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Tuesday 13 August 2013

Radical new icebreaker will travel through the ice sideways


The NB 508 (aka the Baltika) crashes through the ice side-on (Image: Arctech Helsinki Ship...
The NB 508 (aka the Baltika) crashes through the ice side-on (Image: Arctech Helsinki Shipyard)
Given that icebreakers clear a path for other ships by traveling through the ice head-on (or sometimes butt-on), then in order for one of them to clear a wider path, it would have to be wider and thus larger overall ... right? Well, Finland’s Arctech Helsinki Shipyard is taking a different, more efficient approach. It’s in the process of building an asymmetric-hulled icebreaker that can increase its frontal area, by making its way through the ice at an angle of up to 30 degrees.
Arctech refers to the ship as “Icebreaking rescue vessel NB 508,” although according to a report in New Scientist, it’s also known as the Baltika. It’s being built for the Russian Ministry of Transport, and will be used not only for icebreaking, but also for rescue and oil spill cleanup duties in the Gulf of Finland.
The ship will have a breadth of 20.5 m (67 ft) and a length of 76 m (249 ft) (Image: Arcte...
The ship will be moved along by three propulsors on its underside, each one of which can rotate 360 degrees. This means that it will have no problem moving forwards, backwards, or sideways. By hitting the ice at an oblique angle, it will be able to clear a 50-meter (164-foot)-wide path – not too shabby, considering the NB 508 itself will have a breadth of only 20.5 m (67 ft), and a length of 76 m (249 ft).
Three diesel generators will provide a total power of 9 MW and a total propulsion power of 7.5 MW. That should be enough to send it through ice up to 0.6 meter (2 ft) thick when moving sideways, or 1 meter (3.3 ft) when going bow- or stern-first.
The NB 508 was designed by Aker Arctic Technology, and has been under construction at Arctech since June 28. It’s scheduled for delivery to the client by next spring (Northern Hemisphere).

Monday 12 August 2013

Graphene-based supercapacitor a step closer to commerical reality

Monash University researchers have created a compact electrode that uses a liquid electrol...
Monash University researchers have created a compact electrode that uses a liquid electrolyte to maintain space between graphene sheets (Image: Shutterstock)
Graphene-based supercapacitors have already proven the equal of conventional supercapacitors – in the lab. But now researchers at Melbourne’s Monash University claim to have developed of a new scalable and cost-effective technique to engineer graphene-based supercapacitors that brings them a step closer to commercial development.
With their almost indefinite lifespan and ability to recharge in seconds, supercapacitors have tremendous energy-storage potential for everything from portable electronics, to electric vehicles and even large-scale renewable energy plants. But the drawback of existing supercapacitors has been their low energy density of around 5 to 8 Wh/liter, which means they either have to be exceedingly large or recharged frequently.
Professor Dan Li and his team at Monash University’s Department of Materials Engineering has created a graphene-based supercapacitor with an energy density of 60 Wh/liter, which is around 12 times higher than that of commercially available supercapacitors and in the same league as lead-acid batteries. The device also lasts as long as a conventional battery.
To maximize the energy density, the team created a compact electrode from an adaptive graphene gel film they had previously developed. To control the spacing between graphene sheets on the sub-nanometer scale, the team used liquid electrolytes, which are generally used as the conductor in conventional supercapacitors.
Unlike conventional supercapacitors that are generally made of highly porous carbon with unnecessarily large pores and rely on a liquid electrolyte to transport the electrical charge, the liquid electrolyte in Li’s team’s supercapacitor plays a dual role of conducting electricity and also maintaining the minute space between the graphene sheets. This maximizes the density without compromising the supercapcitor’s porosity, they claim.

Sunday 11 August 2013

NIAC 2013 Phase I winners showcases futuristic aerospace concepts

A nuclear-powered spacecraft is one winning concept of NASA's Innovative Advanced Concepts...
A nuclear-powered spacecraft is one winning concept of NASA's Innovative
A dozen inventors have received a chance to demonstrate the potential for their pet space projects as winners of NASA's 2013 Innovative Advanced Concepts (NIAC) Program Phase I awards. The winners were chosen based on their potential to transform future aerospace missions by enabling either breakthroughs in aerospace capabilities or entirely new missions. Read on for a closer look at some of the most promising proposals with a view to how they would work, and where the tricky bits might be hiding.
Each NIAC Phase I winner receives about US$100,000 to spend a year pursuing their ideas, including an initial feasibility study of a novel aerospace concept. The proposals this year include; 3D printing of biomaterials; using galactic rays to map the insides of asteroids; and an "eternal flight" platform that could hover in the Earth's atmosphere.
    The list of this year's awardees includes:
  • Rob Adams of NASA Marshall Space Flight Center – Pulsed Fission-Fusion (PuFF) propulsion system
  • John Bradford of SpaceWorks Engineering – Torpor inducing transfer habitat for human stasis to Mars
  • Hamid Hemmati of NASA Jet Propulsion – Two-dimensional planetary surface landers
  • Nathan Jerred of Universities Space Research Association - Dual-mode propulsion system enabling CubeSat exploration of the Solar System
  • Anthony Longman – Growth adapted tensegrity structures
  • Mark Moore of NASA Langley Research Center - Eternal flight as the solution for 'X'
  • Thomas Prettyman of the Planetary Science Institute – Deep mapping of small solar system bodies with galactic cosmic ray secondary particle showers
  • Lynn Rothschild of NASA Ames Research Center – Biomaterials out of thin air
  • Joshua Rovey of the University of Missouri – Plasmonic force propulsion revolutionizes Nano/PicoSatellite capability
  • Adrian Stoica of NASA Jet Propulsion Lab – Transformers for extreme environments
  • Christopher Walker of the University of Arizona – 10 meter sub-orbital balloon refletor
  • S.J. Ben Yoo of the University of California-Davis – Low-mass planar photonic imaging sensor
Let's take a look at three of the most promising concepts with a view to how they would work, and where the tricky bits might be hiding.

