The complex I live in has been slightly beautified over the last year or so (think property values etc.), and finally, this week, the guys doing the work on the common areas got around to redoing the flower beds in front of my place.
click here for the rest of the story...

[ published on Tue 13.05.2008 23:43 | filed in interests/au | ]

...my rule is: you don't throw away good computer books, period.

Most folks at my palace de ork are...odd, to put it nicely: today I strolled over to the "Dispose Me!" desk in the hallway which is often stacked with orphaned books (today: loads of Flash, Dreamweaver and other less interesting stuff) and there I picked up this Absolute Gem: the 1977 hardcover edition of Donald Alcock's Illustrating Basic. (I very much recommend checking out the PDF excerpt. 134 pages of hand-lettered and -drawn illustrated goodness.)

Picture this: the person who dumped it, has had it since 1978 and nevertheless decided to toss out this classic.

These are people who'd throw out a full Knuth to make space for "Vista for Dummies"!

On similar occasions in the past I did inherit/adopt/reverently provide a new home to: Tanenbaum's Structured Computer Organization, Sterling+Shapiro's The Art of Prolog, one of the compiler bibles, The TCL/TK book and sundry Lesser Goodies. But enough of that; their (unfelt?) pain, my gain.

One of the cool things about the Basic book is that it's well written, and actually had enough appeal for Conny to spontaneously start learning how to program today. She did her first few experimental programs (with bwbasic and emacs on my/her Debian laptop) just this evening and so far is pretty much thrilled by what one can do. Pretty cool, and I hope she gets something of lasting value out of it.

Go Conny! :-)

[ published on Tue 13.05.2008 23:21 | filed in interests/au | ]

...if you like stereotypes, that is. Here goes:
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[ published on Tue 13.05.2008 12:37 | filed in interests/au | ]

I'm just about finishing Peter Watts' book "Blindsight", which is excellent but really, really really heavy stuff. Charlie Stross described that book aptly:

"Imagine a neurobiology-obsessed version of Greg Egan writing a first contact with aliens story from the point of view of a zombie posthuman crewman aboard a starship captained by a vampire, with not dying as the boobie prize."

I'd change that to read "...version of Greg Egan, but with McNihil's B&W mods, writing...", otherwise I fully concur.

It's a bit like Linda Nagata's excellent "Vast", but loads darker and with an Egan-like hard science disposition.

I'm also inclined to say nice things about Watts' Rifters books, which I just started - but likely more interesting to you out there is this factoid: Watts has published all his books under a Creative Commies licence online on his website (and in various convenient formats). Kudos to him, and I'll certainly consider buying his books when I see them in dead tree format.

[ published on Tue 06.05.2008 09:48 | filed in interests | ]

After chatting with friends who always bake their own bread (plus cakes and other market goods) I decided that having a breadmaker Would Be Nice, as I don't like white soggy sandwich bread.
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[ published on Sun 27.04.2008 22:48 | filed in interests/au | ]

As mentioned earlier and before I have a Wheely King rc toy. Me being me, that WK is nowhere near stock and I often delight in tinkering with it to make it work better or more fun or whatever.
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[ published on Wed 23.04.2008 15:11 | filed in interests/tinkering | ]

Emacs and exmh go together very well, but of course there's spots where things rub across. Today I scratched such an itch successfully: I now have access to exmh's address database from emacs (and so can you).
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[ published on Wed 23.04.2008 01:29 | filed in interests/comp | ]

Yes, That Orkplace again. Names and other identifying bits removed to protect the terminally cluele^W^Winnocent.

This email gem arrived a few minutes ago:

The SMG Workshop agreed that academic staff should wear their scholarly gowns for key events, such as the Faculty Award Night and graduation ceremonies, as from the second semester of 2008. ... The reasoning behind this proposal supports the view it will help provide students with an overall sense of academic custom and professional admiration. Thank you for your anticipated cooperation in this matter.

Somebody sufficiently annoyed by this fool idea replied (to all, in all caps which I fixed as being bad for your eyes):

we already wear gowns to graduation. wearing gowns anywhere else, such as awards night, would only provide students with an overall sense of hilarity at our expense. no one will attend awards nights if this unutterably silly requirement is in effect. why is there such a persistent drive to return to the middle ages, when we are supposed to be the university of the 21st century? >thank you for your anticipated cooperation in this matter.
i'm afraid your anticipation of our cooperation is mistaken.

Time to get the popcorn out, sit back, relax, and watch the upcoming exchange of heavy ordnance. "Fire for effect, over!"

[ published on Fri 18.04.2008 14:38 | filed in interests/anti | ]

"Lucky" must be his middle name -- and "Clumsy" his first: a fellow in Frankfurt fell down an elevator shaft, and landed on a woman who had "been there, done that" 24hrs earlier. He stayed awake, she stayed unconscious; he was not hurt while she is in bad shape.

How exactly one manages to fall into an elevator shaft despite knowing the thing is being repaired, is a tad beyond me.

[ published on Thu 17.04.2008 19:55 | filed in interests/humour | ]

...but quite nice. I've got my own ideas about how to manage my collection of digital photos and so I wrote my own tiny, idiosyncratic but sufficient photo manager five years ago (says rcs; hmm, those years went quickly!).

