Friday, January 11, 2008

Army, Marines Work on Humvee Successor

Army, Marines Work on Humvee Successor:
"The Army and the Marines are pursuing funding and agreements that would start a new program in 2007 to replace the High-Mobility Multipurpose Wheeled Vehicle with a more survivable vehicle, officials from both services said last week.
Throughout the war in Iraq, the Army has rushed to shield thin-skinned humvees with more armor while trying to improve existing protection and producing more up-armored vehicles. Eventually, the service sought an upgraded version of the humvee that added more meat to the chassis and the suspension to withstand the weight of add-on armor kits.
For future conflicts, the Army and Marines are looking to replace the vehicle that ousted the military Jeep in 1985. The services have discussed the possibility for quite some time, but they haven’t always been on the same page."


Prototype for military Hummer replacement from Oshkosh Truck and Northrop Grumman: http://crave.cnet.com/8301-1_105-9848355-1.html?part=rss&tag=feed&subj=Crave
. . . the Defense Department's decision to buy 6,800 mine-resistant ambush-protected vehicles (MRAPs) as "interim" replacements to armored Humvees may mean that troops won't see the new JLTV until 2012, according to National Defense.


The Joint Light Tactical Vehicle is a U.S. Army, USSOCOM, and U.S. Marine Corps program to replace the current HMMWV with a family of more survivable vehicles and greater payload. - http://en.wikipedia.org/wiki/Joint_Light_Tactical_Vehicle


The USMC specs for this vehicle are listed here: http://www.globalsecurity.org/military/systems/ground/jltv.htm

Many of the prototypes are listed at: http://www.defense-update.com/products/j/jltv.htm

home page for the Joint Light Tactical Vehicle (JLTV)- http://contracting.tacom.army.mil/majorsys/jltv/jltv.htm

At least 18 other manufacturers are contributing elements or developing prototypes to compete for the next-generation of lightweight vehicles that will replace the Humvee, including General Tactical Vehicles, Hadas, Intermap Technologies, Lockheed Martin, Magna Powertrain, Mistral, ODF Optronics, Precision Remotes, Remote Reality, Reynolds Fasteners, Robertson Aviation, Rockwell Collins, Tai, Tesla Industries, and VSE, according to Defense News.

The companies agreed that if they are selected for the JLTV program, Northrop Grumman's Mission Systems sector will be the primary contractor and systems integrator, while Oshkosh Truck's Defense Group will be responsible for designing, engineering, and manufacturing the vehicle

Wednesday, January 9, 2008

A new Heat Engine could compete with solar cells.

There are a lot of technologies hoping to reduce some of our oil dependency in the next few years. Here's one that may work quite well in Arizona.
Super Soaker Inventor Cuts Solar Power Costs - Johnson Thermoelectric Energy Conversion System - Heat Engine - Popular Mechanics:
"Solar energy technology is enjoying its day in the sun with the advent of innovations from flexible photovoltaic (PV) materials to thermal power plants that concentrate the sun’s heat to drive turbines. But even the best system converts only about 30 percent of received solar energy into electricity—making solar more expensive than burning coal or oil. That will change if Lonnie Johnson’s invention works.
. . .
Johnson, a nuclear engineer who holds more than 100 patents, calls his invention the Johnson Thermoelectric Energy Conversion System, or JTEC for short. This is not PV technology, in which semiconducting silicon converts light into electricity. And unlike a Stirling engine, in which pistons are powered by the expansion and compression of a contained gas, there are no moving parts in the JTEC. It’s sort of like a fuel cell: JTEC circulates hydrogen between two membrane-electrode assemblies (MEA). Unlike a fuel cell, however, JTEC is a closed system. No external hydrogen source. No oxygen input. No wastewater output.

“It’s like a conventional heat engine,” explains Paul Werbos, program director at the National Science Foundation, which has provided funding for JTEC. “It still uses temperature differences to create pressure gradients. Only instead of using those pressure gradients to move an axle or wheel, he’s using them to force ions through a membrane. It’s a totally new way of generating electricity from heat.”

