christine arrives!

sans baggage, though.

col e de porte

We all went to col de porte for sledding today. Zoe was too tired to sled at first, but was not too tired for hot chocolate (through a straw).

zoe and the push trike

yay for chloe!

I went SNOWBOARDING today for a half day thanks to chloe's extreme generosity and awesomeness. lots of powder and not too many people. My legs actually felt decent after their four year snowboardingatrophy, except when the chairlift whacked them.

happy xmas!

We drove up to Chambery to wander around in the old town with the two mini-mes and an american guy from work who is doing an internship for the year. It was a little cold, but I love that town. Now, if only the synchrotron could be moved up there.

Also, I found my sharpening stones and started sharpening my kitchen knives. Next step: utility knives and Franck's knives!

beer

Budweiser costs almost $2.50 a bottle here! Thank goodness it's so bad that I wouldn't even consider it at that price for a six pack

unimog!

This is what you need for the true offroad experience


Of course, if you're going far, you probably want the half million dollar RV version

zoe sledding

very jealous.. am home sick and the oe's are out sledding!



also, the town of Le Fontanil was offering horse drawn cart rides and Santa time!





but Zoe was terrified of Pere Noel.

this is all second hand because I was too sick to leave the house.

Snowing!

and some local franco-chavs were pelting our windows with snowballs in the middle of the night. Why?

Lyon

This morning we went to the dermatologist to figure out what is wrong with Alex's face. The hypothesis is that it is a reaction to some mom-hormones which subsequently got infected. We now have corticosteroid creme, super fancy moisturizer and antibiotics for him. Even without the treatment, things are already looking better, much to our relief. It's so hard being vaguely repulsed by the way your son looks! Not to mention the guilt.

Anyway, last week we had arranged to go to the US consulate in Lyon to apply for a US birth certificate, passport and SSN for him, so we drove into Lyon without any major hijinx thanks to the marvels of GPS technology. Finding parking was a bit difficult, but with a little help from Chloe, I got into this ridiculous spot without even hitting the cars in front or in back of me!

skills!

The US consulate is in a nice building right on the quay, with big windows looking out over ... other buildings. We had an appointment at 11:00, but got stuck behind a scumbag businessman and his wife who were going on and on about the number of pages in the passport book, how they reside in Dubai but have property in France and the US, blah blah blah. Once they were dispatched, the embassy staff were quite efficient and we were out the door in no time. They even gave us a recommendation for a restaurant for lunch: La Manille. We walked there and were greeted by cooing (the yucky part of Alex's face was hidden under his snugglesuit) of the Maitre d', which always puts us in a good mood. We ate upstairs, and everything was wonderful. Chloe had some kind of fish special, but I was too engrossed in my perfectly cooked steak to pay much attention to it. Since Alex was being so good and sleeping the entire time, we even got dessert! I had a tarte au citron and chloe had a chocolate cake with creme anglais, with two espressos. Also, halfway through the meal we saw the security guard from the embassy, who clearly poached the resto recommendation from the attachee who gave us the name.




Driving back in the snow was a little sketchy.

bourgogne + jura + comte wine tasting

Franck invited me to a wine tasting at Alp'Expo today. It was wines of the Jura and Bourgogne, so how could I say no?

I brought Zoe with me to indoctrinate her on the joys of wine early, and it turned out to suit her just fine, since there was an impressive display of different Comtes:





which Zoe enjoyed thoroughly "TWO CHEESE!" (one for each hand). We tasted several Comte's, and all were quite amazing. I think that the chances of experiencing Comte like this outside of Europe are probably pretty small, even with Fedex Cheese via fromages.com. After all, some of these cheeses were of very limited availability even in france. I settled on the valempouliere from april 08, with the charles arnaud extra indeuillers a close second. All of them were fantastic though.


Next, I gave Franck a few expert tips on wine tasting:

(obviously it was the other way around)
We tasted many expensive wines, and the perfect pairing of Comte and Vin Jaune. Thankfully, the pours were not super deep, or I would not have been able to drive home. As it was, I had to wait a little while before leaving. Zoe was very happy throughout the experience, throwing the stopper to her apple sauce packets and making me sheepishly chase them down. The whole experience was great: Francks friends bought a big chunk of Comte and some bread, which we all indulged in as we tasted wines and talked. There seemed to be at least three categories of people in attendance: The first were the wine lovers who were there to enjoy the opportunity to try the best of the Bourgogne and Jura and maybe bring home a few bottles. The second were the get-down-to business people who arrived with large empty dollies and left quickly with large full dollies. The last seemed to be the frugal drinkers in search of a cheap and convenient buzz. To their credit, the younger ones did an admirable job pretending that they were enjoying the taste. The last category was not restricted to underage drinkers, however. The older drinkers were throwing the wine back with less pretense though. I saw one guy actually tipping his head horizontal to get the last drops out before immediately demanding more (no pause to reflect on the taste!).

damn it!

