Designer Michiel Cornelissen laser-sintered stainless-steel crucifix has screwdriver bits cut into each tip, turning it into a screwdriver that repels vampires.

a bit cross (via Make)

Muji's going to start selling hole-punches that knock out patterns that can be threaded between two Lego bricks. They go on sale in a week, and open up many possibilities for crafty Lego extensions.

LEGO for MUJI Paper and Block Sets (via Make)

Coming soon to a science fiction plot near you: with the right software, a plain-jane webcam can be a 3D scanner. It's a project from Qi Pan, a PhD candidate at Cambridge University Engineering Department.

ProFORMA: Probabilistic Feature-based On-line Rapid Model Acquisition (via Futurismic)

Brando's Auto Domino Building Truck is a battery-powered toy truck that shits bricks -- that is, it poops out dominos standing on end at the correct intervals to make a domino run. Or so the manufacturer says -- I haven't tried it yet. But I have a vision of setting this thing down at one end of an airport concourse and creating a mile-long run. I love that the dominos load in via a magazine that sticks out of the top like a banana-clip on an automatic rifle.

The Auto Domino Building Truck (via Red Ferret)

Mac|Life magazine recently approached me and several other people (Brian Lam, Veronica Belmont, Michael Brook, Mark McClusky) to envision a future product from Apple. Mac|Life rendered them beautifully, and the products the other people came up with are really cool.

My product was a rapid-prototyping system called the iMake (above).

iMake is a desktop manufacturing system based on the RepRap (reprap.org), an open-source 3D rapid prototyping technology. Apple led the way in the desktop publishing revolution, and now it's leading the way in the desktop manufacturing revolution. With iMake, you can make your own small products at home, such as Bluetooth headsets, iPods with unique form factors, wristwatches, eyeglasses, door knobs, and more.



To create a product, you visit the iTunes Store to choose from among tens of thousands of product designs--prices range from free to $9.99--purchasing one just as you would a song, video, or app. The 3D data is sent to the iMake, which builds the parts, layer by layer, out of high-quality plastic. The iMake will also make the circuit boards. Then, all you do is snap the pieces together! After purchasing a 3D model from the iTunes Store, it takes about 15 minutes to print a 3D part.

New Apple Products--as Imagined by the Elite Gadget Press

As Cory wrote earlier today, the Chumby is a hackable Internet device with a full-color display.

You can buy a pre-built Chumby, or you can buy a Chumby Guts kit and incorporate it into your own DIY project. A second (and most likely final) batch of Chumby Guts are now for sale at the Maker Shed.

Here's a testimonial from a happy Chumby Guts owner:

It took me a half hour to assemble this and a short time to set up an account and configure it.  Everything worked perfectly the first time.  The device operates without a case if desired.  I'm completely satisfied.  Chumby is an amazing product!

Chumby Guts

That Apple's tablet shall eventually come is all but certain. But now that uncertainty over the release date has emerged, Piper Jaffray analyst Gene Munster hedges that it's irrelevant.

That said, Munster seems to be the master of inaccurately predicting the imminent release of the Apple Tablet--perhaps this is a sign that it actually came out yesterday and we all missed it.

An article in The American Journal of Forensic Medical Pathology entitled "Use of a pig model to demonstrate vulnerability of major neck vessels to inflicted trauma from common household items" describes all the ways you can stab people with stuff you're allowed to take through airport security, like pens and plastic knives.

Commonly available items including a ball point pen, a plastic knife, a broken wine bottle, and a broken wine glass were used to inflict stab and incised wounds to the necks of 3 previously euthanized Large White pigs. With relative ease, these items could be inserted into the necks of the pigs next to the jugular veins and carotid arteries. Despite precautions against the carrying of metal objects such as knives and nail files on board domestic and international flights, objects are still available within aircraft cabins that could be used to inflict serious and potentially life-threatening injuries. If airport and aircraft security measures are to be consistently applied, then consideration should be given to removing items such as glass bottles and glass drinking vessels. However, given the results of a relatively uncomplicated modification of a plastic knife, it may not be possible to remove all dangerous objects from aircraft. Security systems may therefore need to focus on measures such as increased surveillance of passenger behavior, rather than on attempting to eliminate every object that may serve as a potential weapon.

