#Earth s inner core spins faster than rest of planet University of Leeds rightoriginal Studyposted by Ben Jones-U. Leeds on September 17 2013the Earth s
inner core made up of solid iron uperrotatesin an eastward direction while the outer core comprising mainly molten iron spins westwards at a slower pace.
Although Edmund Halley who also discovered the famous comet showed the westward-drifting motion of the Earth s geomagnetic field in 1692 it is the first time that scientists have been able to link the way the inner core spins to the behavior of the outer core.
The planet behaves in this way because it is responding to the Earth s geomagnetic field.
The findings published in the Proceedings of the National Academy of Sciences help scientists to interpret the dynamics of the core of the Earth the source of our planet s magnetic field.
In the last few decades seismometers measuring earthquakes travelling through the Earth s core have identified an eastwards
or superrotation of the solid inner core relative to Earth s surface. he link is explained simply in terms of equal and opposite actionsays Philip Livermore of the School of Earth
and Environment at the University of Leeds. he magnetic field pushes eastwards on the inner core causing it to spin faster than the Earth
but it also pushes in the opposite direction in the liquid outer core which creates a westward motion. he solid iron inner core is about the size of the Moon.
It is surrounded by the liquid outer core an iron alloy whose convection-driven movement generates the geomagnetic field.
The fact that the Earth s internal magnetic field changes slowly over a timescale of decades means that the electromagnetic force responsible for pushing the inner and outer cores will itself change over time.
This may explain fluctuations in the predominantly eastwards rotation of the inner core a phenomenon reported for the last 50 years by Tkalä iä#et al. in a recent study published in Nature Geoscience.
Viewed within the conclusions of the new model this suggests that the inner core may have undergone a westwards rotation in such periods.
The authors used a model of the Earth s core that was run on the giant supercomputer Monte Rosa part of The swiss National Supercomputing Centre in Lugano Switzerland.
Using a new method they were able to simulate the Earth s core with an accuracy about 100 times better than other models.
#Ink-jet printing creates soft nanostructures A new way to make nanostructures combines advanced ink-jet printing technology with block copolymers that spontaneously form ultra-fine structures.
Recently developed ultra high-resolution ink jet printing techniques have some potential with demonstrated resolution down to 100-200 nanometers
Combining jet printing with self-assembling block copolymers enabled the engineers to attain the much higher resolution as suggested by lead author Serdar Onses a postdoctoral scientist at Illinois. Onses earned his doctorate at the University of Wisconsin
or spatially placed over a wafer. his invention to use ink-jet printing to deposit different block copolymer films with high spatial resolution over the substrate is highly enabling in terms of device design
or different templates in different regions. he advanced form of ink-jet printing the engineers use to locally deposit block copolymers is called electrohydrodynamic or e-jet printing.
It operates much like the ink jet-printers printers office workers use for printing on paper. he idea is flow of materials from small openings except e-jet is a special high-resolution version of ink jet-printers printers that can print features down
and other types of nanomaterials. he most interesting aspect of this work is the ability to combine top down techniques of jet printing with â##bottom upâ##processes of self-assembly in a way that opens up new capabilities
I look back at my career I will be most proud ofmuller says. t s the first time that anyone has been able to see the arrangement of atoms in a glass. hat s more two-dimensional glass could someday find a use in transistors by providing a defect-free ultra-thin material that could improve the performance of processors
in computers and smartphones. The National Science Foundation funded the work at Cornell. Source: Cornell Universityyou are free to share this article under the Creative Commons Attribution-Noderivs 3. 0 Unported license 3
The nanoscale building blocks display remarkable strength and resistance to failure despite being more than 85 percent air.
which suggests that the general fabrication technique the researchers developed could be used to produce lightweight mechanically robust small-scale components such as batteries interfaces catalysts
or motions to the user to guide a child s hand as they play computer games designed to help writing.
or the first time the stunning process of quantum teleportation has now been used in a circuit to relay information from one corner of the sample to the other. hat makes our work interesting is the system uses a circuit much like modern computer chips. n our system the quantum
They are commonly found across species of birds including those that lay blue eggs as well as non-blue eggs within a single population like the cuckoo and guillemot.#
Using mouse studies only about 100 genes with imprinted expression had been identified. To determine whether other genes exhibit imprinted expression Wang
Mouse experiments showed that if all DNA comes from the mother the embryo grows quite well
#Bubble lens bends nano beam of light PENN STATE (US) Using a few tiny liquid bubbles to bend light beams could open the doors for next-generation, high-speed circuits and displays, according to new research.
And building upon a conventional microscope, the new system costs only about $200 to implement. ne big advantage of this new approach is the hardware compatibility,
No other hardware modification is needed. The rest of the job is done by the computer. The new system acquires about 150 low-resolution images of a sample.
