Posted by Bill S on a rocketry mailing list I belong to:

The links below contain pretty concise short articles on the "homebrew" Palestinian terrorist Kassam rockets being fired at Israel. A search of Google using the term "Kassam" illustrates its a pretty hot topic in that country.

".....Based on technical assistance received from the Lebanese terror group Hezbollah, and what Palestinian technicians and engineers learned from books and the Internet, a workable design was developed.......There have been roughly three versions of the Kassam developed so far......The “Kassam I” is 31 inches long, 2.4 inches in diameter, weighs 12 pounds, has about a pound of explosives in the warhead and has a range of about three kilometers. “Kassam II” is 71 inches long, six inches in diameter, weighs 70 pounds, has about 11-15 pounds of explosives in the warhead and has a range of about eight kilometers. “Kassam III” is over 80 inches long, 6.7 inches in diameter, weighs about 200 pounds, has 22-44 pounds of explosives in the warhead and has a range of about ten kilometers....."

From the photos in the IDF page (second link), these are made out of metal, with the motor and warhead casing also being the rocket body. The unguided rockets have welded metal fins.

As Stormin Normin said in the gulf war of Iraq Scud missiles, they are "militarily insignificant". But, they do keep the population stirred up and therefore the military engaged far more than should be necessary from a truly military perspective...... as is the terrorists intent. Unfortunately the bad guys have achieved 4 kills to date out of about 400 rounds fired.

Posted by: Ted at 05:44 AM | category: SciTech
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... but I also don't have a GMail account.

Thanks to Johno at the Ministry of Minor Perfidy for the pointer to concentrated electronic paranoia.*

*Note that paranoia about something does not automatically mean that you're wrong.

Posted by: Ted at 08:11 AM | category: SciTech
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At least according to a new report released by scientists studying Dinocephalosaurus, a long-necked aquatic reptile that lived in what is now China some 230 million years ago.

"The long neck would allow it to approach prey without the whole body becoming visible," Olivier Rieppel of the Field Museum in Chicago, a co-author of the report, said in a telephone interview.

Which is good (for the Dinocephalosaurus, not the fish), but it may have done even better than that. Ever notice how when you try to catch or swat certain insects, they seem to know and escape at the last second, even if you sneak up on them? Some insects have organs that sense air pressure, like the wave of air that arrives a split second before the rolled up newspaper. Fish have that ability too, and water, being much more dense than air, telegraphs the pressure wave even more noticably (try it in a swimming pool or bathtub, you'll see what I mean). So how did Dinocephalosaurus solve that little problem?

Michael LaBarbera of the University of Chicago, a co-author of the report, said the rib-like bones along the side of the neck may also have played a role in hunting.

Those bones give the neck some stiffness, Rieppel explained. It could flex, but not like a snake.

According to LaBarbera, contraction of the creature's neck muscles could have rapidly straightened the neck and splayed the neck ribs outward.

That would have greatly increased the volume of the throat, allowing the animal to lunge forward in the water at prey. Ordinarily, lunging through water creates a pressure wave that a fish can sense, allowing it to flee. But the researchers said that by suddenly enlarging its throat Dinocephalosaurus could, in effect, suck in and swallow its own pressure wave, giving it the ability to strike without warning.

The original Big Gulp. Nature does some amazing things.

Posted by: Ted at 06:01 AM | category: SciTech
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Cannibal, yes. Murderer? Maybe not. Desperate people go to extreme lengths to survive, and Alfred Packer always insisted that he only killed one man in his expedition of six, and that it was in self-defense.

Now a museum curator has used archeology and advanced forensics science to show that Packer may have been telling the truth 130 years ago.

Update: According to the first link above:

The University of Colorado at Boulder named their student cafeteria The Alfred Packer Memorial Grill, apparently as a derisive statement about the food served there.

Now I want BBQ for lunch...

Posted by: Ted at 09:19 AM | category: SciTech
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1 I hope you've seen "Cannibal, the Musical." It's a not-to-be-missed TROMA DVD release, the Alfred Packer story done by Trey Parker and Matt Stone.

