressive.
The installer whizzed through without a hitch,
giving me lots of warning before doing anything destructive.
It auto-configured just about everything: video card,
ethernet, sound card, and even the printer. It missed my LCD monitor;
X worked fine and it got the resolution right, but when I went in to
YaST to enable 3D support (which was off by default) it kept whining
about the monitor until I configured it by hand (which was easy).
It defaulted networking to DHCP, but made it clear that it had done
so, which made it easy to change it to my normal configuration.
SuSE still uses kde by default, which is fine. The default desktop
is pretty and functional, and not too slow. I'll be
switching to something lighter weight, like icewm or openbox, but
SuSE's default looks fine for a first-time user.
I hit a small hitch in specifying a password: it has a limited set
of characters it will accept, so several of the passwords I wanted
to use were not acceptable. Finally I gave up and used a simple
string, figuring I'd change it later, and then it whined about it
being all lower case. Why not just accept the full character set,
then? (At least full printable ascii.)
Another minor hitch involved the default mirror (LA) being down when it
got to the update stage. Another SuSE user told me that mirror is
always down. Choosing another mirror solved that problem.
Oh, and the printer? Flawless. The installer auto-detected it
and configured it to use gimp-print drivers.
(from gimp-print) worked fine in a full "test page with photo",
and subsequent prints (via kprinter) from Open Office also worked.
Good job, SuSE!
The experience with Ubuntu Warty wasn't quite so positive.
The installer is a near-standard Debian installer, with the usual
awkward curses UI (I have nothing against curses UIs; it's the
debian installer UI specifically which I find hard to use, since
it does none of the "move the focus to where you need to be next"
that modern UI design calls for, and there's a lot of "Arrow down
over empty space that couldn't possibly be selectable" or "Arrow
down to somewhere where you can hit tab to change the button so you
can hit return". It's reminiscent of DOS text editors from the
early eighties.
But okay, that's not Ubuntu's fault -- they got that from Debian.
The first step in the install, of course, is partitioning.
My disk was already partitioned, so I just needed to select / to
be formatted, /boot to be re-used (since it's being shared with the
other distros on this machine), and swap. Seemed easy, it accepted
my choices, made a reiserfs filesystem on my chosen root partition
-- then spit out a parted error screen telling me that due to an
inconsistent ext2 filesystem, it was unable to resize the /boot
partition.
Attempting to resize an existing partition without confirming it
is not cool. Fortunately, parted, for whatever reason,
decided it couldn't resize, and after a few confirmation screens
I persuaded it to continue with the install without changing /boot.
The rest of the install went smoothly, including software update
from the net, and I found myself in a nice looking gnome screen
(with, unfortunately the usual proliferation of taskbars gnome
uses as a default).
Of course, the first thing I wanted to try was the printer.
I poked through various menus (several semi-redundant sets) and
eventually found one for printer configuration. Auto-detect didn't
detect my printer (apparently it can't detect over the parallel
port like SuSE can) so I specified Parallel Port 1 (via an option
menu that still has the gtk bug where the top half of the menu is
just blank space), selected epson, and looked ... and discovered
that they don't have any driver at all for the Photo 700. I tried
the Photo 720 driver, which printed a mangled test page, and the
generic Epson Photo driver, which printed nothing at all. So I
checked Ubuntu's
Bugzilla, where I found a bug
filed requesting a driver for
the Epson C80 (one of the most popular printers in the linux
community, as far as I can tell). Looks like Ubuntu just doesn't
include any of the gimp-print drivers right now; I signed up
for a bugzilla account and added a comment about the Photo 700,
and filed one about the partitioning error while I was there,
which was quickly duped to a more general bug about
parted and ext2 partitions.
I don't mean to sound down on Ubuntu. It's a nice looking
distro, it's still in beta and hasn't yet had an official release,
and my printer is rather old (though quite well supported by
most non-debian distros). I'm looking forward to seeing more.
But for the time being, imbrium's going to be a SuSE machine.
Tags: linux, ubuntu, suse
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19:15 Oct 13, 2004
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Mon, 11 Oct 2004
For the past week, the mockingbird and the hummingbirds have
suddenly begun singing again -- the mocker only in the morning,
the hummer sporadically all day. October seems like a strange time
to be singing. I wonder if it's related to the decision whether to
migrate? Both Anna's hummers and mockingbirds are inconsistent
about whether to winter here or migrate south: some years they stay,
some years they go.