Now that Conny has a shiny digital camera of her own (and a bit of associated trigger-happiness) she also needs something to organize her pics with. And while my photomanager is fine for me Old Fart, it's a little bit gnarly. So I looked at more user-friendly (but not idiot-friendly) solutions. And voila, the first apt-cache hit was already what I had been looking for.

Martin Herrmann has written "martin's picture viewer" aka mapivi, which is more than just a viewer (a feature which is fairly irrelevant to me). It's written in perl plus tcl (important to me), it's a photo manager (ditto) and it keeps pretty much all info where relevant: in the photo files themselves. The last is most important IMHO, because it frees me from sundry databases, proprietary overview formats and the like. mapivi uses EXIF and IPTC metadata to record pretty much anything you can think of in extra segments of your jpegs (and other image formats that allow such metadata storage).

The thing is a bit rough in places but works very well for a 0.x release, and the combo of Perl and Tk is really fun to work with.

I've immediately gone full steam ahead and coded the two plugins I need to emulate the few features my photomanager had over mapivi (complete with balloon popup help texts for Conny); also submitted one patch to the upstream author.

Gone is my photomanager, and welcome mapivi. Not Invented Here indeed :-)

[ published on Wed 16.04.2008 14:07 | filed in interests/comp | ]

Not entirely unlike a Kaplan turbine, my mini-turbine is used in a high-flow, low-head(room) scenario. Only in reverse, sort-of. Confused? Perfect, mission accomplished :-)
click here for the rest of the story...

[ published on Fri 11.04.2008 13:18 | filed in interests/tinkering | ]

Recently I experimented with having adsense advertisments on the chgc site, with the rationale being: it costs me money (to run that server) and time (to run the club web, membership stuff and mailinglists) and I don't get anything out of it except a Warm Fuzzy Feeling - which occasionally is very close to the Warm Fuzzy Feeling you get when some(body|thing) has peed on your pants.

Anyway, I thought why not try and see whether ads might work for paying towards the server cost. Hence, Enter Adsense, which claims to provide contextual ads.

...

...

...

A week later they hadn't managed to serve me one single ad (always only offering the community service ads - or none).

So, Exit Adsense: you suck.

[ published on Wed 09.04.2008 14:02 | filed in interests/anti | ]

A snippet from the classic Owed to a Spell Chequer:

I halve a spelling chequer
It came with my pea sea
It plane lee marques four my revue
Miss steaks aye ken knot sea
...

Reminds me a bit of what openoffice's spall choker did to one of conny's homework texts recently...

[ published on Sun 06.04.2008 13:06 | filed in interests/humour | ]


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[ published on Tue 01.04.2008 00:34 | filed in interests/tinkering | ]
 2008_03_19-entropy.jpg

No further comment.

[ published on Thu 20.03.2008 11:20 | filed in interests/anti | ]

Yesterday started rainy and windy but got quite nice later on.
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[ published on Sun 16.03.2008 19:55 | filed in interests/flying | ]

(This title constitutes an obscure in-joke for Austrians. No alkbottles were harmed making this joke.)

In the news today: Australian Senator arrives at Parliament dressed as a beer bottle. My first thought: "When in Rome^WACT..."

ABC has the story complete with pics.

[ published on Thu 13.03.2008 21:47 | filed in interests/humour | ]

Last Saturday I finally managed to meet up with Ben and Mel (and Thomas) to visit one of the Byron Bay / Northern Rivers PG sites.
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[ published on Thu 13.03.2008 00:06 | filed in interests/flying | ]

...the non-geeky middle-aged checkout chick at Aldi starts chatting to you about her now using this Linux Thing, and that being quite cool.

I wore my Tux shirt today (which has a penguin and the slogan "Linux - for IQs higher than 95" embroidered) and she said something like 'hmm, I guess I've got an IQ higher than 95 then!'; her new EEE pc thingie which comes with Linux was quite nice and so on.

[ published on Tue 19.02.2008 21:42 | filed in interests/debian | ]

Conny likes to fall asleep with some light on. I dislike having to wait until she's gone late at night, just to switch off her bedside light. I dislike having an energy-wasting halogene 25W burning all night long even more, not to mention the temperature problems with the transformer base buried in stuffed animals.

The solution: teach her something! So we repurposed an old broken desk lamp carcass, I taught her how to solder, programmed a 12f629 PIC and we combined the above with sufficiently many white LEDs and some recycled laptop Li-Ion cells into an auto-off bed light: Press the button when off, and you get 18 min of light. Press the button when the light is on, and the light goes off. Simple, neat, efficient. As a bonus the lamp body is black, Just Like It Should Be.

The circuit is trivially simple, the diagram follows and the PIC code (also boringly simple) is here (plus the auxiliary delay library).

nightlight

The diagram is not complete in two particulars: I used a 4.5mm plug with a builtin bypass switch to isolate the battery when charging (don't want to blow the LEDs and/or PIC when my intelligent charger feeds the LiIon), and I repurposed the original lamp switch as an extra "general disconnect". BSTS.