Posted by: Susie at September 18, 2004 02:20 PM (aGSjc)

2 Why doesn't it surprise me that you knew that, Susie?

Posted by: Ted at September 18, 2004 04:30 PM (ZjSa7)

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Remember when I posted the link about these guys? A group of radio control hobbyists who built a scale B-52; 300+ pounds, 27 foot wingspan, 8 working miniature jet engines. So very impressive.

It crashed. Before, during, and after video and pictures here.

Posted by: Ted at 06:14 AM | category: SciTech
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1 Ow.

Damn, that thing was a work of art.

Posted by: Pixy Misa at September 12, 2004 10:01 AM (+S1Ft)

2 Double damn. Looks like it hit the ground pretty hard, too.

Posted by: Tuning Spork at September 12, 2004 05:13 PM (88z1C)

3 Gad! How many man hours of work went up in smoke with this project! Maybe they should have taken it to the Burning Man in thr desert, it would have fit right in! My heart goes out to these guys.

Posted by: Big Al at September 12, 2004 05:54 PM (Je73l)

4 It was kind of chilling too, because that flight profile exactly matched a video I saw of a real B52 crashing at an air show several years ago. The buff is just not built to fly when the wings go vertical like that. Spooky parallel.

Posted by: Ted at September 12, 2004 06:06 PM (ZjSa7)

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Spammers + Hackers = Uh oh.

New Worm Travels by IM

Paul Roberts, IDG News Service

A new version of the worm that spread from infected Microsoft Web servers in June has been identified and is using instant messages and infected Web sites in Russia, Uruguay, and the United States to spread itself, according to one security company.

Researchers at PivX Solutions of Newport Beach, California, have intercepted new malicious code closely resembling that from widespread attacks in June attributed to a worm named "Scob" or "Download.ject." The new attacks use mass-distributed instant messages to lure Internet users to Web sites that distribute malicious code similar to Download.ject, says Thor Larholm, senior security researcher at PivX.

This wave of attacks works similarly, routing victims to Web sites with code that takes advantage of vulnerabilities in Microsoft Internet Explorer and Outlook. Though Microsoft has patched those vulnerabilities, the attackers are attempting to exploit unpatched systems. Two patches from 2003, MS03-025 and MS03-040M, address the flaws used by the new worm, Larholm says.

How It Slithers

First detected on June 24, the Scob attacks were attributed to a Russian hacking group known as the "HangUP team." The virus used a recently patched buffer overflow vulnerability in Microsoft's implementation of Secure Sockets Layer to compromise vulnerable Windows 2000 systems running Internet Information Server Version 5 Web servers. Companies that used IIS Version 5 and failed to apply a recent security software patch, MS04-011, were vulnerable.

The June attacks also used two vulnerabilities in Windows and Internet Explorer to silently run the malicious code distributed from the IIS servers on machines that visited the compromised sites. The malware redirected victims to Web sites controlled by the hackers, and downloaded a Trojan horse program that captured keystrokes and personal data.

The newer attacks begin with instant messages sent to people using America Online's AOL Instant Messenger or ICQ instant messaging program. The messages invite recipients to click on a link to a Web page, with pitches such as "Check out my new home page!" The messages could appear to be sent from strangers or from regular IM correspondents, or "buddies," Larholm says.
Once victims click on the link, they are taken to one of a handful of attack Web pages hosted on servers in Uruguay, Russia, and the United States. There, a Trojan horse program is downloaded.
Greedy Worms?

In addition to opening a "back door" on the victim's computer through which additional malicious programs can enter, the new attacks change the victim's Web browser home page or Outlook e-mail search page to Web sites featuring adult content, Larholm says.

PivX is still analyzing the attacks to see if malicious code is placed on victims' machines. However, many of the files used by the new worm and the way the attacks occur point to the same group that launched the Scob attacks in June, Larholm says.

"The code is different enough to be something of its own, but unique enough to be related," he says. "And as with the Scob attacks, this is all about money--in this case, driving ad revenue for specific people."

PivX has informed antivirus companies of the new malicious code, Larholm says.