Use of a pig model to demonstrate vulnerability of major neck vessels to inflicted trauma from common household items. (via Schneier)

(Image: TSA Security Checkpoint, a Creative Commons Attribution ShareAlike photo from BillyPalooza's Flickr stream)

The Chumby One -- the successor to the incredibly innovative Chumby device -- is just about ready to ship, and is available for $99. Chumby is a cute, squeezable hand-held device that is wide open -- everything from the circuit board designs to the software is open-licensed and freely downloadable. The idea is to produce an adorable, versatile device that any hacker, anywhere, can improve, so that all Chumby owners can get more out of it. I have a couple of them at the office and I love playing with them. The new version looks amazing.

In addition to being about half the price of the original chumby, the new device added some features: it has an FM radio, and it has support for a rechargeable lithium ion battery (although it's not included with the device, you have to buy one and install it yourself). There's also a knob so you can easily/quickly adjust the volume. But I don't think those are really the significant new features. What really gets me excited about this one is that it's much more hackable. The most significant improvement is that the firmware is stored on a microSD card.

The microSD card isn't replaceable from the outside -- this is to prevent non-hackers from pulling it out and wondering why the device isn't booting anymore -- but if you take the back panel off (screws this time, no glue seals), it's fairly easy to access. The key here is that no longer do you have to worry about bricking your chumby device: if you screw up the firmware, you just pull it out, mount it on your dev box, and dd a new image onto it. Also, microSD is a "managed" NAND device, unlike our previous generation device which used a raw NAND device. This means that we don't have to rely on a MTD layer for the filesystem, and instead we can directly drop ext3 onto the device. While we still mount the root partition as read-only to harden the device against accidental damage, unlike our original cramfs implementation, you can trivially remount it as read/write and modify the linux on the device. Also, our OS image takes up only a small portion of the total device capacity, so there's actually over a gigabyte of extra space on there for you to load extra applications and libraries.

chumby One (Bunnie Huang's blog)

Chumby Store

The owner of this electric shaver with a faulty power switch taught it a lesson it won't forget. I think it's great that he fixed it instead of throwing it away and buying a new one.

EnjoyMobil's Metabots are incredibly detailed poseable papercraft mecha robots that you assemble (and then decorate) from $10 kit books. Man, I can't wait until my kid's old enough to build these with.

Metabots

Do you think the TSA would let you past security with this USB memory stick in the shape of an itsy-bitsy grenade?

The prize is a $700 HP MediaSmart EX495 PC, set up as a Windows home server, with 1.5TB of storage and Mac/Time Machine support. The winner shall be chosen at arbitrary whim. Runners-up get something random from the gadget dungeon.

The theme is "Found in Space." 100 words long. Go!

Hey, Bostonites! I'll see you tonight at the Harvard Bookstore (1256 Mass Ave) at 7PM for the US launch of my new novel, Makers! (New Yorkers, and Philadelphians -- see you later this week!)

US/Canada tour

Ed sez, "Here's an article from 1985 in the Association for Recorded Sound Collections Journal about record piracy in the 19th century. Includes illustrations of three duplicators from the 19th century."

Record Piracy: The Attempts of the Sound Recording Industry to Protect Itself against Unauthorized Copying, 1890-1978 (PDF) (Thanks, Ed!)

Apple's filed a patent on a design for a device that won't let its owner use it unless that person demonstrates that she has complied with an advertiser's demands by paying attention to an ad and taking some action indicating her dutiful attention.

It's amazing how many of these vendors fail to understand Chekhov's first law of narrative: "A gun on the mantelpiece in act one is bound to go off by act three." That is, if you design a device that is intended to attack its user -- by shutting her out of her own files and processes against her wishes and without her consent -- someone will figure out how to use that device to attack its user.

Or as Mitch Kapor once quipped, "Architecture is politics." Designing your device ecosystem for 1984 gives you...1984.

Cue Apple Fanboys who want us all to understand that the infallible and immortal Steve Jobs would only use this power to show us lovely, interesting, and informative messages that we're happy to receive in 5... 4... 3... 2... 1....

