New Toy

The scope is set to 0.2us/DIV x 10 on the horizontal axis. Power consumption is after about 10 minutes of warmup.

Ortsveränderliche Elektrische Betriebsmittel

Here are our tax-euros hard at work. I just had a visit from a guy of the german TÜV here checking the portable electrical equipment. Note the portable. So he put a sticker on every lamp or electrical socket, but NOT on the extension cord that is made non-portable by fastening it with cable-ties to my desk. And he did not even find the old shoddy and most-likely non-TÜV-safe halfway broken extension cord hidden under the other Desk!

Pessimism

tanning salon

State Diagram

I think, I got it...

Entering numbers

We are ordering lot of things (clothes, books, kids' toys) online. Which leaves me with the task of paying the bills found in the parcels. That's not too bad because I can do it onine. The only thing that annoys the hell out of me is transcribing all those numbers (account, bank, customer, invoice) from the paper copy into my web browser.

I don't have anything against typing numbers in general, but why don't they group them e.g. by 4? With hyphens in between? Most likely because the wise programmers of the severly fucked up web-frontend to my bank decided that anything but numbers in most fields is a bad thing. Therefore don't even allow such a readability-increasing method in their various number-eating input-boxes. Oh, and please somebody explain to me why a invoice number has to be 15 digits? Especially when paying a bill from a relatively small german publisher who - for sure - has less than 10¹⁵ customers whom to bill. Suddenly typing in microsofts 8x4 character license keys does not look like a bad amusement at all.

iBook “repair”

The RAM died.

Light repair

A transformer died.

2 PhD students, 1 Postdoc

T400

I inherited a interesting looking old ISA card. After closer inspection it appears, that it houses a INMOS T400, a Transputer CPU! Absolutely fascinating and unfortunately utterly outdated.

No gigabit for me :-(

Bell, No Bell, Bell

Three things found next to eachother in the hospital. Bell, No Bell, Bell.

Garbage in, garbage out, ...

10 m³ garbage container

Election Computers

Wij vertrouwen stemcomputers niet have analysed the election computers that are used in the netherlands and found out that they have a huge number of security flaws. Their great publication is a very detailed description of all the shortcomings they found up to now, it shows some possible attacks they have implemented and describes few more that are now known to be feaseable.

Those machines are basically a overpriced version of the Amiga 500, with less RAM and without the nice sound and video capabilities -- in a huge box. There is not a single feature built in to try to counter vote forgery, it's really just a plain 68k computer without any cryptographic or trusted-computing capability.

Those voting-machines are very simmilar to the computers that are used in some regions of germany. Of course they have been thoroughly examined; in germany (where I live) by the PTB which is responsible to maintain precise clocks (a task it does very, very good) or to provide standard-weights so that scales at the grocery-store measure the correct amount of vegetables you buy. I'm sure our election computers are really precise in this regard.

It's noteworthy that the german BSI (the authority for security in information processing, who really are knowledgeable about computer and IT security) have not been ordered to evaluate those computers (who said bribery?)! And of course the report on the test done by the PTB is confidential not to compromise the valueable 1980's technology trade secrets of the supplier. What a joke.

In the Netherlands they have been checked by the authority responsible for the safety of cars or electrical installations in bildings. No one will ever get a electric shock or be injured by a hard edge on those machines -- correct counting oviously was of no concern to the testers.

The computer magazine c't recently had an article about that e-voting-mess in general (issue 16/06, page 54), and after reading few reports about how that works in the USA I honestly was not really surprised about what the dutch hackers had found out. Maybe that's also why I quicky got distracted from studying the NEDAP-hardware to find this little gem:

A javascript emulator of hd44780 LCD displays!

More video surveillance

After the attempted train-bombings here in germany, our minister of the interior promptly declared that he had already spoken to the representatives of the german bundesbahn to have the number of cameras in trainstations increased. This is done, so that we can catch more of those TERRORISTS, of course. Now obviously this plan has been carried out already, because since the last time I visited hamburg the number of cameras on the S-Bahn in Altona and Sternschanze has doubled! If you look more closely at the camera housings (those photographs are so shoddy, you cannot even see the label :-( ) they are clearly marked as "camera 4" and "camera 4 (redundant)". I feel much safer already.

Panorama

Filthy Keyboard

Words cannot describe the amount of lint deposited in and onto the keyboards I am forced to use.

On shift

On shift again, this will be my cozy little home for the next week.

Composite Sync

So, I have this nice monitor, a SUN GDM20D10 which relates to a old Sun workstation that is dog-slow by todays standards and which I therefore no longer use for anything. I had built a adapter-cable for it's strange connector a long time ago, but never found a graphics card that outputs composite sync signals. Those sync signals tell your monitor when it has to start drawing a new line, or when it has to begin at the top of the screen after it has reached the bottom and todays PCs usually carry those signals on separate lines. And because SUN monitors are different, they want those signals merged together on a single input pin which my graphics cards is not able to provide. (Well, it is, but there is currently no simple way to tell it to do so). I always planned to build one of the circuits whose schematics you can find on the web for that purpose, but always forgot buying the necessary parts. Now while cleaning up the cellar, I stumbled upon that lonely 47LS00 you can see soldered to the white cables and held by the oscilloscope probes. Granted, my VGA connector now looks a little bit odd, but finally it sends something looking almost like a good composite sync signal onwards to the CRT. And it's good enough to persuade the monitor to display something (and not just turn off and going into power-save-mode). Finally, no more tiny icons and blurry text on that old and crappy 17"-tube. That makes me happy.

Bruce Schneier Facts

Ok, you have probably seen this already, but it's just too good to take the chance you'll miss it: Bruce Schneier Facts, which is a parody on Chuck Norris Facts, which itself is a parody on Chuck Norris. Update: The exhaustive list has been posted in Bruce Schneier's Blog