Each image corresponds to one LED element in the LED array. Therefore in the various images, light coming from known different directions illuminates the sample.
researchers have built a tool that improves touchscreen art. The fingers of thousands of people who created sketches of Brad pitt
and correct the drawing strokes of subsequent touchscreen users in an application created by researchers at Carnegie mellon University and Microsoft Research.
The app compensates for the at fingerproblem associated with touchscreens, automatically correcting a person drawing strokes
and writing on touchscreens and even provide deep insights into art and perception. The trick has been to create drawing databases large enough to leveragen obstacle that he
they found that they could cancel out the oisecaused by large fingers trying to draw on small screens.
Such findings, in turn, might help in developing better object recognition or scene analysis for computer vision systems.
and Michael Cohen, principal researcher in Microsoft Research Interactive Visual Media Group. The National Science Foundation, Google, Qualcomm, Adobe, Intel,
and the Okawa Foundation supported the research a
##Solar steam kills germs while off the grid RICE (US) A new sterilization system uses nanomaterials to convert 80 percent of the energy in sunlight into heat,
Huajian Gao professor of engineering tried to explain those results using powerful computer simulations but he ran into a problem.
and dodges screen freezes in mobile devices. It s the bane of streaming media#the endlessly spinning cursor on a dark screen or the final minutes of a favorite show freezing to a halt
when the wireless signal weakens. The new technology called streamloading could make spotty streaming and data-hogging downloads a thing of the past.
#Computer picks emotion based on brain scan CARNEGIE MELLON (US) For the first time, scientists have identified which emotion a person is experiencing based on brain activity.
because the impact of film clips diminishes with repeated display. The researchers solved the problem by recruiting actors from the School of Drama. ur big breakthrough was my colleague Karim Kassam idea of testing actors,
The computer model, constructed from using statistical information to analyze the fmri activation patterns gathered for 18 emotional words
The computer model achieved a rank accuracy of 0. 84. Rank accuracy refers to the percentile rank of the correct emotion in an ordered list of the computer model guesses;
random guessing would result in a rank accuracy of 0. 50. Next, the team took the machine learning analysis of the self-induced emotions to guess which emotion the subjects were experiencing
The computer model achieved a rank accuracy of 0. 91. With nine emotions to choose from,
when the computer model made use of activation patterns in only one of a number of different subsections of the human brain. his suggests that emotion signatures aren limited to specific brain regions,
but produce characteristic patterns throughout a number of brain regions, says Vladimir Cherkassky, senior research programmer in the psychology department.
#Computer models showed that refuges should be especially good for delaying resistance when inheritance of resistance in the pest is recessive#explains Carri##re.
Currently, scientists can grow sheets of graphene as large as a television screen by using chemical vapor deposition (CVD), in
One of the first applications of graphene may be as a conducting layer in flexible displays. ut CVD graphene is titchedtogether from many small crystalline grainsike a quiltt grain boundaries that contain defects
The aerial and underwater vehicles just six inches long and about the weight of an ipod Nano can be launched with commands from a laptop hundreds of miles from the eye of a hurricane.
and huge supercomputers shows how complicated the dynamo process really is#says Professor Fausto Cattaneo of the University of Chicago#s department of astronomy and astrophysics.
At the core of the device is a nanoscale structure#about a tenth of a millimeter wide
It does this without requiring fancy changes in manufacturing or a new way of writing software
(i e. both iphones and Android phones) thanks to the compatibility of the jacks themselves. So the achievement isn#t so much in the test itself as it is in the components used to run that test simply and efficiently.
#Autodesk is now selling an open-source 3d printer Autodesk first foray into hardware is here: The Ember 3d printer is now available for anyone to order.
At $5, 995, the printer isn exactly a steal. Autodesk more so built it to be the perfect exhibitor for its open-source Spark 3d printing software,
which is currently in beta. People married to Autodesk suite of software might find that pairing of interest,
but the greater 3d printing industry might buy Ember because Autodesk plans to release exactly how it is built
and operates. Makerbot, the best known desktop 3d printer brand, gave rise to an entire class of printers
because its first machines were similarly open source. Ember could do the same for a different desktop technology.
I had the chance to see Ember in action at Autodesk Pier 9 manufacturing space in San francisco. It a digital light processing machine,
which means it uses a projector similar to those found in those bulky classroom machines.
Light hits a shallow tank of liquid plastic and cures it one layer at a time, slowly building up an entire 3d object.
Unlike most desktop machines, which print layers of melted plastic that then hardens, DLP machines print upside down.
a necessary step in DLP printing. The Ember printer handles that last step in an unusual way.
The tank is shaped like a cashew; a half-instead of the square shape used by every other DLP printer.
After each layer is printed, the print platform raises slightly and the tank whips around the curve of the machine before returning to its home position.
Autodesk chose the unusual tank design because it requires the machine to use a lot less force, according to Autodesk 3d printing research scientist Andreas Bastian.