Its distinctive feature is a design that doesn't simply invite a user to pay attention to an ad -- it also compels attention. The technology can freeze the device until the user clicks a button or answers a test question to demonstrate that he or she has dutifully noticed the commercial message. Because this technology would be embedded in the innermost core of the device, the ads could appear on the screen at any time, no matter what one is doing.

The system also has a version for music players, inserting commercials that come with an audible prompt to press a particular button to verify the listener's attentiveness.

The inventors say the advertising would enable computers and other consumer electronics products to be offered to customers free or at a reduced price. In exchange, recipients would agree to view the ads. If, down the road, users found the advertisements and the attentiveness tests unendurable, they could pay to make the device "ad free" on a temporary or permanent basis.

Apple Wouldn't Risk Its Cool Over a Gimmick, Would It? (via Warren Ellis)

Saul Hansell suggests that hated U.S. cellular carrier practices such as text message markups and fee-packed contracts ultimately give American consumers what they really want: predictable bills.

In pursuit of this we learn of the psychological "nuances" of pricing and the "supersized logic" of using fat overage fees to upsell customers to expensive all-you-can-eat plans.

"This year," he writes, "the deals are becoming even better."

I owe the Hacklab.to people an apology. Last spring I ran this post about how they'd tuned the motor on their laser cutter to play the Super Mario Theme as it repositioned itself, and I mentioned that it was too perfect, and wondered "if it's not just some video of a laser cutter with a flanged-out version of the theme cut into the soundtrack."

Yesterday, I dropped in at the Hacklab in Kensington Market (it's an amazing place), and saw the laser cutter do its thing. And you know what? It plays an absolutely perfect Super Mario Theme. Seriously.

Laser etcher plays Super Mario. It's real! Hacklab.to, Kensington Market, Toronto, ON, Canada.avi

Davesbit made his own globe using maps from the Generic Mapping Tools project; he used a beachball for a mold and cast the sphere with fiberglass and foam.

here is the plastic beach ball covered in paint for the inside of the sphere-half mold...

the stand was made from scraps of red oak from a computer table i built...

globe with stand (via Make)

So this is apparently real (?!): an eyeball removal tool for "Reborn" baby-dolls. Holy creepy.

BEST REBORN EYEBALL-REMOVING TOOL I'VE FOUND! (Thanks, Fipi Lele!)

I recently talked to Sony's Steve Haber, President of Digital Reading, about its flagship ebook reader. Named the "Daily Edition," it hits stores next month. Notwithstanding differences between each manufacturer's respective libraries, it offers all the best features of its main rival, the Kindle. But Sony says it offers one thing that Amazon won't: actual ownership of your books.

The Roomba Pac Man uses indoor location sensors and Unmanned Aerial System software to create a playable (albeit slow) PacMan built on repurposed autonomous vacuum cleaners.

Roomba Pac-Man (via Wonderland)

Take a look at this crazy home water purification system created by a 68-year-old retired engineer.

Above: "magnetic bottle. Plastic bottle with a magnet (I used magnets for the refrigerator). Here are removed from the water surplus of some metals."

Below: "Fig.6 Capacitance cereal saturation. Funnel neck of a plastic bottle filled with millet. Here the water is saturated with vitamins and gets incomparable flavor Russian fields."

Machine for water purification

This crazy-looking dress, created by two designers in London for the Museum of Science and Industry in Chicago, is made of silk chiffon and 24,000 full color LEDs. It's called the Galaxy Dress. It runs on tiny iPod batteries woven into the fabric so no one part becomes extra-bulky or heavy. The catch: it uses as much electricity as two light bulbs and will only stay lit for up to an hour.

Designer duo create a dress with 24,000 LEDS

No, this isn't about holy water as a miracle swine flu vaccine. Rather, some Catholic churches in Italy are replacing holy water basins with more sanitary electronic dispensers that spurt out a single serving of the magical fluid. From The Telegraph:

It functions like an automatic soap dispenser in public lavatories - a churchgoer waves his or her hand under a sensor and the machine spurts out holy water.

"It has been a bit of a novelty. People initially were a bit shocked by this technological innovation but then they welcomed it with great enthusiasm and joy," said Father Pierangelo Motta...