Friday 9 August 2013

Ring Weeder gets to the root of the manual weeding problem


What the weeds look like once pulled out of the ground with Ring Weeder
What the weeds look like once pulled out of the ground with Ring Weeder
In be annoying, especially in an area with a lot of plants. Ring Weeder slips over the user's index finger and allows for precision weed pulling all the way down to the root.
When taking a hands-on approach to weeding, the challenge is to make sure that the pesky invader is pulled all the way out, root intact. If it's not a clean extraction, there's a very good chance that the weed will just grow back and you'll have to try again.
Ring Weeder is worn like a ring over the gardening glove, and has a forked end that the gardener sticks in the ground behind the weed. The offending plant and root are then removed with a smooth dig and lift motion. It's a simple tool, but one that could prove to be a time saver for anyone who does a lot of gardening.
Vincent Suozzi, the creator of Ring Weeder, is seeking funding on Kickstarter. It has already more than doubled its modest funding goal with almost two weeks of the campaign left to run. Early bird pledge levels have all gone, so backers will now need to offer at least US$10 for a single Ring Weeder.
The Kickstarter pitch below provides more information on the Ring Weeder.

Thursday 8 August 2013

Twitter finally gets tougher on death and rape threats


It's been an exceedingly ugly fortnight on Twitter. Following a successful campaign orchestrated by journalist and feminist Caroline Criado-Perez to have a woman reinstated on Bank of England banknotes, she has been subjected to a relentless campaign of harassment, with rape and death threats being received by Criado-Perez at a rate of nearly one per minute on July 24, the day it was confirmed that her campaign had been a success. After being the platform for sustained threats and abuse for almost two weeks, Twitter has finally begun to act.
London MP Stella Creasy and television presenter and historian Mary Beard are among those who, like Criado-Perez, have received misogynistic death and rape threats through the social messaging service. Creasy's apparent crime against mankind was to post updates to Twitter in support of Criado-Perez. Beard (a long-time victim of online abuse) was to join in with a one-day boycott of the service on Sunday (proposed by columnist Caitlin Moran, who has also been on the end of threats and abuse), but broke silence to report yet more threats.
By July 30, two men in their 20s had been arrested in connection with harassment and malicious communication, but these arrests are only the tip of the iceberg. Hadley Freeman, India Knight, Grace Dent, Laura Penny and Catherine Mayer have also received threats via Twitter in recent days.
Twitter itself was slow to respond. After Criado-Perez contacted Twitter's Manager of Journalism and News, his remarkable response was to temporarily lock his own account so that his updates would only be seen by people already following him (and new followers would need his permission to see them). It took Twitter's UK General Manager Tony Wang a further week to apologize on Twitter, but in a post to Twitter's UK blog that same day (Saturday), Wang and Senior Director of Trust and Safety, Del Harvey, listed a number of measures intended to address the problem.
Perhaps most notable is that Twitter has introduced a "report tweet" button in the latest version of the official iOS app and on the mobile version of the website. The button should appear in the official Android app and on the main website during September. This would appear to be a direct response to an online petition with over 120,000 signatories which called for exactly this.

Tuesday 6 August 2013

O2 Cool hydration backpacks offer both sipping and cooling mist



O2 Cool showed its new backpack line at the 2013 Outdoor Retailer Summer Market
O2 Cool showed its new backpack line at the 2013 Outdoor Retailer Summer Market
Wherever you weigh in on the global warming debate, it would seem that folks are hotter than ever this year. Misting and cooling products have been a trend over the past few months, with launches of products like the Aquabot and Q-FOG. The self-assigned leader in cooling products has decided to get in on the action with its own twist on the theme. It's incorporated a misting system into a line of hydration packs, so the reservoir of water on your back can both quench and cool.
O2 Cool packages its patented Mist 'N Sip technology into a line of backpacks. Instead of the simple bite valve common on other hydration packs, the Mist 'N Sip includes a push-button misting system that allows you to squirt yourself with a cooling spray. Of course, you can also drink out of it. The valve is held to the pack by a magnetic attachment, making it easy to pull on and off. The misting attachment can be removed and replaced with a standard bite valve when it's not needed.
The removable Mist 'N Sip attachment lets you mist yourself with the press of a button
The average hydration pack is easy to drink out of, but harder to use as a cooling device. You can dump the water out of the fill opening, wasting a lot of water in the process. You can shower yourself by pulling the bite valve out of the tube and holding the tube over your head like a hose. Both those less-than-ideal options require stopping and fiddling around with the pack, whereas the O2 Cool mister is simple enough to use on the go.
Geigerrig has popularized pressurized hydration packs over recent years. While we have not had the chance to compare them head to head, the Mist 'N Sip system appears simpler and lighter than Geigerrig's hardware, as it doesn't require a separate pump. It provides a gentler mist as opposed to the more powerful spray of the Geigerrig, so it won't be useful for things like spray-cleaning and rinsing, just cooling.
O2 Cool will launch the Mist 'N Spray packs in a number of different styles, from minimalist hydration packs to larger daypacks. The 2- and 3-liter water reservoir packs will range between US$60 and $80.