The bigger the temperature differential, the higher the efficiency.
. . .
This engine, Johnson says, can operate on tiny scales, or generate megawatts of power. If it proves feasible, drastically reducing the cost of solar power would only be a start. JTEC could potentially harvest waste heat from internal combustion engines and combustion turbines, perhaps even the human body. And no moving parts means no friction and fewer mechanical failures."

Note that Hydrogen molecules really like to escape - that may drive the housing cost up, and of course mirrors take up space and must be aimed carefully. These are manageable challenges as long as people are willing to pay enough. With all the completion for our energy dollars - that may be the key point.

Computerized Voting Machine Problems

If I was charged with installing computerized voting machines, I would start with "fault tolerant" servers and jam-proof thermal printers. These items have been available for decades, but too many people just run to Radio Shack or search the Dell & Gateway web sites for PC based solutions. Once we've got reliable hardware, then it is time to tackle the real problem - verifiable, fraud & hacker-proof software.
Voting Machines - Elections - Ballots - Politics - New York Times:
"As the primaries start in New Hampshire this week and roll on through the next few months, the erratic behavior of voting technology will once again find itself under a microscope. In the last three election cycles, touch-screen machines have become one of the most mysterious and divisive elements in modern electoral politics. Introduced after the 2000 hanging-chad debacle, the machines were originally intended to add clarity to election results. But in hundreds of instances, the result has been precisely the opposite: they fail unpredictably, and in extremely strange ways; voters report that their choices “flip” from one candidate to another before their eyes; machines crash or begin to count backward; votes simply vanish."

Elections are often won by just a few votes. Voters deserve to know that their votes are actually being recorded & counted accurately, while still preserving their privacy. This is important and doesn't seem to be getting enough serious attention from the responsible officials.
Having said that, I have to admit that Arizona's voting machines seem to work very well. We mark a paper ballot that can be used for recounts and scan them ourselves with a machine that can accept the ballot just about any way you can insert it. (At smaller sites we just place the ballot in a box and it is counted manually.) Results are tabulated by PCs that pass them on to the appropriate offices - apparently with few problems.

Referring to the description below, there is nothing inherently wrong with having a powerful processor and Windows in each voting booth, but there are a lot of vendors who could provide something that was both simpler, and harder to hack. Dedicated processors presenting a list and recording the choice(s) aren't exactly new or high-tech. Such processors (and their OSes) have the advantage of not being primary targets of the hacker community. Made in quantity, dedicated processors can be provided at very low cost.
Storing votes on flash-memory cards isn't an awful idea, but I wonder if those cards have clearly readable & unalterable serial numbers that can be traced back to a specific voting booth. I also wonder about the amount of (volunteer) labor involved in collecting these cards, and I wonder how they determine that some of them aren't lost or altered on the way to the election headquarters.
Networking the machines would enable the election headquarters to produce preliminary counts quickly, and the cards or paper tapes could be queried in the event of a recount (of course now you need a secure network and confirmation that every packet is delivered).
Paper tape printers are used to monitor security systems and scientific instruments unattended for long periods of time - there ought to be some useful products available that don't jam. Printing the vote in a small font doesn't make sense if the voter is to verify it. The voting screen should point an arrow to it and ask "is this correct?" - before dismissing the voter ("Thank you for voting & have a nice day"). Alternatively, the voter could be required to press the window over the paper tape to record each vote (give them a nice visual and audible feedback when this works - like a flashing light and a chime).
"IN THE LOBBY OF JANE PLATTEN’S OFFICE in Cleveland sits an AccuVote-TSX, made by Diebold. It is the machine that Cuyahoga County votes on, and it works like this: Inside each machine there is a computer roughly as powerful and flexible as a modern hand-held organizer. It runs Windows CE as its operating system, and Diebold has installed its own specialized voting software to run on top of Windows. When the voters tap the screen to indicate their choices, the computer records each choice on a flash-memory card that fits in a slot on the machine, much as a flash card stores pictures on your digital camera. At the end of the election night, these cards are taken to the county’s election headquarters and tallied by the GEMS server. In case a memory card is accidentally lost or destroyed, the computer also stores each vote on a different chip inside the machine; election officials can open the voting machine and remove the chip in an emergency.
But there is also a third place the vote is recorded. Next to each machine’s LCD screen, there is a printer much like one on a cash register. Each time a voter picks a candidate on screen, the printer types up the selections, in small, eight-point letters. Before the voter pushes “vote,” she’s supposed to peer down at the ribbon of paper — which sits beneath a layer of see-through plastic, to prevent tampering — and verify that the machine has, in fact, correctly recorded her choices."

