Saturday, March 29, 2008

...and the weekend of the lions (coming soon)

Coming soon: a weekend in Ankara with Lion sculpture on both days. Can you tell where it is yet?


Anatolian hands

Tuesday, March 11, 2008

...and the beginning of lent

So, the beginning of lent is a strange time. It sits in between Lent and the Carnival straddling as it does the time of plenty with all its bacchic dionysiac hang-overs and the austere and Christian fast which brings us to the greatest holiday in the calendar: Easter.

The dome of the Omorphoklisia church with kite in the background.

It is usual practice for the municipality to provide the "Koulouma" (a word derived from the latin cumulus), the surplus of whatever is left that has to be done with for Lent. It's common for the municipalities to provide food suitable for fasting in open spaces where kites may be flown, for that is our custom.



We decided to visit Veikou Park, belonging to the municipality of Galatsi (a suburb of Athens built by refugees from and named for the Romanian Town of Galaţi), not least because the park is close to a 13th Century church which I have read about and want to visit, but have not had the chance to do so. The view from a distance was brightened up by the large number of kites in the sky all with their happily streaming tails. We parked about a mile from the church and walked up to it, then crossed opposite towards the park where there was all sorts of crazy stuff going on, things being bought and sold and people thronging and whatnot.

We bought our kite from a Roma at the entrance - a fancy schmancy affair in the shape of a bird, with a 3D body. The seller set it up for us leaving me to carry around this huge bird with more than 1m wingspan complete with bits of wooden rod sticking out (I would have had someone's eye out on one of them, but I was being careful).

On our way up the hill, we passed many of the people who are by their presence and nature helping to increase the cultural diversity of Athens. Extended families were sitting and picnicking, some with their women in headscarves, some with their women in saris most with meat on their plates thereby indicating their "otherness". It was quite exciting to be here at the beginning of the breaking of the homogeneity of the Athenian cultural make-up and it was interesting to see the Albanian balloon seller trying to persuade the Kurdish family to buy a balloon for their little girls.


We flew the kite - it soared and took us to the limit of our line - we wanted to have had more line and more time. For all my previous attempts to get kites in the air - this is the first time I can comfortably say that I have flown a kite properly. And I am hooked!

Now it is time to start preparing the messenger and the parafauna for next time!




Wednesday, March 05, 2008

Oregon Scientifc helmet cams: ATC1000 and ATC2K compared

Once upon a time, what seems now like a long time ago, but isn't, I read about the Oregon Scientific helmet cam on the NSS caving forum. One of the gear-heads mentioned the ATC1000 which was just out at the time and I bought one and played around with it.

About six months later I bought the upgrade model ATC2K. So, seeing as I had promised this to the guys over at forums.caves.org, time for my side by side comparison, here goes:

ATC1000 on the left, with AAA cell, right the ATC2K with AA cell

The ATC2K improves on many of the ATC1000's "problems" for caving. For me, these are waterproofness of casing / behaviour in low light / battery issues / mount. We'll go over these one by one.


The first is the more rugged and more waterproof casing. A side by side comparison of the two cameras shows that the older model is far longer than the recent one, but thinner and more cylindrical.

The ATC1000 is rated only splashproof (although mine has survived a brief total dunking) whereas the ATC2K is rated as being waterproof to 3m. The ATC2K also has a shadow guard (peaked front) for reducing flare and has a more rubbery feel than the ATC1000s very plastic look. Both have received their fair share of knocks and scrapes while attached to my helmet, without any problems or malfunctioning. After about 8 months of use (and this is connected to the mount also) the front end of my ATC1000 came off, making it no longer splashproof. I have submerged my ATC2K to about 4 or 5m without problems.

