theodp writes: More than 50 years ago, lucky kids found an Automatic Conveyor Erector Set under the Xmas tree. And while President Obama lamented last year that kids — including his own — were done a disservice by an educational system that failed to introduce computer science concepts 'with the ABCs and the colors', Radio Shack advised 'Parents Who Care' to put a TRS-80 under the tree for their kids to program way back in 1978. So, to bring things up-to-date, what are the hot tech/science gifts that Santa brought children today?

Evidently even Forrest Mimms isn't famous enough to fly without hassle when carrying a briefcase full of electronics; he writes at Make about his experiences, both before and after 2001. A relevant slice: After police were called when I was going through security at the San Antonio International Airport and after major problems going through security in Kona, Hawaii, I finally realized the obvious: Most people who don’t make things have no idea how to evaluate homemade equipment. Some are terrified by exposed wires and circuit boards, maybe because of bomb scenes in movies. So I gave up. Now my carryon bag is only half stuffed with electronics; the rest is shipped ahead via FedEx.

JustAnotherOldGuy writes: Peter "brokep" Sunde, co-founder of The Pirate Bay, has built a machine that makes 100 copies per second of Gnarls Barkley's "Crazy," storing them in /dev/null (which is of course, deleting them even as they're created). The machine, called a "Kopimashin," is cobbled together out of a Raspberry Pi, some hacky python that he doesn't want to show anyone, and an LCD screen that calculates a running tally of the damages he's inflicted upon the record industry through its use. The 8,000,000 copies it makes every day costs the record industry $10m/day in losses. At that rate, they'll be bankrupt in a few weeks at most.

An anonymous reader writes: For over a decade, Alek's Controllable Christmas Lights have been a festive online holiday tradition for millions of Internet users world-wide, so it was sadly the end of an era last year, when the Griswold wanna-be hung up his Santa Hat in 2014. But with the "Internet of Things" being the rage these days, it didn't take long for another Griswold to emerge from the North Pole, or at least pretty darn close to it. Ken Woods from Fairbanks, Alaska has his house online 24 hours a day with a dozen ON/OFF buttons that Internet users can use to toggle his lights with a click of a mouse. Here's a video of it in action and he uses Amazon EC2 to power it online. (While that all looks real, low-UID /.'ers will remember that Alek did a simulation from 2002-2004 using Perl code to switch between a series of images. Looks like the prankster dusted off that code for the Control Christmas Lights.com website.) I, for one, welcome our new Griswold Overlords with a big HO-HO-HO.

HughPickens.com writes: We've all said "just one more episode before bed" to ourselves only to fall asleep halfway through while Netflix kept playing. It's frustrating to try to put the pieces back together the next day as you attempt to determine what you last saw before you dozed off — and Netflix feels your pain. Now Nathan McAlone writes at Business Insider that Netflix has built socks that read your body to understand when you fall asleep, and then automatically pause your Netflix show. The sleep detection socks use an accelerometer to tell when you've stopped moving for a while (presumably when you've fallen asleep). In the socks prototype, an LED light in the cuff of the sock begins to flash red when you've been immobile, letting you know it is about to pause your show. If you move at all, it cancels the countdown. Netflix released a detailed parts list (PDF), including where you can purchase each item needed, as well as schematics you can follow as you build out the electronics. The company even put together the basic code you'll need to use to program the electronics, though you'll need to find your TV's IR signals to make it work. The knitting process for the socks doesn't seem too difficult (if you already know how to knit, of course), and Netflix offers a handful of patterns based on the company's popular shows — including "BoJack Horseman," "Unbreakable Kimmy Schmidt," "Bloodline," "Master of None" and "House of Cards."

An anonymous reader writes: As more and more people live closer together in tightly packed subdivisions, the mental stress of noise becomes a serious issue. Noise nuisance complaints are on the rise, litigation increasing. We try to tune it out, yet the stress it causes is still present, and there's seemingly no way around it." Six months ago a new neighbor moved in next door who has two dogs, one of which barks incessantly with a high pitched yip that is driving my wife crazy and making it difficult for me to read or work on the computer. I've already talked to my neighbor and he will bring the dog inside but three days later it starts again. What is a cost effective technical solution to knock 10 or 20 dB off the exterior noise? soundproof windows, an interior acoustic blanket,a sound blocking fence, a sound absorbing fence, planting foliage or noise cancelling headphones, or something else. I'm sure I'm not the first slashdotter to have this problem. What has worked for you?

