Friends of Jhai asks: "An NGO called Jhai Foundation, which is building Internet learning Centers in Laos has enlisted Computer Hall-of-Famer Lee Felsenstein to build a cheap, locally assembled, wirlelessly networked PC and communications system. The current details of the machine are here and the application is here. They are looking for similar systems under way that they might work with or which might be ready for deployment. Anyone have any URL's we can check out?" Great! Now you can get your computing and exercising done at the same time! What other types of technology have people managed to adapt to man-power as opposed to boring ol' AC outlets?

AJ-perler asks: "About 2 years ago 'Metabrowsers' were the new hot browsing tools that addressed the trend of users frequently browsing specific sites. Business 2.0 ran an article late 2000 about the problems metabrowser companies faced. I think metabrowsers are interesting and useful, but I haven't seen mention of them for a long time. Do any Slashdot readers use these few that have survived? Is the general public web savvy enough, even today, for this type of browsing?"

You'll remember last week, I asked for recommendations of the Best Websites for developers. This was a -great- thread and in the story, I mentioned that I was planning on doing the same regarding books this week. So here it is. What do you, the slashdot reader consider seminal works? What would you consider great introductions to technical topics? If you are interested, check it out...

stercor asks: "I've been considering random number generators made with easily-available materials. Living in Oregon might suggest photoelectric cells and rain. Or something to do with slugs (generation rate IS a factor, however) My question is what other off-the-wall shelf hare-brained brilliant ideas can other Slashdot readers come up with? Please limit ideas to ones that would actually work." When I was younger, I was always intrigued by the rigs used by most State Lotteries. You know the ones: dump balls into a chamber, throw in a fan/vacuum combination to agitate the balls and to allow a random one to shoot thru a tube when the button was pressed (basically, a high tech version of your average BINGO machine). Has anyone else seen or built a contraption that does something similar but in a weird, roundabout or weird and roundabout way?

termigator asks: "I have a private home network that has a Windows XP system on it (I know, the horrors, but it allows my wife to do some of her work at home). With recent discussions about DRM and the Microsoft EULA (which allows Microsoft to autodownload software), I decided to block all traffic on my Linux firewall from Microsoft systems (207.46.0.0/16) to the Windows XP box. This morning there was trapped traffic from Microsoft, after my wife was doing some work on the XP system the day before. I talked with my wife, and I could not determine what she could have done to cause the traffic to happen. Can anybody provide some insight?" Why can't Microsoft be up front about when it tries to phone home? Of course, phoning home isn't the big problem with most people, it's the fact that they try to be sneaky about it for certain tasks. With Microsoft pushing XP into the home, consumers should definitely be wary about storing private information on such systems until Microsoft provides some answers.

testYourGUIS asks: "I work with a company that tests consumer and business software for various venues. One of the programs we rely on heavily is called Rational Visual Test, which is a VB-like compiled programming language that works directly with Windows API to simulate mouse clicks, text entry, menu pulldowns, and so on. We use them to stress-test various applications, collect the results, and then send the vendors a spreadsheet showing what we found. Recently, pressure has started to produce the same results on Mac OS X and possibly Linux applications. I was wondering if anyone knew of such software that works on Mac OS X, and how to go about doing this for Linux?"

macemoneta asks: "Are there any notebooks available on the market that support (bootable) RAID (at least two 40GB+ drives as RAID0 and or RAID1)? While the rest of the components in 'desktop replacement' notebooks are quickly getting up to snuff, the hard drives are anemic in performance, capacity and reliability compared to desktops. Being able to use software RAID to create high performance meta devices and high reliability meta devices would really kick notebooks into high gear. Before anyone complains about size, weight, power and heat remember that notebooks have gone from 12 inch screens to 16 inch screens and 486 to P4M in the last few years. Most desktop replacement laptops use the batteries as a UPS, since they usually only last 90 minutes or less anyway."