We need to seriously consider whether this is appropriate technology for something as important as voting.
"THE QUESTION, OF COURSE, is whether the machines should be trusted to record votes accurately. Ed Felten doesn’t think so. Felten is a computer scientist at Princeton University, and he has become famous for analyzing — and criticizing — touch-screen machines. In fact, the first serious critics of the machines — beginning 10 years ago — were computer scientists. One might expect computer scientists to be fans of computer-based vote-counting devices, but it turns out that the more you know about computers, the more likely you are to be terrified that they’re running elections.
This is because computer scientists understand, from hard experience, that complex software can’t function perfectly all the time. It’s the nature of the beast. Myriad things can go wrong. The software might have bugs — errors in the code made by tired or overworked programmers. Or voters could do something the machines don’t expect, like touching the screen in two places at once."

Voting machines are paid for with public money and entrusted with a sacred right - the public should be able to determine that they do the job correctly. Voting machines and their source code should be in the public view - open source for both the hardware and software. This enables the public to ensure vendors have done their job. Done well, open source software is more secure than proprietary, because it is reviewed and revised from many more viewpoints.
". . . the truth is that it’s hard for computer scientists to figure out just how well or poorly the machines are made, because the vendors who make them keep the details of their manufacture tightly held. Like most software firms, they regard their “source code” — the computer programs that run on their machines — as a trade secret. The public is not allowed to see the code, so computer experts who wish to assess it for flaws and reliability can’t get access to it. Felten and voter rights groups argue that this “black box” culture of secrecy is the biggest single problem with voting machines. Because the machines are not transparent, their reliability cannot be trusted."

. . . "ES&S and Sarasota correctly point out that Jennings has no proof that a bug exists. Jennings correctly points out that her opponents have no proof a bug doesn’t exist. This is the ultimate political legacy of touch-screen voting machines and the privatization of voting machinery generally. When invisible, secretive software runs an election, it allows for endless mistrust and muttered accusations of conspiracy. The inscrutability of the software — combined with touch-screen machines’ well-documented history of weird behavior — allows critics to level almost any accusation against the machines and have it sound plausible. “It’s just like the Kennedy assassination,” Shamos, the Carnegie Mellon computer scientist, laments. “There’s no matter of evidence that will stop people from spinning yarns.”"

Tuesday, January 8, 2008

Osprey doing well in Iraq

Making a success of the Osprey says a lot about the persistence of the Marines Corps.
Osprey in Iraq: No mishaps | Crave : The gadget blog:
"The Pentagon hasn't been saying much about what's up with the Osprey in Iraq. That could be because it doesn't want to jinx what seems to be, after the first three months of deployment, a success story for the long-controversial tilt-rotor aircraft.
. . .
Since arriving at Al Asad Airbase last fall, the 10 MV-22 Ospreys of Marine Medium Tiltrotor Squadron 263 have accumulated more than 1,600 hours of flight time, carrying hundreds of passengers--from ground troops to VIPs--and thousands of pounds of cargo "without a mishap or even a close call," according to a story last week in The Dallas Morning News. That's no small feat for an aircraft that critics cited time and time again for its checkered history of fatal crashes
. . .
From day to day, anywhere from 50 percent to 100 percent of the Ospreys are ready to fly, the paper reported. That could be a sign of genuine and worrisome mechanical problems, or maybe just overly protective policies that keep airworthy Ospreys grounded."