Tags: nature, birds, urban wildlife
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14:23 Oct 11, 2004
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Sun, 10 Oct 2004
It turns out that the problem with pho windows not resizing in
metacity is this: when metacity sees a window that's slightly larger
(in either dimension) than the screen size, it unilaterally makes
that window maximized, and thereafter refuses any request from the
app to resize the window smaller.
Mandatory maximize might actually be useful in some circumstances
(anyone who's ever tried to run on an 800x600 laptop has doubtless
seen dialogs which don't fit on the screen) but the subsequent
refusal to resize makes little sense, and causes bustage in programs
which work fine under other window managers.
A workaround is for pho to unmaximize before any window resize.
This would be a bummer with an app where the user might click the
maximize button manually; with pho, that's unlikely (I hope) because
anyone who wants to run maximized is better off running in
fullscreen/presentation mode (which now finally sets its background to
black, hooray).
Get'cher Pho
0.9.5-pre3 here.
Tags: programming
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19:21 Oct 10, 2004
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Fri, 08 Oct 2004
Unable to find any law stating the paper ballot requirement, I
called the Sec. of State's office back, this time being forwarded
to someone named Michael.
He told me that the requirement specified in the decertification
action was a "directive by the secretary of state", not a
legislative action" and so was not reflected in the election code.
However, the requirement is stated in the Voter Information Guide.
I do not seem to have received my VIG, but it's available in PDF
form (168 pages) on the
Voter
Information Guide page off the Sec. of State site.
It's on page 167: "Counties using touchscreen/DRE systems are
required to have paper ballots available upon request."
So there it finally is, in writing. Whew!
I strongly advise all California voters to ask for this option
at their polling place on November 2.
Tags: politics, election04, elections, voting
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14:41 Oct 08, 2004
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]
Our story so far: the nice lady at the Secretary of State's office
pointed me to the PDF for Shelley's Diebold decertification as the
proof that the upcoming election will allow voters to request a
paper ballot. That PDF says that it modifies
Division 19, Chapter 1
(commencing with Section 19001) of the Elections Code and Government
Code section 12172.5. My goal is to make sure that this hasn't
been superceded by subsequent recertification or other lobbying.
First I tried
Leginfo, searching
the Government and Elections codes for various combinations of the
words paper ballot option election machine
That gives lots of
links (which I need to explore) which don't include 12172.5.
Searches on leginfo, I notice, always return exactly 20 results
(two pages of ten), no matter what you search for.
Somehow this doesn't give me a feeling of confidence.
To get directly to a numbered law, leave the search field blank
to go to the table of contents for Government
or Elections.
Then wait a while.
It turns out that Government Section
12159-12179.1has nothing to do
with voting procedures or technology, and doesn't have a .5. Hmm.
Well, let's try 19001 and see if it's related. Oops, the table of
contents skips from 18993 to 19050 (which is something to do with
making General Appointments, anyway).
The Election code, on the other hand, skips from
12113 to 12200, missing 12172.
The 19000s of the election code do, finally, seem to relate to the
issue of technology used in polling. But nowhere in the 19000s can
I find any mention of paper ballots.
A google search of "paper ballot" option on site
leginfo-ca-gov returns no hits.
Is leginfo behind? Or was the lady at Shelley's office wrong about
that provision still being current?
Tags: politics, election04, elections, voting
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13:09 Oct 08, 2004
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]
I've been waiting for months for the papers, or Wired, or someone,
to give us the definitive word on California's proposed paper ballot
option.
Back when Secretary of State Kevin Shelley moved to decertify some
of the Diebold voting machines, he included a provision that voters
who wish a paper trail may request a paper ballot in counties which
use touchscreen voting machines.
But since then, many things have changed, many of the decertified
machines have been recertified, and none of the news articles
ever mentions the paper ballot option. I've been keeping an eye
on the CA
Elections and Voter Info site for some time, looking for help
or information, but time is getting short to request an absentee
ballot, so I mounted a search.
The Elections and Voter Info site has a FAQ -- they only link to the
FAQ about voter registration, but that same page has answers about
other topics as well, including voting systems. But no mention
whatsoever about paper ballots.
The elections page also links to another site run by the Sec. of
State, MyVoteCounts.org,
which has lots of interesting information on things like Diebold
decertification and recertification, but still no info on the
paper ballot rule (or lack thereof).
Going back to the elections page, I called toll-free phone number
for voter info, and spent a few minutes navigating a phone tree,
which didn't include any options which seemed relevant; determinedly
pressing the numbers for "other requests" eventually ended up in
something that wanted to request info from me (for what? I wasn't
clear) rather than let me ask questions of a human.