Posted by: Ted at 05:14 AM | category: SciTech
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In my research and testing (oooo, sounds official, doesn't it?) about PDA-friendly blogging*, I noticed that many sites - especially some of the 'biggies' - don't offer XML syndication. I think it comes standard with most blogging software now, which means it was intentionally removed.

I'm not an expert on this stuff, which is why I'm studying it. The main effect (I think) of not offering syndication is that aggregators can't include your site in their news-gathering functions.

So why not have it there?

*This is a hint on where my thoughts are headed with this whole line of research. I may end up writing my own aggregator if I can't find one that does what I think I want it to.

Posted by: Ted at 05:18 AM | category: SciTech
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In part one we saw how easy it is to create a PDA compatible version of your blog. It only takes a few minutes, and once complete you donÂ’t have to do anything special, because it updates automatically every time you post.

In this part, IÂ’ll go over the steps needed to download your blog (or other PDA friendly web content) into your PDA. ItÂ’s pretty easy too.

(in the extended entry) more...

Posted by: Ted at 06:10 AM | category: SciTech
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The upside is that I've found simple instructions on how to make a PDA-compatable version of your blog.

If you don't recognize the term, PDA stands for Personal Digital Assistant, and refers to that group of handheld devices like the Palm Pilot, the iPAQ Pocket PC, Blackberry and many others. Basically, they're PC's that fit into your pocket. I recently got one, and love it to death.

Why in the world would you want to do a PDA-friendly version of your blog? Well, some of us out in the world are techno-junkies (not me) and some of us just don't have time to surf to all the places we'd like to each and every day (uh, that would be me). So by downloading your blog to our PDA's every day or two, we can benefit from your wisdom and insight whenever we have a moment or two to spare.

First I'll explain the steps to make your blog PDA friendly, then in part two I'll show those who have PDA's how to get this great blog content downloaded to your wee beastie. It's all in the extended entry. more...

Posted by: Ted at 07:34 AM | category: SciTech
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1 Hey, that was EASY BEEZY! Thanks!

Now you'll have to tell me whether or not you like it, since I don't have a PDA. )

Posted by: Emma at September 01, 2004 01:51 AM (MAdsZ)

2 Sadly, I don't use MT. I've been happy with pMachine so far, except for a couple minor quibbles. I wonder if anyone has done something similar (to your post, I mean) for my software. I'm too tired to google, though.

Posted by: buckethead@perfidy.org at September 03, 2004 01:30 AM (jHXik)

3 Done! Thanks for the hard work.
Update on VT Sounding Rocket project is in the works.

Posted by: chris at September 06, 2004 05:38 PM (zH1Gw)

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Microsoft has been awarded a patent for using human skin as a power conduit and data bus.

Posted by: Ted at 05:19 AM | category: SciTech
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It's a standard Hollywood special effect: the towering wall of water bearing down on the ship. Such 'rogue waves' do exist and have been documented, but until recent studies by satellites in orbit, scientists didn't realize that they're far more common than thought.

"Two large ships sink every week on average, but the cause is never studied to the same detail as an air crash," says Wolfgang Rosenthal of the GKSS Forschungszentrum GmbH research center in Germany. "It simply gets put down to bad weather."

A significant handful of these sunken ships -- about 200 over the past two decades -- are supertankers or large container ships, according to a statement explaining Rosenthal's new research.

The cause for most of the mishaps is a mystery, but so-called rogue waves as tall as 10-story buildings are believed to be the major culprit in many cases.

The data were collected by the European Space Agency's twin spacecraft ERS-1 and 2, which employ a technique called synthetic aperture radar to measure wave height.

In the three weeks of satellite data, researchers found 10 waves in various parts of the world that were more than 82 feet (25 meters) high. That added a global perspective to information collected from various oil platforms. (A radar device on the North Sea's Goma oilfield counted 466 rogue waves over 12 years.)

Posted by: Ted at 06:11 AM | category: SciTech
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1 Ted, you really should subscribe to Discover. You've mentioned both the space elevator and rogue waves one month after articles on both subjects were published.

Posted by: Victor at July 26, 2004 11:07 AM (L3qPK)

2 Story of my life: day late and a dollar short.

Posted by: Ted at July 26, 2004 03:48 PM (ZjSa7)

3 There was a big article on rogue waves in New Scientist too.

But the "two large ships a week" has gotta be wrong. No way in hell. Even two a year seems high.