"After all the news that some churches, like Milan's cathedral, were suspending the use of holy water fonts as a measure against swine flu, demands for my invention shot to the stars. I have received orders from all over the world," (inventor Luciano Marabese) said.

Holy water dispenser combats spread of swine flu

I got my Dell Mini10V in the mail yesterday. It's small and red and pretty, but I had one minor issue with my order. When I was personalizing my order online, it asked me if I wanted a 24WHr 3-cell battery or a 56WhHr 6-cell battery; the 6-cell was just $35 more, but had double the lifespan. I went with the 6-cell. As soon as I pulled it out of the box, though, I realized it was way too big to fit into my favorite bag. It was my fault; I had ordered the wrong thing. I called Dell's 1-800 number to see if they could process an exchange; it was the beginning of what turned out to be a baffling journey into the labyrinth of Dell's customer service phone line.

After a few minutes of hold music, I got through to a woman who told me I could return the 6-cell, get a refund, and then purchase the 3-cell separately. I wanted to ask her how much the refund would be for, but after telling me she'd email me a UPS label, she hastily thanked me for choosing Dell and then put me on hold so I could speak to a sales rep who would then sell me the 3-cell battery.

The sales rep was a soft-spoken woman named Jame. After asking me about three minutes of questions about what kind of laptop I had purchased and how, she told me I could buy a 3-cell battery for my Mini 10V for $129.99 + tax, how would I like to pay? Before I paid, I wanted to know how much I was going to get refunded for the 6-cell. She said it would be around $135, but she seemed unsure. I asked her to put me back on the phone with the person whom I had talked to about the refund so I could double check.

She refused. "I'd really like to sell you this battery first," she said.

I explained that I didn't want to pay $129.99+ for an extra battery for a $299 computer without knowing how much I'll get refunded for the one I was returning. She kept asking me why I wasn't buying the battery from her, and I repeatedly told her that it was because I wanted to confirm the return amount, and besides, I can buy it on Dell.com for the same price, free shipping, without spelling out my name, address, and credit card number over and over. Finally, she said:

"Ma'am, I didn't want it to come to this, but I'll tell you this, I want to make this sale. If you don't buy the battery, I won't get my commission."

It's gadgets like this Matrox 8-way video card -- which lets you drive eight 2560 x 1600 displays at once -- that make me think seriously about going back to a desktop machine and abandoning laptops. If only I could find 1) room for eight displays and 2) a graceful way of using the home partition on my laptop as my desktop's home partition as well, without sacrificing speed (NFS), or having to reboot each time I sit down.

The Matrox M9188 PCIe x16 multi-display Octal graphics card addresses the need to visualize large amounts of data at once in order to effectively make decisions. The latest offering from the M-Series family is the world's first single-slot PCIe x16 octal card, featuring the ability to support both DisplayPort and DVI Single-Link outputs to ensure wide compatibility with today's monitors. With 2 GB of memory and advanced desktop management features, such as independent or stretched desktop modes, the M9188 drives energy, transportation, process control, financial trading, and other mission-critical environments with extraordinary performance.

Matrox M9188 PCIe x16 (via Red Ferret)

As Alice at Wonderlandblog points out, it's rare to see official merch as good as these Bioshock 2 EVE Hypos -- you usually have to find some fetishistic fan art. But this is an actual in-store tchotchke, and it's a corker.

(via Wonderland)

Here's the Guardian's Alison Flood's detailed look at Kim Stanley Robinson's latest novel, Galileo's Dream, a fictionalized biography of Galileo that features time-travel.

What he came up with was three different temporal dimensions - the first moving very fast, at the speed of light, the second very slow and "vibrating slowly back and forth, as if the universe itself were a single string or bubble", the third - antichronos - in reverse. We experience them as one, creating a three-way interference pattern, which accounts for sensations such as foresight, déjà vu, nostalgia and precognition. The compound nature of time, Robinson writes, "creates our perception of both transience and permanence, of being and becoming". He's shown the novel to people who are "much more serious about the time travel stuff" and they're "having a blast". "They immediately map my three strands of time onto their system. They think I've partially discovered the real thing," he says gleefully...