An anonymous reader writes: Curious about the performance of a Raspberry Pi Zero, Phoronix has published a number of Raspberry Pi 2 + Pi Zero performance benchmarks with paired power consumption data. They found the Pi Zero performed slower than even an Intel Celeron 320 from the NetBurst era, but that the Raspberry Pi 2 was performing between that Celeron and a Pentium 4 "C" 2.8GHz CPU from 2004. While the Raspberry Pis didn't win in raw performance, the performance-per-Watt of the Raspberry Pi 2 was 220x greater than the Pentium Northwood. The Pi Zero had an average power consumption of 2.7 Watts and the Raspberry Pi 2 was at 3.5 Watts; however, compared to newer Broadwell and Skylake processors, Intel's low-end parts delivered greater power efficiency while the Raspberry Pi had the best value.

schwit1 writes: In discovering a new solid state for carbon scientists have also discovered that it is a relatively inexpensive way to produce diamonds. The researchers have found that, depending on the substrates, tiny diamonds will form within the Q-carbon, suggesting that they have actually discovered how diamonds are formed deep below the Earth. The hot high pressure environment there allows Q-carbon to naturally form, and in the process of its solidification diamonds are a byproduct. According to Gizmag: "Professor Jay Narayan of North Carolina State University is the lead author of three papers describing the work that sees Q-carbon join the growing list of carbon solids, a list that includes graphite, graphene, fullerene, amorphous carbon and diamond. He has suggested that the only place Q-carbon might be found in the natural world is in the core of certain planets. The researchers created Q-carbon by starting with a thin plate of sapphire (other substrates, such as glass or a plastic polymer, will also work). Using a high-power laser beam, they coated the sapphire with amorphous carbon, a carbon form with no defined crystalline structure. They then hit the carbon with the laser again, raising its temperature to about 4,000 Kelvin, and then rapidly cooled, or quenched, the melted carbon. This stage of quenching is where 'Q' in Q-carbon comes from."

szczys writes: For hardware developers, electronic surplus stores feel like being a kid in a candy shop. It's hard to walk down an aisle packed floor to ceiling with bins of seemingly-random components without feeling giddy. The wind down of domestic manufacturing, paired with the rise of online parts retailers (think eBay) has led to the shuttering of most electronic surplus shops. But a few of the best are still around. Brandon Dunson takes us on a nostalgic trip through surplus history and a tour of his local electronic surplus store. He brings it home with the saddest part of the trend: the loss of surplus means a loss of culture. Electronic flea markets and surplus stores are a nexus point of talented and interesting people. As they go, so does the opportunity to interact in person with the gurus of electronic development.

Make Magazine weighs in on an issue that's suddenly relevant in a world where less than $10 can buy a new, (nominally) complete computer. Which one makes most sense? Both the $9 C.H.I.P and the newest, stripped-down Raspberry Pi model have pluses and minuses, but to make either one actually useful takes some additional hardware; at their low prices, it's not surprising that neither one comes with so much as a case. The two make different trade-offs, despite being just a few dollars apart in ticket price. C.H.I.P. comes with built-in storage that rPi lacks, for instance, but the newest Pi, like its forebears, has built in HDMI output. Make's upshot? The cost of owning either a C.H.I.P. or a Pi is a bit more money than the retail cost of the boards. Peripherals such as a power cable, keyboard, mouse, and monitor are necessary to accomplish any computer task on either of the devices. But it turns out the $5 Raspberry Pi Zero costs significantly more to operate than the Next Thing Co. C.H.I.P.

An anonymous reader writes: The Raspberry Pi Foundation unveiled the Pi Zero, a new $5 mini-computer, Thursday morning. The board is the smallest Raspberry Pi yet, containing the first-gen Raspberry Pi's BCM2835 chip (safely overclocked to 1GHz) and 512MB RAM. The latest issue of The Magpi will include a free Raspberry Pi Zero and hits U.K. newsstands Thursday. The announcement came just a few days before the highly anticipated C.H.I.P. $9 mini-computer goes on sale to the public. puddingebola writes: How can they achieve this price, you may ask? "Its 40-pin GPIO header has identical pinouts, although the pads on the circuit board are "unpopulated," meaning you'll have to solder on your own connector. The same goes for the composite video output: The connection is available, but if you need a socket, you must solder it yourself." Dude, go to Radio Shack. Some relevant specs besides those mentioned above, from the blog post linked:

• Micro-SD card slot
• mini-HDMI socket for 1080p60 video output
• Micro-USB sockets for data and power
• Identical pinout to Model A+/B+/2B
• An unpopulated composite video header
• "Our smallest ever form factor, at 65mm x 30mm x 5mm"

New submitter graffitiwriter adds a note that the newest Pi has "already been turned into a retro gaming console. It turns out the Pi Zero is more than capable of running Retro Pie and other emulators, and even has a video output that lets you play games on an old CRT TV."

Lucas123 writes: University of Buffalo physicians and researchers from two institutes working with 3D printer maker Stratasys have successfully 3D-printed anatomically correct models of patients' vascular systems — from their femoral artery to their brain — in order to test various surgical techniques prior to an actual operation. The new 3D printed models not only precisely replicate blood vessels' geometry, but the texture and tissue tension, allowing surgeons a realistic preoperative experience when using catheterization techniques. The printed models are also being used by physicians in training.

angry tapir writes: Possessing files that can be used to 3D print firearms will soon be illegal in the Australian state of New South Wales after new legislation, passed last week by state parliament, comes into effect. Possessing files for 3D printing guns will be punishable by up to 14 years in prison. The provisions "are targeted at criminals who think they can steal or modify firearms or manufacture firearms from 3D blueprints," NSW's justice minister, Troy Grant, said when introducing the bill in the state's lower house on 27 October. "Those who think they can skirt the law will find themselves facing some of the toughest penalties for firearms offences in this country," Grant said.