Posted by: Pixy Misa at July 27, 2004 02:57 AM (kOqZ6)

4 I haven't heard any screaming from maritime insurers about that either. If that were true, you'd think that insurance rates would be sky-high, which would make shipping rates soar as well. Then again, it's a big planet with lots of water...

Posted by: Ted at July 27, 2004 06:21 AM (blNMI)

5 I think there was a documentary on this called "The Day After Tomorrow" (now showing at a second-run theater near you...)

Posted by: Susie at August 01, 2004 12:14 PM (11RPa)

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That's the estimated age of the dinosaur fossile bought at an auction in New York, according to the new owner.

More than 60 million years after the triceratops dinosaur roamed what is now Montana, its horn went to 6-year-old Eamon Rush for $550 at a Park Avenue auction.

Although the tip of Eamon's horn was rebuilt by a human hand, he was thrilled with his purchase. The Manhattan boy planned to bring home the dinosaur horn for the archaeology club he started with a classmate.

It was a bargain for Lot 69, offered at an estimated value of $1,500 to $2,000 by Guernsey's at its "Dinosaurs & Other Prehistoric Creatures" sale.

On Thursday afternoon, Eamon showed up on Park Avenue in a bright tie-dyed top, so when he shot up with his paddle to signal his bid, everyone noticed. And the adults held back higher bids so the 6-year-old could win.

Posted by: Ted at 11:40 AM | category: SciTech
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President Bush wants to return to the moon and put a man on Mars. But scientist Bradley C. Edwards has an idea that's really out of this world: an elevator that climbs 62,000 miles into space.

Edwards thinks an initial version could be operating in 15 years, a year earlier than Bush's 2020 timetable for a return to the moon. He pegs the cost at $10 billion, a pittance compared with other space endeavors.

"It's not new physics — nothing new has to be discovered, nothing new has to be invented from scratch," he says. "If there are delays in budget or delays in whatever, it could stretch, but 15 years is a realistic estimate for when we could have one up."

Posted by: Ted at 07:44 AM | category: SciTech
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Paleontologists have announced the discovery of a previously unknown species of whale that lived 14 million years ago in a sea that covered what is now eastern Virginia.

The whale is the oldest known member, by at least 3 million years, of a group that today includes the giant blue and fin whales, scientists said. It was several feet longer than any other whale in its time, said Alton Dooley, a museum paleontologist.

The discovery suggests that almost-modern-looking whales lived considerably further back in time than scientists realized.

Posted by: Ted at 08:19 AM | category: SciTech
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Code Blue for Mr. Ashcroft! Yet another group of pesky civilians display a little technological prowess, so it's time to warm up the black helicopters and suppress a few hobbyists in the name of Homeland Security.

Would you believe a flying radio-controlled scale model of the B-52? This incredible beastie weighs 300lbs and is powered by 8 tiny turbines.

There are photos and take-off & flyby video clips here, and golly gee, here's a link to the British manufacturer of those nifty little hobby turbine engines.

Kudos to Bill S, who pointed this out on one of my rocketry email lists.

Posted by: Ted at 05:20 AM | category: SciTech
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We have the Dish Network in our house instead of cable. Recently, they've added the Sirius Satellite Radio channels to the lineup. Their 70's channel is exactly that - everything 70's. So you hear Marvin Gaye and Stevie Wonder, mixed in with the BeeGee's and Donna Summer, mixed in with Ted Nugent and the Doobie Brothers. I like it much better than the mix offered on the old channels, which had 70's Soul and 70's Rock and 70's Pop and...

There are 100 channels, and several of them are pretty specialized, but so far I'm giving this a thumbs up. Doesn't hurt that it's included in our basic package either.

Posted by: Ted at 05:37 AM | category: SciTech
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Over at Transterrestrial Musings, Andrew Case talks about building cities on the oceans, and some serious plans to make seasteading a reality. This is definitely worth checking out, with plenty of interesting links to follow.

