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pozorvlak: (Default)
Sunday, March 9th, 2008 01:07 pm
Its hailing outside. The forecast for the hills this weekend was -13C after windchill, and gusting winds of up to 50mph - we've been out in much worse, but there was also the danger of blizzards, which would have been a problem. Plus Philipp's away, and Michael and Jo are busy this weekend, so the walk would have been me and someone else less experienced. I'm not going walking on my own in a blizzard, and while Bart, say, is a sensible guy with his head firmly screwed on and a few walks under his belt, I really didn't feel like taking him out in those conditions1. So I'm sat here at home, failing to work on my thesis. Bah. My last hillwalk was two weeks ago now, and I'm starting to get the been-in-the-city-too-long shivers. Rock climbing's fun, but doesn't quite hit the same spot, particularly when it's indoors.

Going to the Adventure Film Festival yesterday didn't help, either...

[livejournal.com profile] firefliesinjune: I haven't forgotten about my promise to take you to the Highlands, but let's wait for the weather to improve, eh? :-)

1 Maybe I should have left that choice up to him, I dunno.
pozorvlak: (polar bear)
Tuesday, February 5th, 2008 11:34 am
Whew! The Scottish Juggling Convention is over. About 120 people turned up in the end, which I think is a record, and as far as I can tell everyone had a good time - the worst complaints I've had were that we left a couple of games out of the Juggling Olympics at the end. New records were set for 3-, 5- and 6-haggis juggling. The show was awesome, but I can't take any credit for that. Here's a wee video which some visiting press person took:

Scottish Juggling ConventionScottish Juggling Convention

That's [livejournal.com profile] azrelle, my co-organiser, being interviewed: I was far too busy for any of that malarkey ;-) The guy balancing the ring on his head is the stunningly brilliant Sean Blue. Arm curl while spinning three balls on his fingers? Why yes, yes he can.

More to come soon - I'd written out an HLCGB last night, but Firefox crashed taking all my carefully-crafted text with it :-(
pozorvlak: (Default)
Monday, December 17th, 2007 02:40 am
There is an obvious problem with trying to work late at night in a poorly-insulated house in Scotland in winter.
Tags:
pozorvlak: (polar bear)
Tuesday, October 9th, 2007 03:21 pm
I wrote this in a comment to a post on [livejournal.com profile] atreic's journal, and thought I'd repost it here.

If you don't have a friendly climate scientist you can ask, you can still get a good idea of whether climate change is real by following the money and asking yourself the following questions:
  1. Is there much money to be made by convincing everyone that climate change is real when it isn't?
  2. Is there much money to be made by convincing everyone that climate change isn't real when it is?
  3. Who has the money for a big campaign of disinformation, the establishment or the green movement (or whoever their shadowy bankrollers might supposedly be)?
  4. Has the fossil fuel industry displayed any evidence of scruples before, ever?
The answers are, respectively:
  1. Yes, a bit: wind turbines, insulation, etc.
  2. Yes, a fsckload.
  3. The establishment.
  4. No.
Hence, it seems clear to me that climate change is real, and sites like junkscience.org (beloved of the deniers) are, in fact, corporate shills. As a special case, which is more likely: that the IPCC exaggerates its claims to sound more important and advance people's careers (as the deniers claim), or that they are under huge pressure from governments to tone them down, as the green movement claims?

[Oh yeah: upcoming Climate Change bill. Write to your MP!]

Previously.

Edit: [livejournal.com profile] robert_jones was not impressed, and replied that he is "convinced by rational argument, rather than by anti-establishment paranoia." I replied,
The problem with this "debate" is that there is potentially a lot of money to be gained and lost, and so people are able to lay down massive amounts of pharmaceutical-grade bullshit to confuse and deceive. You can try to follow the climatological literature and critically read the writings of the deniers: but ultimately, both sides have accused the other of outright fabrication of data, so if you really want to know you'll have to go to Antarctica and repeat the key experiments yourself. Much as I'd like to go to Antarctica, this would be a bit tricky to fit into my teaching schedule. It's at this point that the kind of simplistic, ad hominem, follow-the-money line of argument that I outlined becomes quite valuable. Is the kind of climate instability we're noticing significant and unprecedented, or is it just part of an ordinary cycle, like the Medieval Warm Period (or whatever)? I'm not qualified to judge. I am, however, qualified to listen to others and guess at their motivations, and thus at whether they're likely to be lying to me or not.