Saturday 3 August 2013

Nukes, kids and the Cold War: In conversation with the creator of Nukemap3D

Nukemap3D produces virtual mushroom clouds
Nukemap3D produces virtual mushroom clouds

Feeling cheerful? Why not remedy that by going online and seeing what would happen if someone dropped an H-bomb on your hometown? The browser-based Nukemap3D uses a Google Earth plug in to produce a 3D graphic of the effects of a nuclear weapon on your city of choice. All you have to do is pick your target, select your favorite thermonuclear device, and you can see an animated mushroom cloud rising over ground zero. Gizmag caught up with the creator, Dr. Alex Wellerstein, to talk about Nukemap3D.
Wellerstein is Associate Historian at the Center for History of Physics at the American Institute of Physics in College Park, Maryland, and specializes in the history of nuclear weapons and nuclear secrecy. He has taught courses in his specialty at Harvard and studies the question of secrecy in the story of nuclear weapons. In a telephone interview, he gave us the lowdown on Nukemap3D. Where did the idea for Nukemap come from?
Nukemap came out of my experience of trying to teach about [the history of nuclear weapons] to undergraduates, who completely missed the Cold War and aren't thinking about nuclear weapons at all and don’t have much cultural association with them.
So the Cold War and Hiroshima were all ancient history for them?
It was really ancient history. I’m not a very old person myself. I’m in my early thirties and I have memories of the Berlin Wall coming down. My wife is a high school teacher and she’s actually had students say “oh, my God, you were alive during the Cold War!” like it was somebody saying that they fought in World War One. So, one of the difficulties of teaching the subject is getting the students to take things seriously because a lot of the concerns of the 1960s or even the '80s were very remote and very unrealistic and not something they can easily relate to. They ask, “why were people afraid of Communism?” My question was, “how can I make that fresh for somebody, so they can relate it to the big issues of the present and the issues of the past.

Friday 2 August 2013

RHex robot shows off Parkour moves

X-RHex-Light shows off its obstacle beating agility
X-RHex-Light shows off its obstacle beating agility
Parkour is all about hurling yourself quickly and efficiently past whatever obstacles are in your path while maintaining as much momentum as possible. It's a challenge for humans, so how would robots fare? In an effort to push the boundaries of robotic agility, researchers at the University of Pennsylvania decided to find out by teaching their RHex robot some Parkour moves.

RHex is designed to be an all-terrain walking robot that can deal with curbs, stairs, puddles, rubble, sinkholes, and other obstacles to accomplish rescue missions or carry out sensor surveys in inhospitable areas. While the RHex has been around for over a decade, a modified version called XRL (X-RHex-Light) is now being taught some new tricks by UPenn's Professor Daniel Koditschek.
XRL hexapod robot at rest (Photo: UPenn)
XRL differs from its earlier relatives by using lighter materials and simpler fabrication methods. A complete shell of carbon fiber panels surrounds the XRL frame, and it has only a single battery compartment. The XRL is 51 cm (20 in) long, 40.5 cm (16 in) wide, and the body alone is 10 cm (four inches) in thickness. The diameter of the six flexible rotating legs is 17.5 cm (6.9 in), giving the XRL ground clearance of 11 cm (4.3 in) regardless of which end is up at the moment. It's weight including battery pack is 6.7 kg (14.7 lb).
For motive power, the XRL depends on two 50 watt brushless pancake electric motors by Maxon (one for each leg). The actual peak power for these motors is about 380 watts, or about half a horsepower. These motors are geared down by a factor of either 18:1 or 23:1, depending on the nature of the landscape on which it is being tested. Powered derives from a ten-cell lithium polymer battery with a capacity of 83 W-hr at 37 volts. Battery weight is about 0.6 kg (1.3 lb).
XEL leg response to being driven over different landscape textures (Photo: UPenn)

Thursday 1 August 2013

How to make Windows 8 Metro open files on the desktop


Tired of Windows 8 opening your files in metro-style apps? Here's how to make them open in...
One of the more annoying behaviors in Windows 8 and 8.1 is that all of your files are set to open in native Metro-style apps. For instance, if you're working on the desktop and view a picture or PDF, it opens full screen in the associated app. If you're working on a traditional computer without a touchscreen, this is frustrating to say the least. Especially if you're on a laptop with a single screen. Here's how to take control of your Windows 8 system and make your files open in the desktop programs you want them to.

Change default program file associations

Note: Here I am using the Window 8.1 preview but the process is virtually identical in Windows 8.
From the Windows start screen type: default programs and select the Default Programs icon under results.
Search Windows 8 or 8.1 for default programs, or you can also find it in Control Panel
The Default Programs windows will open on the desktop. Here you have a couple of ways to change the default programs that open your files. The easiest is to click "Set your default programs."
Set your default programs is the quickest way to set file associations
Now select the program you want to set as your default for your files. Here I'm selecting Windows Photo Viewer because I can't stand it when I want to view an image and the Photo app opens up. This way it will open on the desktop like it used to.