Absurd idea to start your own country, you say? You might want to tell the residents of the Principality of Sealand, I think they'd disagree.

Posted by: Ted at 09:57 AM | category: SciTech
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Hoping to learn more about undersea volcanoes, scientists sent a camera-equipped submarine down to take a look. They got more than they bargained for, witnessing a deep-sea eruption.

Posted by: Ted at 05:16 PM | category: SciTech
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I asked about PDAÂ’s back in this post, and got plenty of good advice and ideas in the comments. Thanks to everyone who responded.

I wound up getting an iPAQ Pocket PC, model 1945, and so far I love it!!! Originally developed by Compaq, now the iPAQ’s fly under the Hewlett-Packard banner (my parents both retired from HP – Yay!). This is a true PC, shrunk down to pocket size.

The 1900 series of iPAQÂ’s are the low-end of the line, which doesnÂ’t mean a damn thing when you look at the features built in. The processor is as fast as the two year old PC on my desk, and thereÂ’s as much on-board RAM as my PC too. The iPAQÂ’s run the Windows CE operating system, which was a positive thing in my eyes. They have MSWord and Excel built in, so I donÂ’t have to convert files to and from a proprietary format like I would have had to if I'd have gotten a Palm. It also has Internet Explorer, Outlook and PowerPoint built in. The color screen is small, but clear and bright and sharp. It's also oriented in portrait mode rather than landscape, so some programs rearrange things to make better use of the space.

Besides the PC-style software, there's a very nice Contact List function, which is like a super address book, the ability to build to-do lists - called Task Lists - including setting alarms to remind you before tasks are due. Appointments and calendars are easy to set up and use, and you can check your schedule by the day, week, or month, plus there's a built-in perpetual calendar.

And that's not all. The "notes" function reads your scribbles to jot quick notes or draw a diagram, and a simple one-button voice recorder lets you save verbal messages as .wav files.

Plus - yep, there's more! - the 1945 has built-in bluetooth wireless technology. I'm not entirely up to speed on bluetooth yet, but it's similar to WiFi and allows you to automatically connect to other bluetooth devices, like a cell phone, to access the internet, email or another PC.

A single expansion slot is available for Secure Disk media, and besides memory cards (generally costing a little less than fifty cents per MB), there are many other attachments such as true WiFi cards, digital cameras, GPS modules, etc. Some of the other nifty things available are "real" keyboards and even solar panels that will power your iPAQ if you're working outside.

Input can be done by either tapping out on a little virtual keyboard on the screen (which isn't as horrible as I thought it might be), or there is handwriting recognition software already installed. The best option, especially if you have a lot of input to do, is to type it into your desktop PC and then transfer it to the iPAQ.

The iPAQs are designed to be used with your desktop PC as a team. By hooking up the included USB cable, you can synchronize the two, which will update both PCs with the most recent versions of data from each. Battery life is supposed to be about four hours of actual use, but I haven't come close to that because at home and work I keep it plugged in to the AC converter (included), which also keeps the battery charged.

I picked up a copy of "iPAQ for Dummies", which I highly recommend. It's not all applicable for my situation, and a lot of it is stuff I'd already figured out on my own, but it's full of simple explanations and suggestions for ways to get the most out of the iPAQ.

I've discovered several resources online for downloadable programs. There's an awful lot of freeware and shareware, and even professional titles range from a few bucks up to about thirty dollars. The iPAQ has an active user community on the 'net, with forums where you can post questions and receive help quickly. An example of the freeware available are programs that allow you to turn your iPAQ into a programmable universal remote. Yes, it'll work on TV's and VCR's, but also on slide show projectors and presentation media controllers.

One of the freeware programs I've loaded onto my iPAQ is the eBook Reader from Microsoft. I've never tried eBooks before, but to my surprise I really like the implementation. The text is far more readable than I anticipated, and there are a few really good libraries of free eBooks to download, besides the popular bestsellers and such you can purchase from Amazon (among others). You can add annotations and bookmarks and attach notes, kinda like writing in the margins as you read. It's pretty neat.