An anonymous reader asks: "I am looking for ext2/ext3 expert. I have a small file (1395 bytes) that appears HUGE when runing ls -l (70368744179059 bytes [yes, that's 70 terabytes]). This causes a problem because tar wants to back up all those extra bytes. We have back ups of the file else where, but I'm afraid to delete it. When I remove it what is going to happen to the file system (Kernal version is 2.4.18 on i686). This seems to be a pretty bad math error on the part of the file system. This is a really weird error, but could just be the issue of a corrupted sector on the drive. Has anyone else seen this before and have any ideas as to whether such files can be recovered? Is this problem just a small glitch or an omen of an impending filesystem crash?

Dave asks: "I must us a Windows machine at work where I do web development and system administration. I have been looking for a "decent" editor to use on Windows, but thus far have come up short. GVim doesn't do it for me, on linux it's fine, but on Windows it isn't the most stable thing around. I've also tried Windows versions of MicroEmacs and Vile. What do other Slashdot users develop in when they must use a Windows machine?"

sonamchauhan asks: "I'd like advice on building (yes, building) my own low-res touchscreen. The reasons for 'build' instead of 'buy' are: 1) to have it sense pressure (pressure sensing is quite expensive) and 2) to have it sense multiple points of contact simultaneously (which is a useful thing). Back in 1985, researchers at U.Toronto built (PDF file) a touch-tablet (not a touch-screen) that fulfilled both requirements (pressure-sensitive and multi-touch) and used only basic electronics: lots of diodes, A/D convertors, etc. Some 17 years later, it should be possible to build a touch-screen using the same techniques (possibly using layers of transparent conductive and insulating paint for the sensor paths.) Any comments? Some other links: a Microsoft paper (PDF file) describing a touch sensor painted onto a mouse, a basic FAQ on current touchscreen technology, and a slashdot thread that discussed building touchscreens (these links don't address pressure or multi-touch though)."

nyx asks: "Recently, I was looking for some way to improve security on my linux boxes. I found few linux patches like grsecurity, LIDS (now also as Linux Security Module), Medusa DS9. I'm testing grsecurity (and it's ACLs) now and I'm quite satisfied with it, but I wonder, what are pros and cons of other solutions. Anybody tried them and can share his experience with us?"

Cory O. asks: "I was just wondering if any /.er had any experience either being an end-user or an administrator on a WaveRider 900MHz wireless system. There's a company in my community offering this service now, and since Mediacom is lost somewhere running fiber through a creek bed and may never get their cable modem service up and running, I was considering this as an alternative. Any issues with these that anyone knows of (ie. line of sight problems, bandwitdth, security, etc.?) You can also check out the company who's offering this service, Airolink.com"

CrazyDwarf asks: "I dug up and old system that my company was about to toss in the dumpster and decided to load Linux on it. My problem: the BIOS will not recognize more than 500 MB of the HDD. I don't have a CD-ROM for this PC. I was looking for a BIOS upgrade download, but AWARD wants me to buy it from some third party. If I could afford to buy it from them, I wouldn't be doing all this, I'd just get a CD-Rom and move on. Where are some good places for me to go find a free (no cost) download to upgrade my BIOS? I have been searching for an hour on Google and have not really found anything."

InspectorPraline asks: "I'm currently working on a cookbook that is intended to provide good food at a reasonable price - the kind of stuff you'd make before sitting down for a long coding session, with the occasional idea that would feed a LAN party. I've got some ideas I can put down, but the book would be quite thin, so I thought I'd put the call for submissions to Slashdot. I'm calling it 'The Open Source Cookbook,' and I'd release it under the GFDL, in PDF, ASCII text, and Word formats. Of course, I'd take submissions as comments here or via email. I'd 'publish' the book via the web once I got enough submissions to make the book at least about 40-50 pages in length or 30 recipes (whichever comes last), and as submissions came in I'd update the book. Anyway, I'm asking for submissions for the book, which could be recipes for dinners, lunches, even drinks. Two webpages that will serve as temporary homes for the project can be found here and here, and those addresses list my email as well as some submission guidelines. So, any ideas, folks?" Hey, if you ever wanted to share your favorite dishes with geeks around the world, this might be the way to do it. What great dishes have you prepared?