Wednesday 31 July 2013

Portable fat breathalyzer indicates if you’re burning fat

The portable prototype that detects if you're burning fat by analyzing your breath (Photo:...
The portable prototype that detects if you're burning fat by analyzing your breath (Photo: NTT DOCOMO)
rtage of breathalyzers capable of detecting if you’ve had one too many drinks, a prototype device developed by researchers at NTT DOCOMO Research Laboratories analyzes your breath to detect if your body is burning fat. Besides letting users know if that exercise regime is actually shedding some pounds, its creators say the portable sensor could be helpful for diabetics and those trying to lose weight manage their daily diet. Rather than detecting exhaled fat particles, the device detects the levels of acetone on one’s breath. Although primarily produced in the blood when fat is broken down, acetone is also expelled through alveoli in the lungs and is therefore present in exhaled breath, making it a good indicator of when the body has begun to break down fat.
The device, which is 10 cm (4 in) long, weighs 125 g (4.4 oz) and is powered by two AA batteries, features a pressure sensor to detect when someone breathes into it, and two types of semiconductor-based gas sensors that are capable of detecting acetone concentrations of 0.2 to 50 parts-per-million. After detecting the exhaled breath, the device calculates the acetone concentration levels and transmits the results, either via cable or Bluetooth, to a smartphone within 10 seconds.
To test the device, the researchers enlisted 11 men and six women volunteers. All were healthy but had body mass indexes (BMIs) above the Japanese average. The volunteers were split into three groups with the first carrying on their normal routine without any calorie restrictions or exercise requirements.
The second group was required to perform 30 to 60 minutes of light exercise, such as jogging or fast walking, per day without any calorie restriction, while the third group had their daily calorie intake restricted while carrying out the same exercise routine as the second group.
Each day before breakfast for a period of 14 days, all volunteers measured their body weight, body fat percentage and breath acetone concentrations. In addition to using the prototype device to measure the acetone concentrations, a standard measuring instrument was used for comparison.
The results showed that the breath acetone concentrations remained constant for those in the first two groups who were not able to lose significant amounts of fat, while the volunteers in the third group showed a significant increase in their breath acetone concentrations and were able to lose “significant amounts of fat.”
“Because obesity increases the risk of lifestyle-related illnesses, enabling users to monitor the state of fat burning could play a pivotal role in daily diet management,” says Satoshi Hiyama, principal investigator of the study. “Current standard methods, however, are still not practically suitable for point-of-care instrumentation for diet-conscious people who wish to monitor their own fat metabolism at home or outside.”

Tuesday 30 July 2013

One Wybelenna home is for the birds

The One Wybelenna home (Photo: Scott Burrows)
Located in Brisbane, Australia, One Wybelenna is a luxurious property designed to achieve a high level of sustainability – as evidenced by its turf roof which not only provides insulation but also serves as home for a local species of bird. The stone cottage, originally designed by Australian architect Robin Gibson, was recently extensively renovated by Shaun Lockyer Architects with striking results.

During the renovation, Shaun Lockyer Architects made full use of all available stone from the cottage which previously occupied the plot, and One Wybelenna's guesthouse is actually built upon the basic dimensions of the former dwelling.
The main building is rather more ambitious however, and is heavily influenced by late Australian architect Richard Neutra. This certainly shows, and One Wybelenna bears more than a passing resemblance to the iconic Californian Kaufmann Desert House that is amongst Neutra's most recognized works.
One Wybelenna was completed last year (Photo: Scott Burrows)
One Wybelenna measures 1,012 sq m (3,320 sq ft), and was constructed with a view to being as environmentally friendly as possible, as per the client's wishes. A 140,000-liter (37,000 US gallon) swimming pool was retained from the original property and repurposed as a water tank (a new pool was also installed), and 300 new trees were planted during the build.
In addition, the property was designed with some thought to passive cooling, taking into a account the northern sun and prevailing wind patterns. Low-e (or low emissivity) glass has been used to reduce the sun's heating effect on the home, and thick stone walls help to maintain a steady temperature. Cross-ventilation also features throughout the property.
Solar panels produce 15 kW of electricity, and the home was built in part using recycled timber. Perhaps the most charming green feature though, is the turf roof which serves not only as insulation, but also as home to a family of local plover birds.

Monday 29 July 2013

2013 Nexus 7 vs. iPad mini


Gizmag compares the specs (and other features) of the new Nexus 7 and the aging iPad mini
If you're shopping for a smallish tablet, we wouldn't blame you for narrowing it down to the iPad mini and Google's new Nexus 7. But how do you choose between the two? Let Gizmag lend a hand, as we compare the specs (and other features) of the two mini-tablets.

Size

The two tablets are roughly the same height, but are proportioned differently
The two tablets are roughly the same height, but are proportioned differently. The new Nexus 7 is 16 percent narrower than the iPad mini. The Google/Asus tablet is also a bit thicker, by 21 percent.

Weight

The Nexus 7 is a little lighter
That narrower build helps the 2nd-gen Nexus 7 to tip the scales at 6 percent lighter than the iPad mini.
If you look at weight relative to surface area, though, the iPad mini actually comes in at about eight percent lighter. So it's possible the iPad mini will, in a sense, feel lighter in hand.

Build

It's matte plastic vs. aluminum with the Nexus 7 and iPad mini
Like the original Nexus 7, the new model sports a plastic construction. The updated tablet does skip out on the rubbery backing of the 2012 model though: this one has a smooth matte finish.
The iPad mini is made of Apple's favorite, anodized aluminum.

Sunday 28 July 2013

MagBak just might be the world's thinnest iPad mount

The MagBak can be mounted to any metal surface and others with the help of the metalic O-R...
Mounts for iPad are thick on the ground, but the creators of MagBak are looking to stand out from the crowd with a slimmed down approach to attaching the tablet to any surface that also keeps the Smart Cover closed and provides a convenient grip. In fact, the MagBak so thin, it doesn't even look like it's meant to mount an iPad at all, which is exactly what the designers were aiming for.
The MagBak is basically two silicone-coated magnets that attach directly to the back of the iPad. These allow the device to be attached to almost anything made of metal. For other surfaces, a metal O-ring with 3M adhesive backing is included.
The magnets will also hold the Apple Smart Cover open and prevent it from flapping around while the device is in hand. They are also coated in silicone, which should make the iPad easier to carry around, and keep it from sliding on smooth surfaces. Additionally, the 0.5mm thick pads keep the back of the iPad slightly elevated, providing a little protection.