Behaviour in low light, next. The ATC2K is very much better at acquiring an image is low light. I don't know whether this is a CMOS issue, or a result of different hardwired software in the camera. The ATC1000 shoots at 15fps and gives a very smooth image with many tonal ranges. The ATC2K shoots at 30fps and gives a more contrasty (sometimes blocky) image. Whether the trick to achieve the increase in fps also necessitates loss of image quality I am not qualified to say. How this links in to the fact that the ATC2K will give a better balanced image in low light I also don't know. For someone who has not seen the image quality of the ATC1000, the quality of the ATC2K is not noticeably bad. The fact that it will capture an image, when the ATC1000 will not is what is important to me.



Comparison in low light and external conditions



Comparison in street conditions



Comparison in cave conditions


Battery issues: size and lifetime! The ATC1000 takes four AAA cells. The amount of recording I could get out of new alkalines varied from about 45 minutes to 75 minutes depending on the subject and the amount of time the camera was on standby. The lifetime of some otherwise pretty good Ni-MH batteries was not so good, ranging from 30 minutes to no more than 60 minutes. The cost of new batteries per hour recording or the inconvenience of carrying many spares was unsatisfactory. Further, it is almost impossible to change batteries without a pen or a safety pin to release the latch, especially when wearing gloves. The ATC2K takes two AA cells, much cheaper and much easier to find. The battery life was close to two hours for alkalines or well over one hour for Ni-MH rechargeables, meaning that you have to open the back more frequently to change memory card than to change batteries. So with the ATC2K you get many more hours recording for the buck. Another thing is that the battery indicator comes on when you have about 10 or 15 minutes of recording time left, giving plenty of warning. On the ATC1000, it would often come on immediately before the camera died. I am curious what the TFT screen on the back of the ATC5K is going to do to battery life.


Mount issues: The ATC1000 did not have a satisfactory system for mounting the camera on a helmet - the system required leaving the clasp in place on the helmet and sliding the camera in and out, something which may have sped up the detachment of the front cover of the camera. After a few uses like this, I decided on using inner tube rings to keep the camera attached to the helmet, something which worked well enough as long as I jammed a toothpick in there as well to keep the axis parallel to my line of sight. The mount for the ATC2K is much more handy, having a clippy system allowing you to detach the whole camera from the female mount with ease. I have the female part permanently fixed to my helmet and clip the camera into it whenever I want to. It sticks out from the helmet quite a distance but this is easy to get used to. As I wanted to be able to alternate place of mounting between helmet and elsewhere, without having to take off the helmet so as to undo the strap, I wrote to Oregon's customer support about getting more female clippy parts, but I received no response.

Some words about Oregon's customer service: there ain't none. You buy the camera, and that's it. If you want to contact them by e-mail, they'll never answer you. I have sent repeated mails to Oregon about various questions and none have been answered. I once sat in an automated telephone queue for 40 minutes never getting through to the support staff. Oregon are crap - if you buy something, from that moment on you have to come to terms with the fact that you are on your own. This is not the sort of customer services I have come to expect from across the lake. People interested in the ATC3K and ATC5K coming soon, should keep this in mind.


One more thing - after about 11 months of use, my ATC2K developed a patch of dead pixels or something, which was not on the exterior of the camera but which created a dead spot a few pixels in diameter. I have tried to reach Oregon about this as well, but with no joy.

Monday, March 03, 2008

...and the alcohol induced blackout

So, I have spent part of this morning, still nursing a dodgy stomach and a slightly groggy head, reading such gems as: "subjects are capable of participating even in salient, emotionally charged events-as well as more mundane events-that they later cannot remember" and "far from losing consciousness, the literature suggests that it is possible for individuals to experience blackouts while appearing only moderately intoxicated to the outside world". Tell me about it.

The last time this happened was back in the mid nineties, at that famous boatie dinner where they served a carrot soup for starters and then no one (apart from RVM) remembers anything at all. It is not good waking up and not knowing how you got home, how you got those bruises, what you did and what you said. Especially if the last time this happened, you were told that you had kicked a fellow from the vet school in the face (hi, Rachel).