So what am I reading? A lot of the free volumes are classic literature, like Shakespeare. I've read some Edgar Allen Poe, am currently enjoying Turn of the Screw by Henry James, and I have Percival Lowell's Mars on deck. In the future there will be some Sherlock Holmes, John Carter of Mars and Tarzan, and others less mysterious and adventerous. I'll find the links (they're on my home PC) and post them in the near future for anyone interested.

Two warnings about these electronic beasties. First, you'll only get out of them what you put into them. If you make it a point to use it consistantly, then it'll be more useful to you when you really need it. Which means you have to remember to have it with you. It'll take some time to get all your information entered and organized the way you want it, but it's worth the effort. This is no different than using a paper-based system like the Geodex or Dayrunner.

Second, buying the iPAQ is only the beginning of the expenses. You'll almost immediately want to buy a case for yours, to protect it. There are thin plastic overlays for the screen, to keep you from scratching it up as you tap (same as a mouse click on a PC) and write on it with the stylus. I haven't needed to yet, but they sell spare stylus in multipacks, so apparently they break or get lost easily. And of course, there are the memory cards. The cards are your 'hard drives', because everything on the iPAQ resides in memory. I expect that I'll eventually get a few memory cards, one for work-related stuff, one for personal stuff (including eBooks and rocketry files, and maybe one dedicated to music files so I can use the iPAQ like an iPod.

I didn't mention games at all, because I'm not a big computer game player. The iPAQ comes with Jawbreaker and Solitaire, and versions of Minesweeper, Tetris, and almost everything else under the sun are available for download. The screen is small but sharp and clear, so I expect game play to be acceptable.

I'm pretty level-headed when it comes to new technology, I really have to be able to justify it to myself before getting a new toy. If you have the need for one of these, I highly recommend it. If you don't have the need, you'd probably find something for it to do, because it's that versitile.

Posted by: Ted at 05:51 AM | category: SciTech
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Just before I left the Air Force, the unit I was assigned to purchased Geodex systems for every officer. Geodex was similar to DayRunner or File-o-Fax and was basically a notebook full of the myriad details that you needed for life.

Alas, Geodex is no more. This truly sucks because it was one of those instances where the implementation lived up to the promise of the original concept.

Anyways, one officer I worked with didnÂ’t want his Geodex because he already had a system that worked for him, so he gave the whole thing to me to use. I loved it and used it for several years, finally giving it up when I could no longer get the annual refills needed to keep it current.

Since then, IÂ’ve relied on post-it notes, various lists jotted here and there and numerous notebooks and steno pads. Nothing very formal, nothing very organized, but good enough to get by with.

Obviously, I’m not one of those people who runs right out to get the latest and greatest technology. I still don’t have a cell phone, let alone a PDA. A PDA always fell under the category of ‘nice to have’ – if I ever had a few hundred dollars to spare. Being married with teenagers in the house, you can imagine how often that happens.

GPS was kind of interesting, but for me the main idea would be using it to triangulate the position of a rocket when it landed, hopefully cutting down the time spent searching for rockets that come down out of sight. The kids and I have always used the human method, where one stays back and marks a distant landmark, then uses hand signals to direct the searchers to the correct line to follow. It works better than guess-and-by-golly, but itÂ’s far from perfect.

GPS always fell into the ‘nice to have’ category too, but my sensible (and better) half is starting to convince me that it’s time to modernize all-around (hint: when convincing me, it helps to use a bigger 2x4).

I’m feeling the need for a PDA, and Garmin makes a model – the Garmin iQue 3600 – that combines the features of a good PDA with everything I need in a GPS system. The damn thing is almost $500.00, but Liz made the point that with the amount of money I’m risking per rocket launch nowadays (motor parts, electronics, chutes, etc), that if the GPS helps me locate a rocket or two that I might otherwise lose, then it’s practically paid for itself right there. Like I said, she’s the sensible member of the team.

Still with me? Cool. This is a long, meandering way to finally get around to asking if you have a PDA or GPS, and if so, what it is and how it works for you? What do you like about it? What do you hate about it? What would you change about it?

DonÂ’t have one? Why not? IÂ’m curious and collecting experiences and opinions here. Thanks.

Posted by: Ted at 11:33 AM | category: SciTech
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