Saturday 27 July 2013

Survival Shovel: "Multi-tool on steroids" delivers a dozen functions 0 inShare

AceCamp Survival Multi-Tool ShovelMulti-tools have come a long way. At one time they were simply pocket knives with a handful of other functions. Today they're tooled smartphone cases, multifunctional snowboards, bike-specific Swiss Army tools and bottle-opening wallets. The Survival Multi-Tool Shovel from AceCamp is advertised as a multi-tool on steroids thanks to a design that incorporates wilderness essentials like a hatchet, shovel, compass and bottle opener.
We first ran into AceCamp a year ago at the Outdoor Retailer Summer Market, where it was showing a plastic firestarter called the FlameStick. For this year's Summer Market, AceCamp is showing a larger line of survival hardware, which includes the Survival Multi-Tool Shovel.
AceCamp Survival Multi-Tool Shovel
The 11.4-oz (312-g) Survival shovel appears to be an average folding shovel, good for digging a wilderness toilet or firepit. What makes this one different from the rest of the folding shovels you find at outdoor superstores is its 11 additional functions. Look closely and you'll see that the shovel packs more than just the usual blade – on one side is a saw blade, and on the other, a hatchet blade. The shovel blade also has a hammer, nail puller, wrench and bottle opener.
Those functions are enough to push the AceCamp's shovel past nearly any other shovel in the function department, and that's just on the outside. Remove the compass cap on the bottom of the handle and a small knife blade, fishing line and hooks, and matches fall out. So this shovel not only digs you a fire pit, it cuts the wood, starts the fire, catches the fish to fry over that fire, and pops your beer while that fish sizzles. Cutting wood and fishing might be a little awkward with the shovel's hardware, but at least you can give it a go.

Friday 26 July 2013

Leap Motion controller released at last

Leap Motion has just released it motion sensor, and launched its AirSpace app store
Leap Motion has just released it motion sensor, and launched its AirSpace app store
Hot on the heels of the Leap Motion Controller, which began shipping last week, Leap Motion has released the accompanying software. The software allows people to control their computers with natural movements, detecting both hand and finger movements. In addition, the company launched its Airspace store which includes apps specifically designed for use with the device.
The apps available on the Airspace Store are designed for the motion sensor technology. The store currently has more than 75 free and paid apps that cover a broad range of categories, from educational apps to (of course) plenty of games. More apps are expected and the collection should grow as more developers are brought on board. You'll need a fairly modern Mac or PC for the Leap Motion Controller to work. It requires a Mac capable of running OS X 10.7 or higher, or a PC with an Intel Core i3, AMD Phenom II, 2 GB of RAM and Windows 7 or 8. Apparently it won't just be for desktops either. The computer maker ASUS is partnering with the company to embed the sensor in high-end laptops and All-in-One (AIO) systems.
The Leap Motion sensor works on Macs running OS X 10.7 or higher, and PCs with Windows 7 o...
This looks like some exciting technology, even if it is a version 1.0 product. The company co-founder claims the sensor can track movement in both hands and all fingers with up to 1/100th millimeter accuracy with no noticeable latency.
If you didn't pre-order, the device is available to purchase on the Leap Motion website for US$79.99. Beginning July 28th, the Leap Motion Controllers will be in Best Buy stores in the US and also available in the UK from Amazon.
A demo of the technology can be seen in the video below.

Thursday 25 July 2013

MagPen offers a new take on the stylus

The MagPen contains a magnet which is detected by the phone's existing magnetometers
The MagPen contains a magnet which is detected by the phone's existing
The humble smartphone stylus may soon be gaining new features, thanks to a seemingly simple piece of technology. Developed by Korea Advanced Institute of Science and Technology (KAIST) PhD student Sungjae Hwang, the MagPen is essentially just a plastic tube covered in conductive tape, with conductive rubber tips at either end and a coin-shaped magnet inserted half-way down its length. Via a custom app, however, magnetometers already present in the phone are able to determine where that magnet is in relation to the screen, and respond with a variety of drawing and writing functions.
Any existing smartphone or tablet should be compatible, as long as it already contains the magnetometers and associated electronics that most such devices use as a compass.
By sensing the proximity of the pen's magnet, the magnetometer-enabled app is able to tell not only how close the pen is to the screen, but also where its tip is on the screen, the angle at which it’s being held, and even the amount of finger pressure that’s being exerted on the glass. Different “ink” colors can even be chosen by going off the screen, and dragging the pen’s tip across the phone’s frame.
Different “ink” colors can be chosen by going off the screen, and dragging the pen’s tip a...
Because the app can differentiate between the magnetic qualities of multiple MagPens, users could alternately change colors by using different pens.
The app can also tell when the magnet (and thus the pen) has been spun around, by detecting which pole is closest to the phone. This allows for extra functionality, letting one end of the pen be used for writing and the other for erasing, as an example. In another mode, turning the pen around allows users to change between different line widths – this can also be done simply by pressing harder when drawing. In fact, the pen can be spun in three different fashions, each of which allows the user to access different functions.

