Slashdot Mirror

Ant writes with a story from Dan's Data, which says that the battery meter and connection-strength displays in your portable electronics are lying to you, "and not just when they whisper to you in the night." Quoting: "Mobile phones, and most modern laptops, have signal strength and battery life displays. One or both of these displays has probably been the focus of all of your attention at one time or another. Neither display is actually telling you what you think it's telling you. The signal strength bars on a mobile phone or laptop do, at least, say something about how strong the local signal is. But they don't tell you the ratio between that signal and the inevitable, and often very considerable, noise that accompanies it ..."

A few days ago, Dan Rutter (the Dan in "Dan's Data") published an interesting idea for extending the sort of philanthropic technical pranksterism that spawned throwies by applying the same approach to Wi-Fi. That means, looking what he hopes is not too far down the road, creating Wi-Fi repeaters that are cheap enough to deploy on the sly and frugal enough with power to run on solar power or cheaply replaceable batteries. But as he says, "If you've got a lot of spare money, a ladder and no respect for private property, though, you could already be stealthily deploying Open-Mesh or other such gadgets all over your neighbourhood." In some cities at least, you'd be hard pressed to ever avoid at least one available wireless access point, but that's not the experience for most people, most places -- which bears correction.

A few days ago, Dan Rutter (the Dan in "Dan's Data") published an interesting idea for extending the sort of philanthropic technical pranksterism that spawned throwies by applying the same approach to Wi-Fi. That means, looking what he hopes is not too far down the road, creating Wi-Fi repeaters that are cheap enough to deploy on the sly and frugal enough with power to run on solar power or cheaply replaceable batteries. But as he says, "If you've got a lot of spare money, a ladder and no respect for private property, though, you could already be stealthily deploying Open-Mesh or other such gadgets all over your neighbourhood." In some cities at least, you'd be hard pressed to ever avoid at least one available wireless access point, but that's not the experience for most people, most places -- which bears correction.

An anonymous reader asks "I am searching for a box into which I can plug a hard drive (IDE or SCSI of various flavors) and automatically begin a secure deletion process (DoD 2250 compliant or the like would be good). This is normally for dead drives which need to be RMA-ed. Because of various regulations (HIPAA for starters), we need to at least attempt to do a good job clearing the disk. I've heard from a number of places, including this Slashdot story, that degaussing isn't great. There are software solutions out there, but in general, I want to toss a replacement hard drive in and not have to hunt around for hardware to put the bad drive in in order to run the software. Given the right case, a solid state drive, some SCSI cards and one of various pieces of software, I can imagine such a beast. Has anyone seen someone selling something like this?" No case-opening is necessary to use a USB/IDE converter, which might be a good middle ground. Any other ideas?

leathered writes "Charlie Demerjian of The Inquirer has posted an interesting article on the integrity of hardware review sites. Apparently the benefits of running such a site go far beyond advertising revenue with a fair amount of 'sweeteners' from the hardware manufacturers to say the least. All is not lost as Charlie informs us that there are a small number are flying the flag for trustworthy reviews, but the question of which sites we can trust remains." I like Daniel Rutter's (of Dan's Data) policy best.

Daniel Rutter writes "Slashdot chewed over the BatMax Battery Life Booster - a nanotechnomagical sticker that's meant to rejuvenate lithium ion batteries - a while ago. Now I've reviewed the strikingly similar Batterylife Activator, and subjected it to actual empirical testing, with automated datalogging and everything. The results confirmed my original suspicion -- that the local Batterylife branch made a serious error of judgement when they decided to send me their product."

Daniel Rutter writes "Slashdot chewed over the BatMax Battery Life Booster - a nanotechnomagical sticker that's meant to rejuvenate lithium ion batteries - a while ago. Now I've reviewed the strikingly similar Batterylife Activator, and subjected it to actual empirical testing, with automated datalogging and everything. The results confirmed my original suspicion -- that the local Batterylife branch made a serious error of judgement when they decided to send me their product."

Saint Aardvark writes "From Dan's Data comes a fascinating look at the consequences of tiny, wireless video cameras: "Right now, it's hard to prove that (for instance) riot police really beat the crap out of innocent people at a demonstration....Live streaming video from multiple cameras operated by lots of people at the same time, though, will be a different matter. Even without cryptographic jiggery-pokery, it'll be practically impossible to get away with even minor editing-room spin doctoring, if thousands of people around the world have the original footage on their hard drives." "

MBCook writes "Looking for something new? Well Dan's Data has a review of something called a "Juvenile Felis Catus" (or "kitten" for short). The review goes over everything from how to aquire one, to required maintence, to storage, to a comparison against other ways of spending your money (kitten vs. puppy vs. baby vs. new video card). The article is full of useful and informative links such as your average kitten's standard configuration. A well reasoned and interesting review."

MBCook writes "Looking for something new? Well Dan's Data has a review of something called a "Juvenile Felis Catus" (or "kitten" for short). The review goes over everything from how to aquire one, to required maintence, to storage, to a comparison against other ways of spending your money (kitten vs. puppy vs. baby vs. new video card). The article is full of useful and informative links such as your average kitten's standard configuration. A well reasoned and interesting review."