So, I figured out for myself that some time between 3:18 and 3:24, I blacked out. I have photographs I recall at 3:18 and photographs I appear in but do not remember being taken from 3:24 onwards. On one level, it feels like I had a chance to get things out off my chest, that lack of alcohol would have inhibited. On another, it is scary to think that my own memories of everything I have been told that I said and did are gone forever and cannot come back.

Apparently, when the blood alcohol content hits an upper limit the capability of the brain to form long term memories fails, because the alcohol interferes with the transfer of messages from the short term to the long term memory. It's like its being relayed to a tapedeck with no tape in there.

It is all just a blank and this is scary. When the guards are down, we open the way to the monsters from the Id to come rampaging through to the real world. It seems they did to some extent.

Well, I remain groggy and confused. While my first two blackouts were five years apart, the second and third were more than ten years apart. I hope the next one will be so far in the future that it won't happen.

Woo!

Friday, February 08, 2008

... and the tale of the broken thermometer

So, K's been 'fluey for about ten days now, probably due to more than one cold or 'flu bug. I have managed to remain uninfected so far, which is just as well, as I have not had a jab for two years.

I received a text message one evening - "I have broken the thermometer"

Great - there's me thinking that the house will be flooded with hyper poisonous mercury fumes and what-not. In the event, there were no fumes and no little silvery liquid blobs zooming around my floor like the T-1000. There was however a small bubble of mercury rolling up and down the plastic case in which the broken thermometer was sitting.

No probs, I think, I'll take it to the chemists next door and ask them to dispose of the thing safely and I'll buy a new electronic thermometer while I am there.

Hello, I say to the nice chemist as I walk in, I'd like to buy a thermometer and to leave you this broken one so you can dispose of it with your other hazardous waste.

- Blank stares.

There is no provision for disposing of mercury thermometers safely, I am told.

So it all goes to the landfill?

- Nods

And the baby seals? I ask pleadingly…

- Shakes.

So it seems that there is nothing to be done but let the broken thermometer go the landfill, potentially be played with by the gipsy children, end up in the ground water and the food chain in general, and finish up in the baby seals or worse still in the cute fluffy polar bear cubs.

I resolved at that point to write to the municipality, something I have not yet done, but, believe me, I will do it. Apparently, there is no provision for safe disposal of medicinal sharps, either.

I love living in the Alabama of the European Union.

Wednesday, December 26, 2007

Paris day 1

So I am feeding the addiction to the online world even on my holidays. This is a French keyboard, and of course the French have to be different and have to have some of the keys in slightly diffreent places. Please excuse any stray wierd letters that may creep in.

Today we started from the base near the Place Gambetta and went into the centre of town to the Sainte Chapelle chapel, advertised as a rather fine bit of Gothic architecture in the centre of town, and surrounded by the buildings which replaced the halls in which Julian the Apostate once ruled. Other parts of the itinerary included the St. Severin, St. Julien, Museum of the Middle Ages and more.

I will have time to write more some other day, with photos. Kiddy bedtime dictates I now shut down.

Tuesday, December 18, 2007

Cephalothorax agogo!

While making the kiln, I took some photos of the three little visitors who had come to watch me build my kiln. I have never seen any these little guys in life before (I have seen many dead ones) so this was quite exciting.

Wood kiln II

The taking apart and rebuilding went to plan. I now had a kiln proportioned correctly on the length and width axis. The height axis was causing me problems, as using the two different types of brick made it very difficult to ensure that I had the correct ratio of firebox to chamber. Even so, at some point in the building I decided against the side opening for loading and unloading of the kiln for a number of reasons. The main reason was the odd proportions of the firebricks I am using, meaning that I had to lay two courses for each one in the plan to make the overall ratios of length to width to height fit. To avoid brining in weaknesses to the structure, I decided against exact doubling up of the bricks keeping the half-step building style going. The photos show the mock-up from the first day's efforts - to give an idea of the problem (four "half" bricks needed in the alternating layers).

