Archive for the ‘Geek’ Category

Headline of the day.

Thursday, September 20th, 2012

Where Is Cuba Going?

This is a surprisingly hard question to find an answer for, but the best information I’ve been able to find seems to point to Cuba moving steadily westward as the Atlantic Ocean widens and South America pushes upwards towards North America, until eventually (some 250 million years from now) the continents reassemble themselves as Pangea Ultima and Cuba is sucked under what’s left of the Atlantic Ocean.

Then again, that may not have been the question the NYT had in mind…

And we’ll have fun, fun, fun until Daddy takes the newspapers away…

Friday, August 31st, 2012

The street finds its own uses for things.

Oh, look! Julie Taymor and the “Spider-Man” producers have settled their lawsuit out of court.

Terms of the settlement were not disclosed and representatives for Ms. Taymor declined to comment further on Thursday. A press representative for “Spider-Man: Turn Off the Dark” also declined to comment.

Quel frommage!

The worst Division I football program in history?

Over 11 seasons, Savannah State, the self-proclaimed University by the Sea, in a charming city distinguished by oak trees that sprout Spanish moss, has won 17 games, just five against Division I teams. It has changed coaches six times — once because of a death — and had nine athletic directors, including interims. It has been placed on N.C.A.A. probation twice and faced a pair of embarrassing lawsuits that claimed racial discrimination.

Savannah State is playing Oklahoma State and Florida State in the first two games, and will collect $860,000 (“which represents about 17 percent of the Tigers’ modest athletic budget”) for those games.

By the way, last year was a “1-10 season that included losses by scores of 63-6, 41-6, 47-7, 45-3 and 59-3, in addition to a defeat at the hands of a team that had lost 29 conference games in a row.”

There’s an interesting piece in the LAT about George Perez, former city manager and city councilman in Cudahy. (Previously.) Perez has not been charged with any crimes, yet, but is a major figure in the criminal cases against other Cudahy officials:

…court documents repeatedly refer to a top city official identified as “G.P.” orchestrating much of the alleged wrongdoing. Two law enforcement sources said “G.P.” is George Perez.

Perez started out as a janitor in Cudahy and worked his way up to the city manager position

…despite his populist persona, rumors of corruption long flowed from Cudahy City Hall, where nothing seemed to happen without Perez’s blessing.

And this is kind of interesting:

By 2000, Perez, married and with four children, was serving on the City Council and working at a building materials store. Then he lost his job. The council changed city laws so it could appoint Perez city manager. A group of Southern California city managers were so disturbed by Perez’s elevation that they asked for a criminal investigation. County prosecutors launched a conflict-of-interest probe, but investigators were met with silence at Cudahy City Hall, they said. In a memo produced by the prosecutors, they wrote that it was “clear that Perez liked politics and power more than the building materials business.”

So there were concerns twelve years ago, but nothing happened? Quel frommage, again!

Armstrong roundup.

Sunday, August 26th, 2012

Obits from the major papers: LAT. NYT. WP.

NASA’s tribute.

Obit watch: August 25, 2012.

Saturday, August 25th, 2012

Neil Armstrong.

I can’t find a good way to embed the NASA videos in a post, and I don’t want to link to the ones on YouTube, which are dubiously sourced. So here’s NASA’s Apollo 11 video page. And another page containing some restored Apollo 11 video.

Ad astra per aspera. Godspeed, Dr. Armstrong.

Some stuff.

Saturday, August 25th, 2012

More specifically, a random assortment of things that turned up in my Post Office box today, or that I found while I was out and about. Not that I’m bragging, but I think some folks might be entertained, amused, or interested in some of these items.

The first issue of “Infowars: The Magazine” (as Gregg Easterbrook might say, “Published on Earth: The Planet”).

I’ve got big balls. (Also acceptable: “Ah, but the strawberries. That’s where I had them.“) (Previously.)

The only political party that can actually change things this year. (Get yours here.)

Finally:


My USB TV receiver from Germany is here! (Previously.) More when and as I get a chance to dink with it.

Random roundup: August 22, 2012.

Wednesday, August 22nd, 2012

40 years ago today, John Wojtowicz and Salvatore Natuarale tried to hold up a Chase Manhattan bank branch in Brooklyn. I believe this is what that location looks like today:

View Larger Map

Wojtowicz and Natuarale botched the robbery, and ended up in a 14 hour long standoff with police. The NYT has a retrospective.