Daniel Rutter writes "I've just reviewed Mission3-D's Photo3-D 303 kit. It's a simple and straightforward way to take 3D pictures with your existing digicam, but it otherwise doesn't live up to the hype. It turns out you can do the same thing better, for less money."

Daniel Rutter writes "I've just reviewed Mission3-D's Photo3-D 303 kit. It's a simple and straightforward way to take 3D pictures with your existing digicam, but it otherwise doesn't live up to the hype. It turns out you can do the same thing better, for less money."

Unixrevolution writes "Dan's Data has an excellent article on how an enterprising user (or repair tech) can easily destroy their computer. Most of us don't destroy nearly enough hardware, so this should be helpful."

Unixrevolution writes "Dan's Data has an excellent article on how an enterprising user (or repair tech) can easily destroy their computer. Most of us don't destroy nearly enough hardware, so this should be helpful."

Daniel Rutter writes "I've just reviewed the Zero Blaster, the smoke ring gun that ThinkGeek (among others) sell. It works. It's fun. It's a vortex ring physics demonstration with two triggers and a see-through mechanism. What more could you want for $20?" Thinkgeek and Slashdot are both owned by VA Software.

Daniel Rutter writes "I've just reviewed the Zero Blaster, the smoke ring gun that ThinkGeek (among others) sell. It works. It's fun. It's a vortex ring physics demonstration with two triggers and a see-through mechanism. What more could you want for $20?" Thinkgeek and Slashdot are both owned by VA Software.

Kneht writes "Dan's Data has an interesting article on what it would cost to get rid of your HDDs and replace them with SSDs because hard drives suck. Several aspects are examined, such as required UPS, compact flash, etc. Read the article and you may get a new appreciation for your lowly 7200rpm drive." Funny, I was just thinking that I should start using 120GB disks as my removable media.

Kneht writes "Dan's Data has an interesting article on what it would cost to get rid of your HDDs and replace them with SSDs because hard drives suck. Several aspects are examined, such as required UPS, compact flash, etc. Read the article and you may get a new appreciation for your lowly 7200rpm drive." Funny, I was just thinking that I should start using 120GB disks as my removable media.

Daniel Rutter writes "I've just reviewed a couple of Konami's Combat DigiQs - tiny little remote controlled tanks that can shoot each other. You can stage a two-, three- or four-tank battle, every tank for himself or in teams of two, on a coffee table. They rock."

Daniel Rutter writes "I've just reviewed a couple of Konami's Combat DigiQs - tiny little remote controlled tanks that can shoot each other. You can stage a two-, three- or four-tank battle, every tank for himself or in teams of two, on a coffee table. They rock."

Daniel Rutter writes "In a move that's made me wonder afresh whether I'm actually living this life or just dreaming it, I've just put up a review of a bunch of office toys. Two rubber band guns, a pneumatic ping-pong ball launcher, a bubble gun, some iridescent bouncing putty, a frickin' CROSSBOW that shoots sucker darts, and a couple of high-flying ring-ins that aren't really suitable for indoor play at all."

Daniel Rutter writes "In a move that's made me wonder afresh whether I'm actually living this life or just dreaming it, I've just put up a review of a bunch of office toys. Two rubber band guns, a pneumatic ping-pong ball launcher, a bubble gun, some iridescent bouncing putty, a frickin' CROSSBOW that shoots sucker darts, and a couple of high-flying ring-ins that aren't really suitable for indoor play at all."

Giampiero writes "Over at dansdata.com some guy named Dan creates a UPS out of some spare parts. To sum it up, "if you're looking for an industrial-capacity UPS solution, and don't like the prices of the off-the-peg options, it might be easier than you think to roll your own."" Of course you can mentally substitute U.S. 110 volts for Australian 220 volts wherever necessary...

Daniel Rutter writes: "Graphics cards using the SIS Xabre chipset don't seem to have quite made it to the retail market in most of the world yet, but they're on sale now here in Australia. I've checked out Triplex's shiny XabrePRO card. It's weird. Not just because it's silver, in typical Triplex fashion. It's also got weird drivers. Not bad drivers. Just... weird. And it makes a weird noise. Seriously." Check out those screenshots, and wonder.

Daniel Rutter writes: "Graphics cards using the SIS Xabre chipset don't seem to have quite made it to the retail market in most of the world yet, but they're on sale now here in Australia. I've checked out Triplex's shiny XabrePRO card. It's weird. Not just because it's silver, in typical Triplex fashion. It's also got weird drivers. Not bad drivers. Just... weird. And it makes a weird noise. Seriously." Check out those screenshots, and wonder.

Daniel Rutter writes "Sony's DCR-IP7 Network Handycam IP is digital. It's really small. And it's got a super-tiny one hour cassette, USB, i.LINK and Bluetooth connectivity, a Web browser, an e-mail client, and a quite long list of other features." Pricey, but interesting. The review kinda pans the device, but I still dig the idea.