I decided to do away with the side hole and make all the packing and unpacking from the top, which I would seal over with clay before the firing starts. Seeing as I had a number of firebricks left over I also increased the height of the chamber by one or two rows. Other than this, the kiln is built on the basic plan as given at sidestoke.

In this image the proportions are visible. I have replaced the normal bricks with firebricks for the grate to give a bit more room for the stoking process. I also like the idea of the sideways bricks in course 3. They should give a nice amount of air to the firebox - so it is not all bad that I did not have firebricks for the whole kiln.

My proportions are:
ashpit and firebox two courses high: 16cm each.
chamber is 9 courses high: 36cm

The chamber to firebox to ash-pit ratio in my kiln is therefore 9:4:4
The original plans call for a ratio of: 4:2:2

I am wondering whether this will make a difference or whether I should move a course down below the kiln floor, to make for a bigger firebox and smaller chamber.

My chimney is also a few courses shorter than the plan. If people think that I should lengthen it (with a metal tube or something) I will do so. It is meant to be 8 courses (16 of the half bricks) and it is only 6 (12 half bricks).

Finally, I have this back view of the finished kiln.

Feel free to make comments.

Wednesday, December 12, 2007

Woodkiln I

I have written in the past about my attempts to fire home made crude pots in the garden of my mother's house in Paloumba. The time has come to finally make the woodkiln that I have been investigating and planning for the past seven or so years. I have signed up to the woodkiln list on yahoo and I have bought a few books on the subject. The plan is to follow as much as possible the plans for the simple kiln on the Rosser site (http://www.sidestoke.com) with modifications to take into account the fact that the bricks I have are not standard western house bricks (6:3:2) and are not all the same size. The other problem that I have is that not all the bricks I have are likely to stand up to any sort of thermal shock. The plan is to put these non-special bricks in the ashpit and the firebox, the reasoning being that the real heat will follow the airflow into the chamber and out of the chimney. The bricks I have are either standard fine-ware building bricks which are 18 x 8 x 6 and will probably collapse spectacularly when the fire is kindled and some proper firebricks which are 22 x 11 x 4 - a ratio of (6:3:1.09).

The plan was to modify the plan on the Rosser site, to take into account the two different brick sizes.

On the first day, I made a mock-up of the kiln proper - layers 6-14 out of firebricks, repeating layers 8, 9 and 10 to take into account the shorter brick height. This went very satisfactorily indeed and was a very big boost to morale in the planning process. One thing that came to light was the need for leveling the ground a little before starting the next day. Everything else looked good.

The next day we went shopping with a friend living in the village called Kalinikos who knows about bricks. Going down to the river which separates
Arcadia from Elis we bought a hundred of the standard bricks despite the protestations of the seller that they were wholly unsuitable for use in making an oven.

With the bricks in the back of the Panda, we returned home and put them in the garden ready for today's building effort.

Today, day three:

I cleared an area about the right size with the pick - to get all the grass and other plants up, then laid down a layer of the normal brick down to be my base. This layer was 10 brick widths long - to correspond to the 9 brickwidths of the firebrick which would be the length of the finished kiln. I did not take into consideration that 10 lengths of the short brick is shorter than 9 lengths of the firebrick. I then went on happily building row on row of the normal brick to make up the ashpit and firebox. I used the firebrick for the firebars just to keep some idea of the size of the firebrick superstructure in mind.

When the time came to put into place the first of the firebrick layers, the kiln floor - level 7 in the plan, I noticed the first major flaw in my work. I say major, because I don't consider the lack of horizontality in the brick courses to be such a large problem. As I was counting out the bricks to make my kiln floor, I got closer and closer to the edge, but there seemed to be no way to complete the placing of the bricks in the space I had set out. I had set out too few bricks in the lower courses and I was one half brick short of the planned kiln length.