And why does this matter, other than it being kind of a big deal at the time? Well, the robbery inspired a Sidney Lumet film:

Obit watch: Victor Poor, an influential early chip designer for Intel.

Noted:

Mr. Poor retired in 1984 and pursued a passion for sailing. Looking for a way to communicate while he was at sea, he developed a wireless data communications system, initially called Aplink, for Amtor packet link, and later Winlink. The system was widely adopted by radio amateurs, the United States military, and state and local emergency preparedness teams. It was credited with being one of the few communications systems that worked in the wake of Hurricane Katrina.

Edited to add: Thanks to Borepatch for reminding us it is also the 20th anniversary of the shooting of Vicki Weaver at Ruby Ridge.

A bunch of random links.

Sunday, August 19th, 2012

Here are a bunch of random links that I promised various people, collected in one place, so I can email one link rather than half-a-dozen.

“Stupid Idea Of The Day: Let’s Nationalize Facebook!”. This was also in TMQ Watch, but buried, so I’m breaking it out here. Note that this goes to Forbes and not Slate, because I refuse to give Idiot Boy any linkage.

Obit from EE Times for Hans Camenzind, inventor of the 555 timer IC.

Rap music is becoming less homophobic.

“Many hip-hop artists, too, noticed when Jamaican dance hall artists such as Buju Banton, whose lyrics are violently anti-gay, saw lucrative tour dates canceled as a result.”

The latest in Buju Banton’s legal case, or “You got 10 years. Would you like to go for 15?”

“What will 2011 (the Year of the Rabbit) hold for Buju Banton?” Somehow, I don’t think the answer was “Federal prison”.

“I ride a Flying Pigeon. It’s an obscure bicycle, imported from China. You’ve probably never heard of it.”

Obvious headline is obvious.

Friday, August 17th, 2012

So instead, I’ll link to this:

and this:

and let my readers fill in the blank.

Toys, toys, toys.

Monday, August 13th, 2012

Did you know that the promo code SUCKITGROUPON will get you 45% off your Buckyballs order from getbuckyballs.com?

I didn’t, either, until I saw it on Overlawyered. I already got my first set of Buckyballs, but I just ordered some more: this time, I got some BuckyBigs, so I can pretend to be Captain Queeg while I’m sitting at my desk.

(Note that I have no financial relationship with the BuckyBalls people; I just want the CPSC to die in a fire.)

In other news, the Germans have shipped my USB TV receiver.

Obit watch: August 13, 2012, part 2.

Monday, August 13th, 2012

Martin Fleischmann, of Fleischmann-Pons cold fusion fame, passed away August 3rd. (LAT. NYT.)

(No matter what you may think of Fleischmann, he doesn’t deserve to share a post with that scumbag Powell.)

August 8th updates.

Wednesday, August 8th, 2012

Longer Marvin Hamlisch: NYT, LAT.

Speaking of obits, noted astronomer and pioneer of radio telescopy, Sir Bernard Lovell, passed away on Monday.

There was an update to the Sheri Sangji story while I was on vacation that I wasn’t able to blog. Luckily, Derek Lowe was on the case. For those of you who don’t remember the story, Ms. Sangji was working with t-butyl lithium in a UCLA lab; the substance, which catches fire when exposed to air, spilled, Ms. Sangji was severely burned, and died 18 days later. The university and the primary researcher, Dr. Patrick Harran, faced felony charges.

While I was gone, the charges against the university were dropped. Apparently, UCLA made a deal with the prosecution. The charges against Dr. Harran still stand.

But then it gets weird. Dr. Harran’s defense team is trying to discredit the OSHA report on the accident, based on the accusation that the author of the report participated in a murder when he was 16 years old and failed to disclose this to his employers. I’m not sure at this point if it was actually established that the author of the report and the murderer were the same person, but the author resigned his position anyway.

This is intended to be a short update. The Derek Lowe blog entry linked above has a longer summary, including links to various other sources; I commend it to your attention.

Lessons learned.

Monday, August 6th, 2012

So…somebody I know was having problems with their netbook running Ubuntu.

The somebody in question decided (for good and sufficient reasons) that part of the problem might be due to them having done several upgrade installs of recent Ubuntu versions which left cruft on the system. This somebody thought the best thing to do was to make a backup of /home, reformat the box, and reinstall Ubuntu 12.04 from scratch, blowing away all the existing data and partitions.

Which they did.

The somebody in question had a MySQL database on the box that had somewhere around ~2,500 records in it. It was a fairly simple database, probably overkill for MySQL: one table, a few columns.