Daniel Rutter writes "Sony's DCR-IP7 Network Handycam IP is digital. It's really small. And it's got a super-tiny one hour cassette, USB, i.LINK and Bluetooth connectivity, a Web browser, an e-mail client, and a quite long list of other features." Pricey, but interesting. The review kinda pans the device, but I still dig the idea.

Polo writes: "Remember those magnetic sculpture things you can buy at the mall where these small metal pieces stay in one shape. Imagine doing that with Ferrofluids. This is just too cool. Dan is the nerd's nerd." Well, can't get any higher praise that that, I suppose. :) I have a couple of neodymium magnets and yes, they are much fun. Never played with magnetic fluid though.

Polo writes: "Remember those magnetic sculpture things you can buy at the mall where these small metal pieces stay in one shape. Imagine doing that with Ferrofluids. This is just too cool. Dan is the nerd's nerd." Well, can't get any higher praise that that, I suppose. :) I have a couple of neodymium magnets and yes, they are much fun. Never played with magnetic fluid though.

manplusdog writes: "Dan reviews a couple of i845 motherboards here and lets just say he doesn't hold back! "Mainboards For The Stupid" is the verdict. I have no affiliation with Dan or his site (aside from being Australian) but found the review..... entertaining. Cheers"

Daniel Rutter writes: "LED flashlights are better than incandescent, but not for the reasons you might think. I've done a couple of hefty LED flashlight comparisons, now. The latest one, just finished, is here. It covers the neat little Streamlight Stylus 3, five Tektite lights (four of which are waterproof to 1000 feet...), and a couple of old-fashioned filament-bulb Maglites, so you can see how the new technology stacks up. My first comparison is here; it covers a few of LEDCorp's cheap but tough lights, and some of the very, very Star-Trekky EternaLights. They've got microprocessor control, baby!" Nifty. Birthday presents galore.

Daniel Rutter writes: "LED flashlights are better than incandescent, but not for the reasons you might think. I've done a couple of hefty LED flashlight comparisons, now. The latest one, just finished, is here. It covers the neat little Streamlight Stylus 3, five Tektite lights (four of which are waterproof to 1000 feet...), and a couple of old-fashioned filament-bulb Maglites, so you can see how the new technology stacks up. My first comparison is here; it covers a few of LEDCorp's cheap but tough lights, and some of the very, very Star-Trekky EternaLights. They've got microprocessor control, baby!" Nifty. Birthday presents galore.

Daniel Rutter writes: "LED flashlights are better than incandescent, but not for the reasons you might think. I've done a couple of hefty LED flashlight comparisons, now. The latest one, just finished, is here. It covers the neat little Streamlight Stylus 3, five Tektite lights (four of which are waterproof to 1000 feet...), and a couple of old-fashioned filament-bulb Maglites, so you can see how the new technology stacks up. My first comparison is here; it covers a few of LEDCorp's cheap but tough lights, and some of the very, very Star-Trekky EternaLights. They've got microprocessor control, baby!" Nifty. Birthday presents galore.

Rob Pascual writes: "I thought this article was interesting. It's a review of software that analyzes pictures in email to see if they are porn. Not that it works too well, but it's interesting how it works, and has a lot of cool info on image recognition." See also this earlier Slashdot story about the same concept embodied in software from Exotrope and Eye-T, which seems mostly to illustrate how absurd it is.

CitizenC writes, "If James Bond were more into keystroke loggers, and less into cars and chicks, this is what he would use. The KeyGhost Security Keyboard looks like a plain cheapo keyboard. But it records everything you type on it. 500,000 freakin' characters worth, if necessary. And you can dump its keystroke log to any computer you connect it to. Applications for this technology are left as an exercise for the reader. Check out the review. "

Let's say you work in a shared office environment and want to prevent someone from eavesdropping on your computer use. You take the logical precautions: you have a lock on your floppy drive, you set a password in the BIOS, you encrypt your files, and you use only secure protocols for remote interaction. Odds are still low that you have a shroud or other physical impediment preventing access to your keyboard's PS/2 port, right?

Interestingly, the KeyGhost is also available in a Microsoft Natural model, so it might be inconspicous in many settings that a new standard keyboard might stick out in. So now you have more reason than plain cynicism to wonder at an "upgrade" to your regular keyboard at work. Of course, most programmers have settled on their keyboards after long trial, and would never disregard such a switch.

Despite the obvious unscrupulous uses this keyboard could be put to, I can think of one that isn't: I'd like to see one of these drawing its power from a battery pack instead of the PS/2 port and featuring a tiny LCD display, for times when it'd be nicer to type an e-mail out on the porch than inside, or as a more efficient idea-gobbler than a pen-driven PDA.

Dan's Data writes " Destroying your own computer is every user's right and is the pattern of behaviour expected by the manufacturer s and, especially, repair personnel, whose very livelihood is put in peril by those users who perversely persist in correctly upgrading their equipment." Just read it. Its funny.

Dan's Data writes " Destroying your own computer is every user's right and is the pattern of behaviour expected by the manufacturer s and, especially, repair personnel, whose very livelihood is put in peril by those users who perversely persist in correctly upgrading their equipment." Just read it. Its funny.