The Osprey does permit the Marines to respond rapidly to places much further away. (NOTE: this link may misstate the range - some sources cite 200Nmi for the USMC version and 500Nmi for the Air Force version with extra fuel tanks, but there are other sources for the 2,100Nmi figure.)
V-22 Osprey Aircraft:
"The CH-46, which the Osprey is set to replace, has a range of 160 nautical miles, while the Osprey’s range is 2,100 with one refueling. This increased range will get Marines to the battlefield faster and from further away."

V-22 Osprey Tilt-Rotor Aircraft:
"The V-22 has the ability to carry considerably larger payloads much greater distances than the CH-46 helicopter that it will replace. The V-22 could carry three times the payload, or fly five times the range of the CH- 46 (4,000 lbs and 132 nmi for the CH-46 respectively). While it will take off and land vertically like a helicopter, the V-22 will fly twice as fast. While the V-22's range, speed and payload capabilities are most frequently touted, the Bell/Boeing contractor team reports the Osprey exhibits the following survivability traits: The V-22 is up to 21 times less vulnerable to small arms fire than current helicopters, it is 75 percent quieter than helicopters, and it is the only U.S. tactical transport aircraft with designed-in radiological, biological, and chemical warfare protection."

You expect teething problems with a first of it's kind machine, but 25 years in development is a bit much.
V-22 Osprey Tilt-Rotor Aircraft:
"Begun in FY1982 by the Army and now funded in part by the Air Force, the V-22 has been primarily a Marine Corps program funded by the Navy Department. The aircraft is produced by Bell Helicopter Textron and Boeing Helicopters, with engines produced by Rolls-Royce/Allison. Flight testing and operational evaluation of pre-production V-22s began in early 1997, with procurement of production aircraft approved in April 1997."

VTOL - Wikipedia, the free encyclopedia:
"The V-22 Osprey is the world's first production tiltrotor aircraft, with one three-bladed proprotor, turboprop engine, and transmission nacelle mounted on each wingtip. The Osprey is a joint service, multimission, military tiltrotor aircraft with both a vertical takeoff and landing (VTOL) and short takeoff and landing capability (STOL). It is designed to perform missions like a conventional helicopter with the long-range, high-speed cruise performance of a turboprop aircraft. The FAA classifies the Osprey as a model of powered lift aircraft."

The effort to eliminate consumer recording technology

More comments on a previous topic. If Dvorak is correct, then this industry needs some consumer oriented competition.
RIAA Goes After "Personal Use" Doctrine - Columns by PC Magazine:
"Suing customers for ripping CDs is an attack against fair use that, if successful, would reverse legal precedents and give some momentum to the slow effort to eliminate all consumer recording devices. This would include VCRs, CD burners, DVD burners, DVRs, and even copying machines.

While the likelihood of any of this happening is low, the various industry trade associations, with the probable exception of the consumer electronics manufacturing associations, are praying for it. The RIAA and the MPAA in particular are grasping for some way to make it difficult or impossible for us to reproduce copyrighted content, even for our own use.

Instead of finding some way to benefit from easy copying, these two associations and the companies they represent honestly believe that clogging the American legal system with John Doe nuisance lawsuits will somehow put an end to piracy—the definition of which is ever growing."

Friday, January 4, 2008

Microsoft Office 2003 - SP3 blocks common formats

» Microsoft hoses user data - again! | Storage Bits | ZDNet.com:
"Will Microsofties ever learn?
Without warning the Microsoft Office SP3 update blocks over a dozen common document formats, including many Word, Powerpoint and Excel documents. Install the update and you can’t open the files."

I think this is going to affect lots of people. Many folks have used Word 6.0 as the default save format for years because others could read those documents. We're going to have to open & Save As all of our documents before upgrading to SP3.

Frankly, I might decide that this is time to do all my personal work in Open Office which allows us to save as PDF for anyone to read.
. . . here is the complete list of blocked Word formats from the MS article.