Tuesday 23 July 2013

NapAnywhere: A flat-out new take on the neck pillow


The NapAnywhere is designed to help commuters sleep anywhere
The NapAnywhere is designed to help commuters sleep anywhere
or a long flight, and you just can't seem to get your head to stay upright so you can get a few hours of sleep to pass the time. The fact is, airplane seats aren't built for comfortable sleeping. A new product called NapAnywhere is designed to rectify the situation by supporting your head and allowing you to sleep comfortably, even while sitting straight up. If you've ever been to an airport, you've probably seen some neck pillows designed to help support your head while you slumber. According to its creator Ravi Shamaiengar, these were his inspiration for the NapAnywhere. "Like many, I would use a U-shaped neck pillow. Unfortunately, the support I needed just wasn't there," he said. So, he sought to design one that actually had the support he desired.
NapAnywhere starts as a flat disc. Once opened, the top of the pillow forms a shelf where the user rests his or her head while sleeping. The bottom curves over the user's shoulder. The area in between is what allows the weight to be distributed around the shoulder, and thus what prevents the head from drooping, which could lead to neck cramps or an annoyed neighbor. The video below demonstrates using the NapAnywhere.
The pillow also comes with an adjustable strap, which exists to help hold everything in place while sleeping.
Each side uses two different materials. The top uses material that is warm to the touch, and the other side feels cool, which could add a little bit of extra comfort to those difficult sleeping locations. It only weighs 8 oz (230 g), and it folds flat, so carrying it around should not be an issue.
Ravi Shamaiengar is seeking funding for his NapAnywhere on Kickstarter. The minimum pledge required to receive a pilloe is US$39 while the remainder of the early bird specials are available. Once those sell through, the price jumps to $44.
The Kickstarter pitch below provides more information.

Monday 22 July 2013

SmartPlayhouse: When wendy houses and contemporary architecture collid

SmartPlayhouse's Illinois model
SmartPlayhouse's Illinois model
Joking aside (thank goodness; signing off – Ed), the SmartPlayhouse is precisely that: a place for children aged 2 to 10 to be left alone to play and have fun. There are four outdoor designs to choose from, named Casaforum, Illinois, Kyoto and Hobikken, the last two of which are also available as indoor models.
The Hobikken (top left), Casaforum (top right), Kyoto (two-story model, bottom left), and ...
The Hobikken (top left), Casaforum (top right), Kyoto (two-story model, bottom left), and Illinois (bottom right)
SmartPlayhouse claims that the outdoor houses are built with high quality weather-resistant materials that should stand the test of time (and small stamping feet). To protect against the elements, doors and windows are sealed, and the whole house raised above the ground.
SmartPlayhouse has thought hard about safety. Windows are acrylic, and doors and windows shut using magnets. Standard versions come without locks, though outside of the US, a lock can be added as an option. It can only be secured from the outside.

Sunday 21 July 2013

In Orbit art installation offers spidery spacewalk experience

Between the nets, six inflatable PVC spheres up to 8.5 m (30 ft) in diameter, divide the s...
Between the nets, six inflatable PVC spheres up to 8.5 m (30 ft) in diameter, divide the space and allow visitors to move freely (Image: Studio Tomás Saraceno ovides 2,500 sq m (27,000 sq ft) of steel wire safety nets stretched between three different levels below the glass cupola of the piazza. Between the nets, six inflatable PVC spheres up to 8.5 m (30 ft) in diameter divide the space and allow visitors to move freely around each "net" floor.
"To describe the work means to describe the people who use it – and their emotions," explains Tomás Saraceno. "For me, the work visualizes the space-time continuum, the three-dimensional web of a spider, the ramifications of tissue in the brain, dark matter, or the structure of the universe. With ‘in orbit,’ proportions enter into new relationships; human bodies become planets, molecules, or social black holes."
The installation is suspended 20m (60 ft) above the piazza (Image: Studio Tomás Saraceno ©...
In the three years of planning for the installation, Saraceno consulted with engineers, architects, and spider experts (arachnologists). Saraceno has also established a study of living spiders and their delicate web formation in the artist's room of the gallery's K21 Ständehaus building to inform the design process. Saraceno has created a formidable web as a result of these studies, the net structure alone weighs 3000 kg (6,600 lb), and the largest of the spheres weighs 300 kg (660 lb).

Saturday 20 July 2013

New screen tech displays clear 2D and 3D images at once

Like her mittens, the 3D glasses might one day be optional (Photo: Miki Yoshihito)
Like her mittens, the 3D glasses might one day be optional (Photo:University of California Santa Cruz have developed a 3D display which can also be viewed in 2D without glasses, and without the blurred effect caused by overlapping images. Though, as you'd expect, the screen displays both left and right images, it also emits a mysterious third image which is the key to the technology.
Regardless of whether active or passive 3D technology is at work, glasses-based 3D televisions rely on those glasses to selectively show each eye one of two pictures displayed on the screen. Because the two images are shot from slightly different perspectives (mimicking the slightly different views we'd see with each eye), our brain is able to put the two images together, creating the three-dimensional effect. But without glasses, both eyes see both pictures at once, creating the blurred effect that renders glasses-based 3D pictures all but unwatchable without the appropriate eyewear.
Not so UCSC's new technology, which cleverly uses a third image which remains apparently unseen to viewers, whether or not they're wearing 3D specs. Viewers without glasses will only see the left image because the right is cancelled out by the third, which is an exact negative of the right. 3D glasses mask the third image altogether.
The technology isn't perfect because it compromises the available contrast to 2D viewers and so, as a compromise, the researchers show 3D viewers a dimmer image to the right eye and a brighter image to the left. According to a UCSC press release, the researchers found that brightness ratios between 20 and 60 percent were "acceptable" to viewers of both 2D and 3D pictures.
The researchers' prototype was "built" using an ordinary 3D projector, with the negative image overlaid using a separate 2D projector. The researchers used active 3D glasses, in which shutters in the left and right eye open and close in sync with the on-screen images, creating the 3D effect. The synchronization additionally meant that the the 2D negative of the right image remained unseen by glasses wearers.
UCSC student Jing Liu is looking into the possibility of commercializing the technology.