So Galileo makes his telescope. He sees the Seven Sisters constellation, surrounded by "thickets of lesser stars, granulated almost to white dust in places ... No one else in the history of the world had ever seen these stars, until this very night, this very moment". He discovers Jupiter's four moons. He studies acceleration and motion. He observes sunspots. He frequently, frequently rings "like a struck bell" as his genius strikes: "Here it was, the truth of the situation - the cosmos revealed in a single stroke as being one way rather than another. The Earth was spinning under his feet, also rolling around the sun ... Again he rang like a bell. His flesh buzzed like struck bronze, his hair stood on end. How things worked; it had to be; and he rang." He stamps on the ground after he is tried by the Inquisition for supporting Copernicanism: "'It still moves!' he said. 'Eppur si muove!'"

Kim Stanley Robinson: science fiction's realist (Thanks, Robert!)

CALEA is the terrible US federal law that requires that all switches that carry voice-traffic be built with an easy-to-access remote wiretapping capability so that cops (or bad guys who know cop secrets) can listen in on your voice conversations without cooperation from the phone company. A team of University of Pennsylvania researchers (already notorious for finding flaws in the previous version of the CALEA standard that let callers lock out wiretaps) have found a solid theoretical attack against the newer, shinier CALEA standard.

"We asked ourselves the question of whether this standard is sufficient to have reliable wiretapping," said Micah Sherr, a post-doctoral researcher at the university and one of the paper's co-authors. Eventually they were able to develop some proof-of-concept attacks that would disrupt devices. According to Sherr, the standard "really didn't consider the case of a wiretap subject who is trying to thwart or confuse the wiretap itself."

It turns out that the standard sets aside very little bandwidth -- 64K bits per second -- for keeping track of information about phone calls being made on the tapped line. When a wire tap is on, the switch is supposed to set up a 64Kbps Call Data Channel to send this information between the telco and the law enforcement agency doing the wiretap. Normally this channel has more than enough bandwidth for the whole system to work, but if someone tries to flood it with information by making dozens of SMS messages or VoIP (voice over Internet protocol) phone calls simultaneously, the channel could be overwhelmed and simply drop network traffic.

That means that law enforcement could lose records of who was called and when, and possibly miss entire call recordings as well, Sherr said.

How to Deny Service to a Federal Wiretap (Thanks, Adam!)

My daughter earned this spinning top for selling wrapping paper in a school fundraiser. It plays the theme from Beverly Hills Cop and draws a laser circle on the floor. Thirty years ago the technology in this toy would have cost $100,000.

DesignMartus's portfolio has some beautiful metalwork on display, around a motif of hands and fists. This wonderful fist sledgehammer would be a fine addition to any toolkit.

Early Tools (via Make)

A reader writes, "The Catena wall clock harkens back to traditional mechanical clocks. Copper digits mounted onto a bicycle chain place emphasis on the cyclical nature of time. This clock is a striking clock, literally and figuratively."

Well, not literally. But figuratively. And man, was this thing ever designed to fire up the desiderata center of my brain.

Catena Wall Clock

Bonnie sez, "Measuring close to a foot tall and crafted in durable all-weather resin, the Garden Jawa protects your tomatoes, zucchini, and daffodils from the dark side, armed with a garden tool bandolier, a garden hose, and a thumbs-up attitude. Reflective amber-colored eyes peek out from underneath his hood, challenging any unwelcome visitors looking to feast on his turf. True to nature, the Garden Jawa is still up to the well-known mischievous antics we know from the movies. Case in point: If you've caught StarWars.com's Flickr sets lately, you may have caught this little guy sneaking into Skywalker Ranch to snag some pics in front of the Main House. We've also caught him snooping around Lucasfilm's Presidio campus, reclaiming a bit of green from the dry California summer months. "

Garden Jawa a StarWarsShop Exclusive (Thanks, Bonnie!)

A reader writes, "Passengers riding Walt Disney World's updated Space Mountain attraction will be able to play video games as they wait in line. Each game lasts about 90 seconds with a 90-second interval and the games can accommodate 86 players at one time."

Space Mountain is a notorious slow loader (all coasters are, since they can't do that lovely continuous belt thing that characterizes, say, the Haunted Mansion; nor do they support giant boats like Pirates of the Caribbean). Anything to make the queue less dull is great news!