Now, the plan is to take apart the front edge of the kiln, then flatten the ground in front of the kiln and relay bricks to allow the kiln to be made to the size in the original plan. This, for tomorrow, then.

Tuesday, November 06, 2007

Flight or sleep???

So a long time ago, I had written about the fight or flight mechanism, but here I am having gone through many cycles of fight and flight and profuse sweating and what have you and I am experiencing what I can only describe as a whole new reflex. I present to you: the flight or sleep reflex.

Oh yes - just when I should be fighting or fleeing, here I am, feeling that everything will become better if I take a nice little nap.

This is not the first time that I have had the flight or sleep reflex (which will no doubt travel the world as the "slap or sleep"). The only evolutionary explanation I can come up with for it is that by taking a nap in the presence of the predator, one may be able to persuade said predator that one is already dead and therefore not so good meal. A sort of possum response.

Of course, in the real world of today's interglacial holocene, taking a nap is often not the best way forward. But by god, do I wish I could.

Monday, November 05, 2007

Spasticity

So, here I am - physically and mentally, like, squeezed and I'm wondering, like, when is it that I have to stop pretending that it isn't and actually face up to the fact that my left thumb is going spastic on me, a little bit more every day, but definitely spastic?

There's a pretty question.

Thing is I have never had anything go spastic on me yet. So to acknowledge the thumb's spasticity is to acknowledge a whole new different symptom. And I'm not sure I want to do that before finishing off some work I am working on, and stuff. Got to look into it because I can't remember if spasticity is caused in the brain or in the spinal column (like the various exciting forms of paraesthesia I live with).

But I won't look it up because that would mean taking my head out of the sand.

Sunday, September 16, 2007

New stuff on you tube

Recent additions to the youtube area are a rather long winded tour around the church of ss sergius and bacchus (kuçuk aya sofya camii) set to Holst's Mercury:



an off beat tour around the back of the church to the cemetery, after hookah in the garden, set to jazzy drum beats:



a rather fine airplane film I am very pleased with, set to "one of these days":



the selection and purchasing of some roadside onions in Buzau county Romania:



and finally, a bunch of random fish swimming around near prassouda island in the pagasitic gulf:

Monday, September 03, 2007

After the fire came rain

Except of course it didn't rain, but just thundered a bit and flashed a whole lot.

Tuesday, August 28, 2007

Monday, August 27, 2007

Fires still burning

Ash is still raining down from Euboea onto our balcony.

The country is waking up to the realisation that the state cannot do anything about the fires, whereas perhaps the right realisation should be that we are very small opposite nature and of course we cannot do so much when she is putting on her red and orange ball-gown. But then, we 21st century humans are so quick to forget how small we are in front of nature.

Pity.

Sunday, August 26, 2007

It's on f*ing fire!!

So while most of the southern part of the country is burning on TV I have my sister, trapped for two days by the fires and my mother now told to abandon the village both running loose around the Peloponnese and no-one knows what the hell is going on.

White smoke means no fire, black smoke means there is burning. Apparently.

For two days we have had ash raining down on our balcony in Athens. The sun shines a different colour depending on how fine the smoke particles are as it passes through. It would be interesting to sit and observe this if one could separate the cause from the phenomenon in one's mind.

So many of these places I have walked through their forests in the past. Here is not the place and now is not the time to talk about proper forest management.

Tuesday, August 21, 2007




Cave of Zas - more on my caving blog

Saturday, August 11, 2007

Holiday, sorta




Trying to relax, but it is not so easy.

Monday, July 30, 2007

Annoyed - forgetful - rushed

yeah so in the four plus years I have been travelling with it, why now, in the middle of the scorchingest summer do I have to leave my autoject in Athens? Arsecandles!

Monday, July 23, 2007

First fruits

Very hot, man...



This year will be so much better than last, in this respect!