Friday 19 July 2013

Miniaturized butane fuel cell system enables new USB battery charger

The Nectar fuel cell-powered USB charger converts butane into electricity
The Nectar fuel cell-powered USB charger converts butane into electricity
Burning fuel results in a good deal of heat. While this is a useful property, small amounts of heat are very difficult to efficiently convert into electrical energy. This is where fuel cells enter the picture. In the simple example shown below, a solid oxide fuel cell (SOFC) similar to that in the Nectar takes in hydrogen and oxygen, and produces electricity and water. Where does the electricity come from? Let's track the reactions taking place in the fuel cell.
Operating principles for the Nectar solid oxide fuel cell
We provide the fuel cell with hydrogen gas on the anode side and oxygen (usually the oxygen in air) on the cathode side. In the cathode, the oxygen molecule splits apart and doubly charged negative oxygen ions are formed. The electrons needed to form the oxygen ions come from the anode of the cell through an electrical load. Those electrons are released in the anode by the reaction of the hydrogen fuel with the oxygen ions to form water.
The role of the electrolyte here is key as it allows the oxygen ions to easily pass between the cathode and the anode, but blocks electrons from passing. This forces these electrons to pass through the external electrical load, where their energy can do work. In the end, the properties of the electrolyte allow a fuel cell to generate electricity. A typical electrolyte for an SOFC is ceramic, a common example of which is yttrium-stabilized zirconia (YSZ).
Fuel cells typically provide less than a volt of electric potential. In the basic reaction for an H2O2 fuel cell, an oxygen ion, a hydrogen molecule, and two electrons react to form a molecule of water. The overall energy from burning a single molecule of hydrogen to form water divided by the charge of a pair of electrons is the theoretical maximum voltage of the fuel cell, which is about 1.23 eV in this case. However, in practice and under load the actual voltage is 0.7 to 0.8 V owing to a number of inefficiencies dwelling within a practical fuel cell.
The Nectar fuel cell system with butane pod
In developing the Nectar, the team at Lilliputian Systems decided to use the highest energy density fuels, reaction conditions that give the highest possible system efficiency, and to make a fuel cell of large energy density, so that the Nectar beats the performance of a battery in the real world. They chose butane as a fuel, a SOFC design, and to minimize system size by using MEMS manufacturing techniques. None of these selections lead toward simple engineering problems.

Thursday 18 July 2013

Lightning's Electric Superbike takes 2013 Pikes Peak International Hill Climb

Carlin Dunne takes his Lightning Electric Superbike up Pikes Peak (Photo: Lightning Motorc...
Carlin Dunne takes his Lightning Electric Superbike up Pikes Peak (Photo:
The Lightning Motorcycle Electric Superbike seems to collect records as easily as falling off a log. It holds the current world records for fastest production motorcycle (189.086 mph / 304.304 km/h), and in a tweaked version for fastest electric motorcycle (215.960 mph / 374.554 km/h). While setting this latter record, the equivalent fuel mileage was still better than 50 mpg. Now it also holds the record for fastest ascent of Pikes Peak by an electric motorcycle. More importantly, it is the first electric motorcycle to win over a field of gas-powered motorcycles.
Carlin Dunne, who rode the Superbike to two-wheel victory at Pikes Peak this year, is no stranger to records himself. He has now won the Pikes Peak climb three years in a row, and owns the all-time record of nine minutes and 52.819 seconds for his performance in 2012 on a Ducati Multistrada 1200.
A beautiful beast of a bike (Photo: Lightning Motorcycle Corp.)
Of course, the Pikes Peak Climb is ideally suited to electric bikes. It takes place at altitudes that make regular gasoline engines cough and wheeze. But as the twists and turns of the course are a bit more difficult on a bike with a battery pack weighing about 250 pounds (110 kg), what the Superbike wins in the straights might be lost in the roundabouts. But not this year.
The Electric Superbike boasts an amazing set of specs. The motor is an internal permanent magnet Remy HVH250, an oil-cooled electric topping out at 10,000 rpm that pumps out in excess of 125 hp (92 kW). The exact value isn't specified, and the HVH250 can put out 230 hp (170 kW) at higher voltage than used in the Superbike. The basic Superbike comes with a lithium-ion battery pack that holds 12 kWh of energy at 370 volts, but a larger pack can be chosen. The total weight of the bike is just under 500 pounds.
Lightning claims 0 - 100 mph (160 km/h) time of 3 seconds, and acceleration from 100 mph to top speed (166 mph for the basic Superbike) in less than ten seconds.
The Lightning Electric Superbike concept drawing by Glenn Kerr (Photo: Lightning Motorcycl...
The Superbike uses a monocoque design by Glenn Kerr, wherein the battery pack and motor serve a dual function as the primary stressed elements of the chassis, a design whose equivalent appears in most large gas-powered bikes. The swingarm of the Superbike is directly connected to the rear of the motor.
Lightning's Superbike is equipped with user-programmable regenerative braking, allowing the batteries to be charged whenever the throttle is closed and the brakes applied. The effect on the ride is said to closely replicate the engine braking effect characteristic of gas-powered bikes. The programming allows the user to balance the braking between maximum range and driving style.