Walt Disney World's Classic Space Mountain Attraction to Reopen with a Few Surprises

Yves Béhar (who is in an epic struggle with Marc Newson to claim the title of "sexiest industrial designer alive") designed this vibrator. It looks like a Miyazaki cartoon creature.

The Form 2 takes a two-pronged approach to the vibrator, giving its user what they're calling "Sensation in Stereo." The "ears" can be positioned independently like a Gumby action figure for maximum, um, range, and the entire thing is made from phthalate-free platinum silicone to be completely waterproof. There's even a cute iPod-esque docking station for charging and it can operate UP TO SEVEN HOURS on a single charge.

A New Vibrator by Yves Behar Arouses Our Interest

The product designers over at MintPass have created these concept designs for real life calculators that look just like the calculators that pop up on a Windows or Mac OS screen.

via The Raw Feed

In the thread about Warmouse's unauthorized and many-buttoned OpenOffice mouse, Don Simpson points to ProHance's illustrious original. 40 buttons! It requires DOS 2.0. [AtariMagazines]

I have a 40-button mouse, the ProHance PowerMouse 100, from around 1990. ProHance Technologies in Sunnyvale, CA also made 3-, 12-, and 17-button mice. If you think "ProHance" is so silly a name that no-one else would have used it, just try Googling it by itself

Here's a great look at Pop Up Lunch: NYC, a work-in-progress from Ali Pulver, a grad student at Pratt. The idea is to create a bunch of portable, temporary eating surfaces that hungry New Yorkers can chow down from after buying street food from a wagon or cart.

Those of us who love eating street food, but hate taking lunch back to our desks, have a common problem. Where should we eat? There are a number of indoor pavilions and outdoor seating areas scattered across Midtown, but sometimes I just wish there was a place right next to the carts to just saddle up and tuck in. Well thanks to Pratt Grad Student Ali Pulver, now there is. For her thesis she is developing a couple of tools to make it easier for us to eat on the street. And after testing out the "Lunch Shelf" and the "Hydrantable" last week, I've got to say these could represent the greatest advancements in street food technology since the invention of chicken and lamb over rice!

Hydrantables & Lunch Shelves Are Amazing New Achievements in Street Food Eating Technology

Pop Up Lunch: NYC

(via Making Light)

Remember the BBC's daft plan to put DRM on high-definition broadcasts even though it's illegal for the BBC to put DRM on its broadcasts? Remember when people rose up and sent angry letters to Ofcom, the UK regulator that oversees the BBC's broadcasting activity?

It worked. Ofcom told the BBC to forget about it. Score one for the good guys. Give yourselves several pats on the back.

Meanwhile: the Beeb should be ashamed of itself. Especially for this disingenuous smear-job they published after I wrote about this ridiculous plan in the Guardian.

Ofcom received a large number of responses to this consultation, in particular from consumers and consumer groups, who raised a number of potentially significant consumer 'fair use' and competition issues that were not addressed in our original consultation. In view of these responses we have decided not to approve a multiplex licence change without giving these issues further consideration. We remain keen to support the successful introduction of HD services on the DTT platform and are willing to consider a further round of consultation on the licence amendment if you could provide more information and evidence in the following three areas:

1. The anticipated benefits to citizens and consumers, and to the DTT platform, of the proposed approach;

2. How you propose to address the potential disadvantages to citizens and consumers associated with the impact on the receiver market under the proposed approach;

3. An explanation of potential alternative approaches that would impact less on the receiver market, and the extent to which those alternatives would be able to deliver similar outcomes and benefits for citizens and consumers.

We are keen to provide early clarity on the licence amendment to all stakeholders affected by the DVB-T2, MPEG 4, HDTV upgrade on the DTT platform and would welcome your early response on these three issues. Until we reach a final decision on the licence amendment the HD service information broadcast on Multiplex B should be provided in a free to air format. If Huffman compression is used then the related tables should be made available to receiver manufacturers without the need for a licence for Huffman look-up tables from the BBC.

HD on DTT content management proposals (PDF) (Thanks, Glyn!)

On his Big Questions blog, Steven Landsburg (author of a new book called The Big Questions) discusses a partially blind gamer's lawsuit against Sony. The gamer wants Sony to makes its games more accessible for partially blind people.