Zoe found a highlighter and decided to ink around her eyes

Zoe scores a bunny balloon

mon saint martin

We walked up to le mont saint martin today. I REALLY need to get a new baby backpack soon, I think. My hips are crushed!

Retraite aux Flambeaux

After an exciting shopping trip to Carrefour and the laundry (where I paid 15 euros to wash our sheets!) followed by doing very little of anything, we bundled the little ones to attend the Retraite aux flambeaux. We didn't really know what to expect, having hear only that the lights in the village would be turned off, and the kids would be carrying lights. When we got to the appointed place, they were handing out sword like devices to the bigger children and adults and lanterns on rods with glow sticks to the little ones.

Rave time!! Actually, we milled around until darkness fell at which point they led a goat out, which was towing a bathtub with a sound system, trailed by two dancers. Yes, it was getting a little weird! Shortly before the sound system was started, we discovered that the swords were actually torches, and everyone began lighting them. The little kids had their light sticks snapped for them by their parents.

After torches were ignited, we all walked up to the church. It was pretty cool, and the whole time I was marveling at our adoptive country, and how different it is from the US. I just can't see a town sponsored event happening in the states that involves giving flaming sword-torches to kids (or even adults) and marching through a village! It would be a lawyers dream, I'm sure. Even the very young kids were amazingly well behaved with their torches -- treating them with respect and care, and even watching out for the younger kids. I have a feeling that in most places in the states, it would have rapidly devolved into flaming sword fights and trips to the hospital. Here is the walk up to the town hall:





There were lots of flares lit too, so there was a haze of smoke, which gave the event a pretty haunted feel to it.







Zoe loved all of it, of course, and did an admirable amount of walking and torch avoiding. She didn't want to carry a lantern, but LOVED the light sticks. She actually went to sleep with them later that night because of her unwillingness to part with them.

megalight affirmation

coming home tonight in the dark, I passed some guy with a pitiful wheel powered light. As I passed, I heard him shift to try to keep up, and pretty soon it was clear that I was being pursued, so I slowed down. The guy came up along side, asked what kind of light I had, and then proclaimed that it was fantastique, and gave me his congratulations at having made it -- nice!!!

alex defying gender stereotyped colors

Alex update

he's a little fatty!
5.55 kg (12.2 lbs) ~80th percentile
56 cm tall (22 inches) ~50th percentile
39 cm head size (15.3 inches)

beautiful light on the mountains

this morning. Time to start bringing the fuji on my bike? All the major peaks visible from Grenoble are dusted with snow.

Megalamp, the return

The project: Megalamp Mark III scuderia Sti. After my experience with the mark II: specifically lots of light, but the occasional piece falling off, I decided to make a new light. The idea was to make a water resistant, durable Lithium driven light that would use the excellent TaskLed Hipflex driver. Oh yeah, and while I was at it, I wanted something a lot brighter -- why not, right? So: machined Al housing, 14.8 V lithium pack, triple Cree MC-E, Reflector optics. I had been thinking about this for a while, but my bike commute on an unlit bike lane brought it back to the forefront.


housing: A very generous machinist made the housing out of Aluminum based on my specifications. I mocked up a model in Sketchup, but he went a step further and took my measurements and put it into SolidWorks and cranked the thing out.


Next, someone suggested anodizing, which I did:




optics: The choices for small optics for the MC-E that work well are a bit limited, but the Ledil Booms seemed like a reasonable choice. I haven't used reflector based optics because I didn't want to deal with a protective covering, but my lab contact generously made me a polycarbonate lens, so why not?!


output: Here are the Cree numbers for the MC-E for K bin: 370-430 lumens at 350 mA. Looking at their graph, it looks like you can get up to ~173% of the 350 mA light at 700 mA. IF you could run three MC-Es at 700 mA (like running 12 individual LEDs at this current), you would be making ~1920-2230 lumens! I plan on running at 350 mA to preserve battery and not damage things, so I can expect a paltry 1110-1290 lumens. This is ignoring optics, efficiency of the driver etc, so take it with a big grain of salt. Even with the salt, though, it's very bright, and when you consider the price of the parts (excluding the fancy case), it works out to be quite cehap compared to the 900 lumen $700 lights on the market.