szczys writes: Eric Evenchick was one of the first backers of the Voltera V-One PCB Printer and just received the 6th device shipped so far. He ran it through its paces and published a review that gives it a positive rating. The hardware uses conductive ink to print traces on FR4 substrate. The board is then flipped upside down and the traces baked on the machine to make them robust. Next the printer dispenses solder paste and the same heating method is used to reflow after components are placed by hand.

itwbennett writes: Researchers at the University of California, Riverside have found that the parts of two common types of 3D printers are toxic to zebrafish embryos. The researchers made this discovery accidentally when a graduate student whose work involves developing tools for studying zebrafish embryos "noticed that zebrafish embryos die after exposure to parts from the 3-D printer." According to the report, "While the embryos exposed to parts from the plastic-melting printer had slightly decreased average survival rates compared to control embryos, the embryos exposed to parts from the liquid-resin printer had significantly decreased survival rates, with more than half of the embryos dead by day three and all dead by day seven. And of the few zebrafish embryos that hatched after exposure to parts from the liquid-resin printer, 100 percent of the hatchlings had developmental abnormalities."

There are 364 more shopping days until next year's Hallowe'en. But while this year's is still fresh in the memory, I'd like to start gathering ideas for next year in the hopes of actually making my neighborhood worthwhile as a trick-or-treating destination, specifically for fun projects to actually give my yard a haunted-house feel. (For the second time in three years, there were zero candy-seekers, and I'd like to convince my neighbors to make the whole block more decorated and spooky, even if we never get all Alek Komarnitsky.) Did you create an animatronic zombie for your yard? Glowing eyes to appear from behind the bushes? Poltergist-style rising graves to frighten the children? Remote-controlled candy dispensers? If you used any kind of complex haunt technology at home, what things worked and what didn't? (I hear too many stories about fog machines leaking to make them sound like a good idea.)

DeviceGuru writes: The immensely popular Raspberry Pi will soon be offered in customized versions, through an exclusive arrangement between Raspberry Pi Trading and Element14. According to the companies' announcement, Element14 will provide design and manufacturing services to OEM customers to create 'bespoke designs' based upon the Raspberry Pi technology platform. That's weird U.K. English for saying that contracts for creating customized Raspberry Pi SBCs will entail substantial NRE fees and 3,000 to 5,000 unit orders, depending on the nature of the customization. The tweaked Pi's are likely to have revised board layouts, additional or alternative functions, interfaces, connectors, and memory configurations, and more. A handful of unsanctioned Raspberry Pi knock-offs have already appeared over the past couple of years, including various Orange Pi and Banana Pi flavors, which certainly didn't involve any 'bespeaking.' More info is at Element14's CustomPi page.

sciencehabit writes: Humans are squishy. That's a problem for researchers trying to construct artificial tissues and organs, and one that two separate teams of engineers may have just solved. Using a dish of goo the consistency of mayonnaise as a supporting 'bath,' a team led by biomedical engineer Adam Feinberg at Carnegie Mellon University in Pittsburgh, Pennsylvania, can now print 3D biological materials that don't collapse under their own weight as they form—a difficulty that has long stood in the way of printing soft body parts (abstract). Once printed, the structures are stiff enough to support themselves, and they can be retrieved by melting away the supportive goo. The other team, from the University of Florida (UF) in Gainesville, has a similar system for printing (abstract), but without the slick trick of the melting goo.

An anonymous reader writes: In just a couple of months, the world's first consumer-ready modular smartphone will start shipping. It's called the Fairphone 2, and it will run Android 5.1. Ars Technica got hands-on time with the device, and they say it works surprisingly well. It's a bit thicker than most modern phones, but that's the trade-off for being able to swap out components. "The smartphone consists of seven major building blocks: the back cover, removable battery, display assembly, main chassis, receiver module, rear camera module, and speaker module. Positioned this way, the components that break most often, like the screen, are isolated for better repairability. In addition to swappable blocks, you can even change things inside the modules: for example, a mic or a speaker. They are press-fit, not glued, and can be extracted with simple tools."

Assembly and disassembly is pretty straightforward, as well: "The modules are held together by Phillips screws marked with blue circles. All screws are the same, so you won't have to remember which one goes where. It's quite hard to make a mistake in the assembling process, however Fairphone promises to release additional manuals and video instructions in collaboration with iFixit." The company also thinks it's important to get the phone's materials and components from ethical sources.

An anonymous reader writes: A research group in the Netherlands has developed a new plastic resin that can destroy most dental bacteria when used for the creation of dental appliances via 3D-printing. The process involves embedding antimicrobial quaternary ammonium salts inside extant dental resin polymers. Since the salts are positively charged, these disrupt negatively-charged bacterial membranes. The process is also being mooted for use in the creation of knee arthroplasties, and in the manufacture of children's toys and food packaging.