[I'd also dispute your claim that doing things in a carbon-efficient way is going to be more expensive than doing things in a carbon-inefficient way. Most low-carbon technologies require higher up-front investment, but pay for themselves in the long term. One of the major obstacles to the improvement of, say, energy-efficient lightbulbs has been that the patents are held by the same people who hold the patents for incandescent bulbs, who don't want to endanger their revenue.]
pozorvlak: (Default)
Friday, January 5th, 2007 06:52 pm
I've been reading George Monbiot's new book, Heat: how to stop the planet burning. It's an excellent book, and I urge you all to read it. He describes how we can achieve the necessary cuts in carbon emissions to prevent the worst effects of climate change, and furthermore how we can do it without giving up our civil liberties or our industrial society. He seems to have done his homework pretty thoroughly - the chapters average out at about a hundred footnotes each. If you've been following his Guardian column, you'll recognize a lot of the material (some of it looks like it was copied-and-pasted from old columns), but there's some new stuff, and it's good to see his thought presented as a coherent argument.

Herewith an executive summary )

He's also summarised his plan here, with timings.

I'm currently reading The Utility of Force by General Sir Rupert Smith, which, while not quite so well-written, is also fascinating. Yay for the Blackwell's sale! :-)

pozorvlak: (Default)
Wednesday, May 3rd, 2006 12:59 pm
It's a little-appreciated fact that fans are chiral (ie, they come in left-handed and right-handed versions). Don't believe me? Lend your favourite fan to a friend, and watch them try to open it the wrong way, messing up the spokes. This has two downsides: first, the fact that your friends will infallibly open your fans the wrong way and damage them, and second, it makes fans uncomfortable to use with one hand or the other. My favourite fan, for instance, is right-handed, which means I can't fan myself with my left hand and write with my right hand. This sucks. Fortunately, I have an idea for an achiral fan, but I need some help with choice of materials and a few details of construction.

[Just so we're all on the same page: I'm talking about Japanese folding fans, IMNSFHO the best kind. Following the Wikipedia article I've just linked to, I'm going to call the paper bit that moves the air the "leaves", the things that hold this in place the "spokes", the thing around which the spokes rotate the "axle", and the heavy bits at the end of the leaves the "guards".]

The basic idea is to use thinnish wire for the spokes instead of slats of bamboo. Then the leaves can rotate freely around the spokes, allowing them to open in either direction. I've come up with a solution to the problem of attaching the leaves to the guards, but this still leaves the following problems:

  1. Attaching the spokes to the axle. You could maybe beat the ends of the wire flat, then punch a hole through, but if the metal's soft enough to be beaten like that it's probably too soft for use as a spoke. You could maybe attach the spoke to some sort of rotating block, but how? Remember that any such block would have to be less than a millimetre thick.
  2. Making the guards. Bamboo's ideal for this, but where do you get it from? And how do you work it? Are there any other good materials you could use?
  3. Decorating the fan. I'm thinking Chinese characters, because they look cool. Specifically, I'm thinking of using the kanji for "kanji". Self-reference in the finest tradition of Douglas Hofstadter :-)
So, any suggestions?

pozorvlak: (Default)
Monday, January 9th, 2006 06:37 pm
Yesterday I went to the big Borders in town and spent most of my Christmas book tokens on the following:

Neal Stephenson, Quicksilver and The System of the World (they were out of The Confusion)
Anthony Swofford, Jarhead
Arthur Herman, The Scottish Enlightenment
Glen David Gold, Carter Beats the Devil.

We've been talking on Hypothetical about marketing-versus-word-of-mouth, and here's an actual datum point: I bought the Stephensons because of prior positive experience of his work and recommendations from friends (and I first heard about him through Zompist's review of Snow Crash); I bought Carter Beats the Devil because of recommendations from friends; I bought The Scottish Enlightenment because it was there and in the 3-for-2 offer; and I bought Jarhead because it looked good when I read bits of it in the Guardian and at bookstalls previously. I've wanted to read it since before I knew about the film, but the film has made copies of the book a lot easier to find. So, my choices were mostly dictated by the inscrutable exhortations of my soul and the good words of my friends, and there was very little room for PR and marketing, right? Except it was marketing that got Jarhead excerpted in G2 back when the book first came out, and there's probably intense competition to get your book listed in the offers at Borders. Or maybe there isn't - does anyone know how the numbers work out? Do the suppliers get stiffed for the money that you save, or do they still make a profit?

Today I've been writing thank-you letters to my aunts and uncles for the book tokens, and reading Jarhead: it's great. Grimly fascinating stuff, and I can't wait for the film. I've never particularly wanted to join the Marines, but if I had possessed such a desire, I would now be cured of it.

In other news, my boiler seems to be on the blink and up the fritz. Or something like that: I'm not too sure of the technical plumbing terms. The flat is yer old-style Glasgow tenement, with less than perfect insulation. It gets a bit chilly. The agent came round today and pronounced himself unequal to the task of fixing it, so an actual registered gasman will be round tomorrow.