Here's the first part of Landsburg's thoughts on the issue:

This raises the question: Exactly what does Sony owe to Alexander Stern (and others like him)?

A similar issue comes up in Chapter 20 of The Big Questions, where Mary the landlord won’t rent to, say, Albanians. Ought we force her to?

In The Big Questions, I make two separate (but closely related) arguments on Mary’s behalf. I was about to write a blog post offering the same arguments on behalf of Sony when I realized that only one of them applies. So I am forced to conclude that I should be a little less sympathetic to Sony than I am to Mary. My first argument is that Mary never had any moral obligation to rent to anyone in the first place—and if she has no general obligation to rent to anyone, then she can have no specific obligation to rent to Albanians. Likewise, Sony has no moral obligation to provide anyone with video games—and if there is no moral obligation to provide me with a video game then there is no obligation to provide one to Alexander Stern. Fine so far.

But my second argument is that Mary, appearances to the contrary, is actually doing some good for Albanian apartment seekers. By renting rooms to non-Albanians, she takes a little pressure off the housing market, driving down rents and making it easier for Albanians to find apartments elsewhere. Sure, she could be doing even more for them, but she’s already doing more for them than I am, since I don’t rent apartments to anyone at all. How can she be at fault for doing small amounts of good when I’m given a free pass to do no good at all?

Read the rest at his blog.

This Shapeways tutorial on "Prepping Blender Files for 3D Printing" is not only useful for 3D printers, it is a treasure-trove of 3D printing jargon.

If you have a model created from several objects or meshes, first make sure that each individual mesh is manifold (water-tight). You can tell this by going into edit mode, pressing A (once if any vertices are selected or twice otherwise) to select none, then hit ctrl-alt-shift-M (on a Mac it's ctrl-opt-shift-M).

Any vertices that get selected when you press that key combination are non-manifold vertices that have to be fixed. Often, fixing these is just a matter of creating new faces (F key) out of sets of 3 or 4 vertices. Sometimes these are stray vertices that are unattached to anything, or are attached to just one vertex by an edge. These can usually be deleted, unless they are intentional (such as those vertices uses to affect the shape while using a subsurf modifier), in which case you want to wait until after you've applied your modifier to delete them. Another possibility are vertices that are part of more than one overlapping faces...

Open the copy of the file, and select each object, one at a time. In object mode, apply all modifiers, then switch to Edit mode, hit A once or twice to select all vertices, then press ctrl-T to triangulate all faces. I don't know why, but Blender does a much better job with Boolean operations if the meshes are triangulated.

Prepping Blender Files for 3D Printing (via Beyond the Beyond)

CCrawford sez, "Michelle Khine couldn't afford the $100,000 fabrication gear to make micro-fluidic chips needed for chip-based diagnostic tests. She turned to Shrinky-Dinks and found a new way to solve the problem."

To test her idea, she whipped up a channel design in AutoCAD, printed it out on Shrinky Dink material using a laser printer, and stuck the result in a toaster oven. As the plastic shrank, the ink particles on its surface clumped together, forming tiny ridges. That was exactly the effect Khine wanted. When she poured a flexible polymer known as PDMS onto the surface of the cooled Shrinky Dink, the ink ridges created tiny channels in the surface of the polymer as it hardened. She pulled the PDMS away from the Shrinky Dink mold, and voilà: a finished microfluidic device that cost less than a fast-food meal.

Khine began using the chips in her experiments, but she didn't view her toaster-oven hack as a breakthrough right away. "I thought it would be something to hold me over until we got the proper equipment in place," she says. But when she published a short paper about her technique, she was floored by the response she got from scientists all over the world. "I had no idea people were going to be so interested," Khine says.

A children's toy inspires a cheap, easy production method for high-tech diagnostic chips (Thanks, CCrawford!)

(Image: Dave Lauridsen)

Noah sez, "An interview with the man who designed the ambient sound at Disney World, ensuring a constant experience rather than one that ends with the end of the ride. It was initially a little uneven, with sound changing volumes depending on where you stood, so they used algorithms to position 15,000 speakers around the park so that the levels would never change."