Here are theoretical values, assuming 370-430 lumens for the K bin:

mA watts lumens
1000 9.3 833-976
1400 13.4 1110-1290
2000 20.4 1499-1742
2400 24.5 1721-2000
2800 29.4 1920-2231

not sure about the watt values, since I didn't take much time in my reading of Vfs off of the Cree datasheet. In normal operation I will be dimmed quite a bit, I think. I'll try 1400 mA to start with.


Temperature: At 50 degrees C, you lose ~ 6-7 % intensity, 75 degrees, 12-13%, 100 degrees, 18 %, so here's hoping all that Al dissipates the heat. Thankfully there is a temperature sensor built into the Hipflex. The other concern is decreased lifetime of the LEDs.

weight: 215 grams for the light + wire
247 grams for the battery + wire + case = lighter than the seca 900 by a lot.

Guiers

After spending the morning at the farmers market, stocking up on Olives, dried figs, Comte, Tomme, quince, apples, oranges , bread and other staples,

we went for a hike to the source of the Guiers in the Chartreuse. The damn "baby" backpack is really starting to do bad things to my shoulder and hips; although we are far from the official weight limit, I think that we might have hi the practical weight limit carrying Zoe (28 lbs). In any case, it was kind of a grind but led us to a very cool cave:

biking with Zoe

Today Zoe and I went to the famous super high end sports store called InterSport to look for bike seats. I had seen a lot of the Hamax style seats around and wanted to have a closer look. They have a convenient quick release mounted on the seat tube and after a little poking and prodding, we bought one with a five point race car style harness (I'm grooming her for a future in the World Rally Championship). I took a quick test ride

around the block with her and discovered that my long neglected mountain bike now had its front brake permanently engaged, which added to the effort required in getting us up even small hills.

After tuning up the bike, Zoe and I went for a much longer ride: up past the climbing site, then down to the bike path. We biked along the path, and I took secret delight in passing guys on racing bikes. Soon enough, however, I came across a long section of the path where large chunks were missing, which meant dropping 4-5 inches onto gravel and then back up the other side. It looked like they were removing roots or something, but it was pretty annoying. After about eight miles, I stopped, asked Zoe how she was, to which she responded "BREAD! CHEESE!", so I turned around. It was kind of a cold ride back.

21.5 miles -- pas mal!

What's this?

Is this a raw potato with the tooth marks of a two year old on it?  Why yes!  Yes it is!  Zoe managed to find the potato, bring it to us while saying "Tato?".  We didn't notice that she had tried to take a bite out of it until later.

Bouldering Peuil with vero, lolo and thomas

thinking of our friends in Toronto and hoping things are getting better

anodizing

I anodized the Al housing for the new light this week.  For some reason I found it difficult to find any concrete numbers on the various parameters involved, so here is what I learned:

try to use constant current instead of constant voltage (i.e. do not connect to a car battery).  When I monitored the current starting at the generally recommended 12V, it was in the 6 amp range for my part and rapidly trailed off.  Since the process that is occurring is the creation of an Al2O3 layer which is etched by the sulfuric acid (which creates pores into which dye can diffuse), the balance between acid strength and current is critical.  My part had ~ 160 dm^2 and I was shooting for 2 amps in ~10% Sulfuric acid.  Therefore, a massive peak current of 6A which trails to nothing probably does not deposi a very even layer of anodization.  The other thing I discovered is that it is best to use a new Al electrode every time, and make sure it is connected very well to your part.  I had two test runs where the current dropped to 0, and I assumed it was because the oxide layer was so thick that there was no more conductance.  I now think that it was simply the reused Al wire getting oxidized to the point where it could not contact the part any longer.  I cleaned the wire in NaOH every time, but that is probably not enough.

Notable things seen on the AM commute: an Electricte de France Unimog, probably off to do some repairs in the mountains, a recumbent bike with a fluorescent windsock, a traffic light on a freeway offramp about to cause a major pileup.

our little pointillist!

bouldering at Peuil

with Vero and Thomas.

Limestone bouldering!




deluxe baby accommodations:


and bouldering potential for the height challenged:





It's a beautiful time of year to be up there. The whole forest is covered in a thick carpet of brown alder (?) leaves, and you can see the giant cliffs that flank the Vercors in the background.