Great care should be taken to avoid shorting or annoying the three 2000+mAh cells in any way - unless you like to play with fire extinguishers.

 2008_02_14-nachtlicht-brain.jpg  2008_02_14-nachtlicht-leds.jpg  2008_02_14-nachtlicht-löterei.jpg 2008_02_14-conny-nachtlicht-löten.jpg 2008_02_14-nachtlicht-fertig.jpg  2008_02_14-nachtlicht-in-action.jpg

Conny did all the soldering apart from one or two small fixes and the LED interconnections. Well done.

[ published on Mon 18.02.2008 00:00 | filed in interests/tinkering | ]

...with a FREE spelling mistake, but nevertheless excellent.

motherlode

(source:some flicker user via Cryptogram)

[ published on Thu 07.02.2008 09:47 | filed in interests/comp | ]

Das Inserat hier ist grad eben vorbeigekommen, sehr schräg...

1920s-chic

Dazu passend die folgende Headline von gestern: Ein Abgeordneter in Mississippi (selber blad) hat einen Gesetzesvorschlag eingebracht, nachdem es Restaurants verboten werden soll, Blade weiter zu füttern. Welch Brilliante Idee.

In Obelix' Worten: ils sont fous, ces americains. Completement fous!

[ published on Wed 06.02.2008 10:44 | filed in interests/humour | ]

Townsville might be a good place to learn golf quickly - or else. Gives a whole new meaning to the term "water hazard".

[ published on Fri 01.02.2008 08:54 | filed in interests/humour | ]

This stuff is pretty cool I think. I found that one the funniest construct.

[ published on Tue 15.01.2008 23:08 | filed in interests/humour | ]

I enjoy technical challenges...if and when I succeed eventually. This posting may be a technical challenge for you, but watch me not care. Some of you may appreciate the information and that's good enough for me. So, if you're interested in homegrown MP3 music boxes, Linux on Netvistas, PIC microprocessors, RS-232, infrared remote controls, and what an obtuse idiot I occasionally am, read on!

(As always I also hand out the involved source code, which might come handy if you want to build something similar.)
click here for the rest of the story...

[ published on Mon 17.12.2007 13:30 | filed in interests/tinkering | ]

From cryptome:

A federal judge in Vermont has ruled that prosecutors can't force a criminal defendant accused of having illegal images on his hard drive to divulge his PGP (Pretty Good Privacy) passphrase. U.S. Magistrate Judge Jerome Niedermeier ruled that a man charged with transporting child pornography on his laptop across the Canadian border has a Fifth Amendment right not to turn over the passphrase to prosecutors. The Fifth Amendment protects the right to avoid self-incrimination.
[ published on Mon 17.12.2007 10:51 | filed in interests/crypto | ]

The QLD Transport Authority was (or still is?) running one of those safety awareness campaigns, with the slogan "Rest or R.I.P.", complete with huge billboard ads showing a white pillow and said slogan.

(see pg. 5 of this flyer for an idea of how that looks).

Driving up to Ikea and rob's place yesterday, I went past the driver training centre at Mt. Cotton, which sports such a huge billboard ad.

It also has a neighbour/vis-a-vis, which is announced on the road signs around the place in the same size as the training centre: the neighbour is a crematorium. Driver training turn left, Crematorium turn right. Easy, but don't you forget it!

I wonder which institution was there first, and who decided to show that particular ad facing the road and the crematorium.

Apropos billboards and coppers:

speedingdisabled
[ published on Thu 06.12.2007 14:44 | filed in interests/humour | ]

No idea whether the new overlords will be any better than the old ones, but the gnome is certainly sulky: he's ordered his minions to take down the official website of the prime minister and replace it with a fairly childish bit of text. Defeated indeed!

[ published on Tue 27.11.2007 12:25 | filed in interests/anti | ]

This was actually quite fun to build, a quickly gratifying small job: how do you drive an LED from very little voltage (as in, a single 1.5V cell)? You can't do it directly because leds need more voltage (at least 1.6V for reds, above 3.0V for many/most whites).

So you need some booster circuit. Clive has a nice set of instructions for making what he calls a "Joule Thief", a simple inverter with three parts only: a centre-tapped inductor, a resistor and a transistor (He also has articles on other Must-Have Cool Things, like how to make a USB-powered turd).

For the ham-fisted among us, these guys show how to build the same setup with larger-sized parts.

I had a few minutes of nothing better to do this arvo, and built three variants with a fat 10mm white led: one hand-wound largish coil (2cm dia), one salvaged coil of similar size, and one smaller hand-wound one (0.9cm dia) with which the circuit wouldn't light up continuously.

For the adventurous, Dick Cappel has another set of really nice pages on similar projects, like the Rusty Nail LED inverter.

[ published on Sun 04.11.2007 21:03 | filed in interests/tinkering | ]

I mentioned the Wheely King toy I got recently, and that I can not leave it as it is; somebody like me simply must make things better and more fun. This is a recap of what I've done so far, with some notes as to what works and what doesn't.
click here for the rest of the story...

[ published on Mon 29.10.2007 23:04 | filed in interests | ]

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