I like the way there's often running water or waterfalls between different soundscapes to act as a white-noise buffer. It's subtle but incredibly effective. You almost never hear two contrasting soundscapes at once.

In the mid 1990's, the park started researching the problem. It would eventually find no existing solution, so the engineers had to design and construct, on their own, one of the most complex and advanced audio systems ever built. The work paid off: today, as you walk through Disney World, the volume of the ambient music does not change. Ever. More than 15,000 speakers have been positioned using complex algorithms to ensure that the sound plays within a range of just a couple decibels throughout the entire park. It is quite a technical feat acoustically, electrically, and mathematically.

As we land, I ask Mr Q what he considers the highlight of his career. He describes how he wrote some software for "manufacturing emotion" with the thousands of new speakers in the park. The system he built can slowly change the style of the music across a distance without the visitor noticing. As a person walks from Tomorrowland to Fantasyland, for example, each of the hundreds of speakers slowly fades in different melodies at different frequencies so that at any point you can stop and enjoy a fully accurate piece of music, but by the time you walk 400 feet, the entire song has changed and no one has noticed.

How Mr. Q Manufactured Emotion (Thanks, Noah!)

In today's Observer Business column, John Naughton discusses what a ripoff it is for ebook vendors to "sell" you books with abusive, multi-thousand word "license agreements," pretending that because you bought your book over the network, it wasn't a sale, and so you don't get to own it. These "licenses" aren't about upholding copyright (if they were, you could replace thousands of words of lawyerese with four simple words: "Don't violate copyright law"). They're about overriding copyright -- which has all kinds of guarantees for the rights of book-owners -- with a private law that gives every advantage to the publisher or retailer, converting you from a noble reader to a wormy, contemptible licensor who doesn't deserve to own books.

The Kindle EULA is a good example. Section 3, which deals with "Digital Content" (such as downloaded books), says that "Unless specifically indicated otherwise, you may not sell, rent, lease, distribute, broadcast, sublicense or otherwise assign any rights to the Digital Content or any portion of it to any third party, and you may not remove any proprietary notices or labels on the Digital Content." In other words, you are forbidden to lend or sell the book you've just "bought". In real-world terms, you can't lend your copy of 1984 to a friend or donate it to the school jumble sale.

Under the subsection on "Use of Digital Content', the Kindle EULA says: "Amazon grants you the non-exclusive right to keep a permanent copy of the applicable Digital Content and to view, use, and display such Digital Content an unlimited number of times, solely on the Device or as authorized by Amazon as part of the Service and solely for your personal, non-commercial use."

Translation: you can't back up your electronic books on to any other device - which means that if your Kindle packs up, or if Amazon moves on to another technical standard, you're screwed: your entire digital library has effectively been vaporised. Then you look round your house and note the number of electronic devices that no longer work.

Kindle readers beware - big Amazon is watching you read 1984

These newspaper carrier bags are made in India by an NGO that provides education and shelter to street kids. The bags themselves are very sweet and good for several uses before they're ready for the recycling box, and make good use of the striking designs from the newspapers they're folded from (I like the Bollywood poster ones, too!).

Newspaper Bags (Thanks, Alice!)

I'm in the market for a new MP3 player -- my second-gen iPod Nano is finally dead, and I don't want to buy another iPod, or any other player with DRM built in. I figure that any company that wants to devote its engineers to figuring out how to frustrate my desires doesn't really want my business.

Who'd got a suggestion? I'm looking for something:

• * small (Nano-sized or smaller),

• * low-capacity (8GB is fine, all I use it for is podcasts),

• * chargeable and connectable with a standard USB cable,

• * reasonably rugged,

• * with an LCD,

• * capable of marking some files as podcasts or audiobooks and remembering where you stopped playing them, and,

• * most importantly, I'm looking for something that can be connected to a set of lanyard headphones like these

I don't care if it has WiFi or Bluetooth, or if it plays games, or if it has a "store" on the net that lets me get music for it directly. I just want a chunk of solid-state storage with a headphone jack and a decent menuing system and headphones I can wear around my neck so that they don't get tangled in things.

Suggestions? Feed the comments, below (don't send email, I'm taking a break from it for the weekend).