Blocked file format:

* Word 11 saved by Word 12
* Word 2004 for Macintosh
* Word 11 for Windows
* Word 10 for Windows
* Word 9 for Windows
* Word X for Macintosh
* Word 2001 for Macintosh
* Word 98 for Macintosh
* Word 97 for Windows
* Word 95 Beta
* Word 95 RTM
* Word 6.0 for Macintosh
* Word 6.0 for Windows
* Word 2.x for Windows Taiwan
* Word 2.x for Windows Korea
* Word 2.x for Windows Japan
* Word 2.x for Windows BiDi
* Word 2.x for Windows
* Word 1.2 for Windows Taiwan
* Word 5.x for Macintosh
* Word 1.2 for Windows Korea
* Word 1.2 for Windows Japan
* Word 4.x for Macintosh
* Word 1.x for Windows
* All older formats

Update January 9, 2007:
Microsoft admits Office 2003 'mistake' :
"Microsoft updated the advisory on Friday evening and included links to four downloadable updates that would unblock the file formats. One update was provided for each of Word, Excel, PowerPoint, and CorelDraw file types.
The downloadable updates should prove to be much easier to implement than a manual registry fix, details of which were retained in the updated advisory.
The software giant also provided four downloadable updates to reblock the file formats.
Shaffner said: 'For IT administrators, we recommend that they use the (registry) fix that was there before. For end users, if they frequently use the older formats, this (the downloadable update) is the way.' He suggested that if users did not frequently use the older formats, they should apply the update."

Thursday, January 3, 2008

Credit Card refunds owed for foreign currency charges

FYI -
KFYI - "The Valley's Talk Station":
"If you've bought anything in another country using your credit card, you may be in for a refund. A recent settlement of a class-action lawsuit against credit card companies has resulted in the credit card companies agreeing to reimburse customers for overcharges in currency-conversion fees. That is, when your purchase – in francs, pounds, lire, euros, or yen, for example – was converted to dollars, the banks charged high, and undisclosed, conversion fees which the lawsuit settlement revealed were a ripoff. As a result of settling the 2001 lawsuit, the companies agreed to make $336 million available to pay customers back for those fees.

If you have all of your receipts from those purchases, you can use those to total up how much is owed you in currency conversion fees. Otherwise, you can submit the claim for the standard amount of $25.

Arizona Attorney General Terry Goddard says some consumers have thrown out the notices, fearing they were phony. Goddard says they are legitimate, as long as they came from P.O. Box 290, Philadelphia, PA. He warns there are copycat mailings out there trying to glean personal and financial information such as your birthdate, Social Security number, bank account numbers, etc. He says any solicitation that seeks any of that information should be ignored."
We're so concerned about privacy fraud (with cause!) that sometimes we miss out on legitimate opportunities.

A step to far - consumer rebellion likely

Download Uproar: Record Industry Goes After Personal Use - washingtonpost.com:
. . .
"The Howell case was not the first time the industry has argued that making a personal copy from a legally purchased CD is illegal. At the Thomas trial in Minnesota, Sony BMG's chief of litigation, Jennifer Pariser, testified that 'when an individual makes a copy of a song for himself, I suppose we can say he stole a song.' Copying a song you bought is 'a nice way of saying 'steals just one copy,' ' she said.

But lawyers for consumers point to a series of court rulings over the last few decades that found no violation of copyright law in the use of VCRs and other devices to time-shift TV programs; that is, to make personal copies for the purpose of making portable a legally obtained recording.

As technologies evolve, old media companies tend not to be the source of the innovation that allows them to survive. Even so, new technologies don't usually kill off old media: That's the good news for the recording industry, as for the TV, movie, newspaper and magazine businesses. But for those old media to survive, they must adapt, finding new business models and new, compelling content to offer.

The RIAA's legal crusade against its customers is a classic example of an old media company clinging to a business model that has collapsed. Four years of a failed strategy has only 'created a whole market of people who specifically look to buy independent goods so as not to deal with the big record companies,' Beckerman says. 'Every problem they're trying to solve is worse now than when they started.'"

Consumers almost universally see this as overreaching - many people copy their personal music for use at work & in their cars - they still own the CD which is sitting untouched at home while they listen to it's content somewhere else. If the industry succeeds in getting us to pay each time we listen to a song, they'll lose many customers (and lots of money) to other media.