Wednesday 17 July 2013

Peugeot targets urban commuters with AE21 Hybrid electric bike

Peugeot's AE21 Hybrid electric bike previewed last week at the 'What's Next' show
Peugeot's AE21 Hybrid electric bike previewed last week at the 'What's Next'
Peugeot actually began manufacturing bikes in 1882 and only branched out into internal combustion engine-powered automobiles in 1890 after dabbling with a three-wheeled steam-powered car the previous year. The car and bike divisions were split in 1926, with Cycles Peugeot building up an impressive racing heritage thanks to the sponsoring of various events and riders. In 2011, Peugeot revealed plans to revamp and relaunch the Cycles Peugeot brand in a partnership with Cycleurope.
Set to join Peugeot’s Allure line, the AE21 is a compact ebike aimed at urban commuters with a design that integrates a lithium-ion battery into the bike’s aluminum Clever Case frame. This also provides space at the center of the bike for a laptop bag and ABUS Bordo folding lock. To allow the bike to be stored against a wall, the bike also features folding handlebars and pedals.
The frame of Peugeot's AE21 Hybrid electric bike has space for a laptop and ABUS Bordo fol...
While the bike previewed at the “Who’s Next” show last week had the electric motor located in the front wheel, a Peugeot representative told us that when the bike is commercially launched in September at the Salon Du Cycle in Paris there will be two versions: one with the wheel hub motor and another with a belt-drive motor. Both will also be offered with two, as yet undisclosed, battery capacities. The battery can be recharged while still on the bike, or removed so it can be recharged inside while the bike waits outside.

Tuesday 16 July 2013

Portable SunSocket Solar Generator incorporates on-board tracking

The SunSocket uses mono-crystalline solar panels
To get the most out of solar panels they need to be facing the right way. Systems that track the sun are often used in large solar power stations and some larger home installations, but most flat panels for portable applications just lie there. Colorado-based Aspect Solar has come up with the SunSocket Solar Generator, a lightweight, portable, self-contained solar power system consisting of a battery and solar panels that brings the advantages of automatically tracking the Sun to small applications.
On the outside, SunSocket looks a bit like something out Q’s laboratory. It’s a metal case weighing 25 lb (11.3 kg) hiding high efficiency mono-crystalline 60 Watt photovoltaic panels that charge a 20 Ah lithium iron phosphate (LiFePO4) battery that can sit idle for years. According to Aspect, it only discharges zero to two percent per month when left on its own. The entire system is self contained, needing no adapters, batteries, or cords.
So far, it seems like any other portable solar power system, but opening the lid reveals something more. Inside, there’s an expanding solar panel that slides its wings open to 44.8 in (113.7 cm). You flip up the panel, slide out the wings then, when you press the power switch, the panels automatically track the Sun. This increases performance, allowing the 250 Wh battery to fully charge in only five hours.
The SunSocket panels slide together for storage
In addition to the panels and battery, the SunSocket also has a 100-watt inverter with universal plug, a 12-volt plug, USB plugs, charge meter, and a port for charging the battery from the mains.
In good sunlight, the SunSocket can power small devices like phones and tablets for an unlimited time and for 25 hours on battery with no sun, though as you approach the maximum output the battery is fighting a losing battle, and at a load of 100 watts in good sun it can only run for 4.2 hours with panels and battery together. One drawback to note is that the system is not weatherproof and the manufacturer warns that it should be used in dry conditions only.
The SunSocket sells for US$1,499.

Monday 15 July 2013

On the ball: Eone debuts a tactile watch for the visually impaired


Watchmaker Eone's debut timepiece, the Bradley, is aimed at the visually impaired and indi...
Unfortunately, there aren't many options available for the visually impaired when it comes to timepieces. While a number of talking watches and braille wristwatches with removable covers are already on the market, those often draw attention to a person's disability. That's why watchmaker Eone's debut timepiece, the Bradley, indicates the time with magnetic ball bearings that can be read subtly by touch.
Bradley Snyder, a naval officer turned paralympic swimmer who lost his eyesight after an explosion in Afghanistan, provided the inspiration and namesake for the tactile watch. The design team built the first prototype of the watch mechanism from Lego pieces and worked extensively with visually impaired testers to manufacture a functional and appealing timepiece.
Instead of the usual analog watch hands, which can lose their setting if touched, the Bradley measures the time using two ball bearings contained within special channels: one on the front for the minute and one on the side for the hour. Each bearing is held in place with a magnet connected to a precise Swiss quartz watch movement inside the body. Like most other watches, the time is set by turning the crown on the side.
To read the time, the wearer feels where the balls are located in relation to the notches on the face, which are distinguishable through different shapes and textures. Even if a person accidentally nudges the ball bearings out of place when touching them, a quick shake of the wrist will lock them back to the correct time. As an added bonus, the watch is waterproof up to 50 m (164 ft), so users can still keep track of time while showering and swimming.
To read the watch, the wearer just needs to feel where the balls are located in relation t...
The Bradley has been crafted with a minimalist design so it can be worn in almost any situation and with any outfit. The 40 mm x 11.5 mm (1.6 in x 0.5 in) body of the watch is made of durable titanium and designed to be easy to clean – an important feature for something that will be handled all day. Users will have a choice of watch bands made of either a stainless steel mesh or a combination of fabric and leather colored mustard yellow, olive green, or silver blue.
As the designers have pointed out, the Bradley was made with the visually impaired in mind, but people with full eyesight could get just as much use from a watch that can be read by hand. Aside from a distinctive style, the watch makes it easier to surreptitiously check the time in a dark movie theater or boring business meeting, for example.
Eone recently launched a Kickstarter campaign to bring the Bradley into mass production, which received more than double its original US$40,000 goal from backers in less than a day. The first batch of watches has already sold out, but anyone who contributes $128 or more will receive a watch from the second batch that is due to ship in December.
For now, though, check out the video below to see how the designers developed the tactile Bradley wristwatch