I hung up, and tried the Sample Ballot I received in the mail a few
days ago. It has instructions for voting both on touchscreen and on
paper, but no assurance that the paper ballot is actually an option
for anyone receiving the sample ballot. The only phone number I
could find anywhere in the sample ballot was one for requesting
ballots in other languages.
Going back to the Secretary of State's web site, I found the phone
number for the Sec. of State's office in Sacramento, and called
long-distance. Navigating another phone tree (oddly, "Elections
Division" is not in the first list of options; you have to
choose "Other" which takes you to a menu which includes elections)
and ended up speaking with a friendly and helpful woman there.
She assured me that yes, all voters in California would have the
option of requesting a paper ballot at the polling place, and she
offered to find it on the web site for me.
Several minutes of searching ensued. She initially thought it would
be on the Voter's
Bill of Rights linked off MyVoteCounts.org. This turns out to
be a PDF of a big-type poster, which, alas, says nothing about paper
ballots.
She put me on hold briefly while she went searching, came back, and
tried to remember the click-through route she'd taken so I could
find it too. We followed several false leads, but finally got
there: start at the Elections &
Voter Information page, scroll way down to Voting
Systems (under "General Information"), then click on
Decertification
and Conditional Certification for certain DREs
to get the 9-page PDF of Shelley's original decertification of
the Diebold machines, which, on page 4 item 4.b.1, specifies that
every polling place must either (a) have a voting machine offering a
"fully tested, federally qualified and state certified accessible,
voter verified paper, audit trail" or (b) (1) Permit every voter to
have the option at his or her polling place of casting a ballot on a
paper ballot which may be satisfied by providing an adequate number
of paper ballots to each polling place based on each County's
assessment of the number of persons who may request them. The cost
of additional paper ballots specified in this paragraph shall be
borne by the vendor of the voting sytem that sought its
certification or approval for use in California, or the vendor's
successor in interest".
(Incidentally, this PDF is simply a scan of the successive pages of
the document; there's no searchable text here, so google wouldn't
help unless it had OCR capability.)
The woman at the Sec. of State's election division assured me that
this was still in effect and had not been outdated by the more
recent recertifications, and that it applied to every voting
district (presumably there's no currently certified voting machine
which meets clause 4.a?)
The status of this document (see page 3) is that it amends Division
19, Chapter 1 (commencing with Section 19001) of the Elections Code
and Government Code section 12172.5. So that's the place to go
to make sure this is still current. More on that later.
At the end of our conversation, I mentioned that this info was a bit
difficult to get to, and maybe a clear FAQ entry, somewhere in the
html of the site, might be in order. She agreed. Perhaps someone
will update the web site before the election.
Tags: politics, election04, elections, voting
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12:43 Oct 08, 2004
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Thu, 07 Oct 2004
Linux Magazine has a good article by Jonathan A. Zdziarski on
Linux on
the laptop: Ten power tools for the mobile Linux user.
He gives hints such as what services to turn off for better power
management, and how to configure apmd to turn off those services
automatically; finding modules to drive various types of wireless
internet cards; various ways of minimizing disk activity;
and even making data calls with a mobile phone.
Lots of good information in there!
Tags: linux, laptop
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20:51 Oct 07, 2004
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Fri, 01 Oct 2004
I'd been meaning for ages to write a PHP version of my showpix.cgi
Perl script, to show images without needing a separate .html file
generated for each image. I finally did it this morning, and it
was much easier than I expected, and seems to run a lot faster
than the perl CGI (not surprising, since PHP is cached in our
web server and perl isn't; so this should be more scaleable
and less load on the server).
The hardest part was writing the Python script to generate a new
showpix.php for a directory of images, and that only because of
all the escaping of quotes that needed to be done when telling
python to print a line that tells php to print a line to serve
up over http ...
Anyway, I've converted the Flume Trail
images to use the new PHP stuff, and I've updated the page for
the Imagebatch
scripts to include PHP ability.
Tags: programming
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15:40 Oct 01, 2004
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Latest accessibility gaffe:
The web site for the Democratic
Party is totally screwed up if your fonts are even one step
larger than the default. Try it! (ctrl-+ in mozilla.)
I wonder if it ever occurred to them that many of those precious
Florida voters are older, and need to use large fonts?
I sent them a note, with screenshots of the top of the site
and some unreadable text
farther down.
I wonder if the Republican site is any better? I'm not sure where
it is, and oddly, googling for "republican party" doesn't get
anything that looks like an official nationwide site on the first
page.
Tags: politics
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11:38 Oct 01, 2004
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]