gwn asks: "I have just over 100 Compaq Armada 100s laptop purchased early in 2001. Over 60 have developed cracks in the lid just above the left hinge and at the front corners. I had one of these on a VP''s desk, no abuse, and it cracked. Compaq has denied any other reports of this with any other customer, just my problem they say. They have stopped giving me a hard time when I send these in for repair and they are repairing for free. This is still a royal pain in the rear and does cost me money. Lately, they started coming back with Compaq Notebook 100 labeled screens and it got me thinking they are running out of parts. It can't just be mine that are cracking. Does anyone else have a Compaq Armada 100s or Notebook 100 with cracking case problems?"

NightWhistler asks: "I've been hearing stories for some time now about digital modules that can be used inside normal photo camera's as a sort of 'digital film', effectively turning a standard camera into a digital one. If they exist and performance is good, I would love to get my hands on one of those babies... ;-) Has anyone actually seen one of these, or perhaps have experience with them?" There may have been one company that did this, but I think they went out of business, recently. I've always thought this was a neat idea, but is there really a market for this kind of modification?

NeoMagick asks: "I live in a rural town in the Pacific Northwest, and I'll soon be picking up a Shuttle system which will get mounted in the trunk of my car, and patched into probably an Alpine or Pyle in-dash LCD panel. This last week temperatures have gotten up to 105degF, and have been known to get to -10degF in the winters. I'm wondering if any /.ers have had issues with computers in cars in such extreme temperatures (overheating? freezing?), and if so what they did to solve such problems."

Theovon asks: "I have only released one open source project so far (link below), and I have never submitted patches to any other, so I am very unfamiliar with some of the politics. I have a new open source project I am considering releasing sooner rather than later, but I want to know how to keep control over it long enough to get into it everything I want. Specifically, what I want to know is how to deal with unwanted suggestions by contributors. By unwanted, I mean submissions which may be nice but which would cause the project to deviate significantly from where you are trying to head. I think it's important to publically address this issue, rather than doing Google searches and piecing together a perspective of it on my own. think there may be many developers out there whose work could benefit us all but who are wary of what might happen if they were to let loose before they had achieved enough of their goals. In my ignorance and paranoia, I have been pondering the various negative consequences of an early release, and I would like to see what Slashdot has to say about these concerns."

reezle asks: "Mostly I was wondering what other sysadmins have been doing for Mirroring or RAID-5 in their w.2000 servers. I really don't like the M$ 'Enhanced' disks that allow for RAID, since I've actually lost a volume during the conversion from 'basic' to 'enhanced', and also I worry that I will get locked out of the volume if the OS goes belly-up on me. There is also the idea that software RAID is much slower, but it's cheap, and so are some of my customers. What kinds of solutions are being used successfuly? What kind of recovery nightmares have people run into? Is IDE RAID ready for the real-world server market yet?"

Chris Tyler asks: "Picture this: you're sitting on the couch surfing on your tablet. You find something interesting (or funny or informative), so you say, "Hey! Look at this!" and send the window to the video projector shining on one of your walls. Or you are surfing for a hotel reservation and want to show it to your spouse before you click on 'book it'. Or you're viewing a report on your PC and the captain orders, 'on viewscreen!' With viable tablet PCs inching ever so slowly towards market, 802.11b an established technology, and more programmable pixels blinking at us then ever before, redirection capability for GUI windows will become a more and more desirable feature. X11 has some great network capabilities, but doesn't easily send to multiple displays or enable a window to be switched between displays. VNC is cross-platform and does permit disconnect/reconnect, connection initiation from either end, colourdepth mapping, and multiple views of the same desktop, but it is desktop-oriented (as opposed to window-oriented) in most implementations. Are there any good solutions for dynamic window redirection? What features would a good redirection solution include?"