It turns out that MySQL doesn’t store databases in /home. MySQL stores databases in /var/lib/mysql by default, and the somebody in question never changed the default. (This vaguely makes sense if you think about it; after all, MySQL is intended to be a multi-user database, so why would you store databases under an individual user’s home directory by default?)

The somebody in question found this out after blowing everything away. And, of course, the somebody in question only backed up /home.

Fortunately, the database isn’t that important, and much of the data on it can be recovered from older .CSV files that were used to import the data into MySQL.

But next time, the somebody in question is going to backup every damn thing, not just /home.

The somebody in question is also going to try to get out of the habit of making assumptions about where things are stored.

Hmmmmmmmm.

Friday, August 3rd, 2012

In the DEFCON 20 day 2 notes discussing the ADS-B presentation by Renderman, I alluded to some work on using USB TV tuners to pick up ADS-B broadcasts.

I did a little more research on this earlier today, just to satisfy my own curiosity.

The RTL2832U outputs 8-bit I/Q-samples, and the highest theoretically possible sample-rate is 3.2 MS/s, however, the highest sample-rate without lost samples that has been tested so far is 2.8 MS/s. The frequency range is highly dependent of the used tuner, dongles that use the Elonics E4000 offer the widest possible range (64 – 1700 MHz with a gap from approx. 1100 – 1250 MHz). When used out-of-spec, a tuning range of approx. 50 MHz – 2.2 GHz is possible (with gap). [Emphasis in the original – DB]

Holy cow! I’ve been wanting to mess with software defined radio, but the $1,500 cost for hardware is a bit discouraging. This looks like an excellent way to get started for about $20 instead. The necessary software is linked from the rtl-sdr page, and you can even get a script that will build gnuradio with the proper components.

What has been successfully tested so far is the reception of Broadcast FM and air traffic AM radio, TETRA, GMR, GSM, ADS-B and POCSAG.

Yow!

Edited to add 8/4: We are not amused. In the past two days, we have been to Fry’s. The shelves at Fry’s were almost completely stripped bare of USB TV adapters. We have also been to three different branches of Discount Electronics; none of them had any of the listed adapters. We have checked Google, and all of the adapters listed with the E4000 tuner do not appear to be available from vendors in the United States. The only adapter on rtl-sdr’s list that we were able to find was the Ezcap EZTV645 DVB-T Digital TV USB 2.0 Dongle with FM/DAB/Remote Controller which DealExtreme sells. However:

  1. There are conflicting reports as to whether this is the one rtl-sdr is talking about, and whether this one has the E4000 tuner.
  2. There are a lot of reports that DealExtreme is slow in shipping; as in, a month or longer.

I’ve ordered the Newsky TV28T that’s listed on the sysmocom site (linked from the rtl-sdr page). With shipping, it came out to 23.30 euros, or about $28.86 in dollars. That’s still well within my price range for tinkering with SDR. I’ll update when the device gets here.

In the meantime, if anyone has any GNURadio or general SDR tips, advice, or suggestions, please feel free to leave them in comments or shoot me an email. Contact addresses are in the usual place.

(And thanks, Borepatch.)

DEFCON 20 updates (round 2).

Thursday, August 2nd, 2012
  • Here’s a link to the slides from Terrence Gareau’s “HF Skiddies Suck, Don’t Be One. Learn Some Basic Python” presentation. I’m not complaining, but be advised that this is a large download (620 MB ZIP file) with video and code examples. Also be advised that, based on a very brief preliminary skim of the file, there may be some NSFW material in the presentation.  (Also not a complaint, but an observation.) I’d like to thank Mr. Gareau for making this available: his presentation is the only one in the “DEFCON 101” track that I’ve found so far.
  • Added a link to Renderman‘s presentation on ADS-B hacking, “Hacker + Airplanes = No Good Can Come Of This” to the day 2 notes.
  • Josh Brashars (who is a heck of a nice guy) and I have exchanged emails, and he’s graciously allowed me to temporarily host the version of his “Exploit Archaeology: Raiders of the Lost Payphones” presentation from the DEFCON 20 DVD. Of course, iDisk no longer exists (NOT that I’m BITTER or anything) and WCD’s hosting provider/WordPress implementation has a 10 MB file size limit, so I’m using Dropbox to host this file. Let me know if it doesn’t work.

I am disgusted.

Thursday, August 2nd, 2012

It is 3:00 PM local time on Ice Cream Sandwich Day, and nobody has brought me my Android 4.0 tablet yet.