Each time the projector cures a layer, it creates a huge amount of suction between the 3d printed object and the bottom of the resin tank.
pending approval from the FCC. Autodesk has yet to release the actual open-source documentation for the machine,
but my personal run-in with the printer at Pier 9 was welcome confirmation that Ember really exists,
Lasers software and a joystick After spending several years interviewing scientists and holding public forums to debate ethics and air concerns,
Rather, it a highly advanced single-cell micro-surgery, replete with cutting-edge lasers and imaging software and, yes, even a joystick,
Chances are the weather data you use to determine the answer comes from the roughly 20 satellites orbiting Earth that monitor weather systems.
With more satellites, the experience will be more akin to pulling up Google maps on a mobile device.
But until conducting recent computer simulations, scientists lacked the ability to predict the performance of nanocrystalline materials in extreme environments.
Using three different computer simulation methods the researchers studied the interaction between defects and grain boundaries on time scales ranging from picoseconds to microseconds (one-trillionth of a second to one-millionth of a second).
The Body Steering driver's seat of the Humancar The vehicle custom CPU operates off trigger buttons on the center brake handle to engage functions such as regenerative power,
Other available features include a human/machine interface (HMI) touch-screen display with GPS and biometric data logging, ipod integrated sound systems,
A report on CNN showed four people rowing for a couple of minutes generated enough electricity to power a PC for well over an hour.
or even create better brain-computer interfaces. Today, the gold standard in MEG technology are superconducting quantum interference devices (SQUIDS.
Although it is only around the size of a USB memory stick, the device mimics the complex 3d features of the human intestine.
most of the work is supervising the system by means of a remote dashboard on a computer
The system also incorporates software that takes location-specific factors such as plant properties, soil characteristics and water rationing limits into account.
Epler's thesis project for NYU's Interactive Telecommunications Program, the Kinograph uses software to stabilize a series of captured images and extract optical sound.
and embedded Linux on a Raspberry Pi, while Opencv, Processing, and AEO Sound applications are used for image and audio processing, with batch processing of crop rotation and color correction all possible.
In the same way that the animals steer themselves by moving the funnel that the water comes out of the Fraunhofer system can also be steered using a motor to selectively point the balls in the desired direction (s). The whole apparatus can be fabricated in one step using a 3d printer.
which is comprised of individual microscopic tablets that interlock in a fashion similar to Lego blocks.
The researchers noticed that the boundaries between the tablets aren't straight but instead are wavy like the edges of jigsaw puzzle pieces.
"Using the hardware knowledge gleaned from their many years of snake robot construction, Choset and his team have created small, powerful,
"The architecture is built on Ethernet computer networking technology, "said Choset.""Ethernet doesn't require that the computers connected to it be of a specific type,
but that they all communicate with each other in the same way. The interfaces used in the modular architecture allow robot designers to focus on specific capabilities without having to worry about detailed systems issues
and software analysis that could have uses both On earth and in space. The ultimate goal is to produce zero emission proof-of-concept vehicles capable of self-navigation in difficult situations,
and they're going to be the headset's core audience at launch. But in the long run we believe the product has the potential to transcend gaming.
Let's take a look at eight future uses for the best virtual reality headset. The Oculus Rift could ultimately transform movies at least as much as it does gaming.
Imagine a future version of Facebook where instead of posting photos of your lunch on your wall you have a Second life-like avatar
This virtual world could give a whole new meaning to the moniker virtual town square. Speaking of Second life the past-its-prime virtual world is already trying to get a jump on this by integrating Oculus Rift DK2 support into its social sandbox.
If autonomous cars become mainstream that would free us up to focus on other things while in the car.
but imagine a future world where we each have telepresence robots that we control from home using virtual reality headsets.
We could pretend like virtual reality will only be used for PG family-friendly uses but who would we be kidding?
That slick, smartphone-sized portable looks like a design-forward mouse or set-top box but is actually a go-anywhere isometric exercise gizmo.
like the countless fitness monitors out there, TAO tasks its device with actually exercising you at home, work and on the go.
and supports for working what TAO identifies as the main male and female target areas arms, core, thighs and butt.
The display on the prototype was either out of battery power or a dummy so we didn't get to play with it.
and along with an LED lighting array features photovoltaic panels, a wind turbine, a battery pack, and an electronic control system that manages the flow of energy between those components.
#Scientists find that exposure to nanoparticles could impact cardiovascular health Due to its huge potential in applications ranging from cheaper vaccinations to energy-storing car panels there's plenty of excitement surrounding the emergence of nanotechnology.
The scientists from the Technion Rappaport Faculty of medicine Rambam Medical center and the Center of Excellence in Exposure Science and Environmental Health (TCEEH) worked with cultured laboratory mouse cells that resemble the cells of arterial walls
"The approximately 5, 680 total global patents break down into roughly 3, 350 fuel cell system software control patents, 1,
#Prototype system paves way for huge glasses-free 3d displays Using red/blue filters (anaglyph),
but we expect that new footage will be created especially for our displays perhaps with a much larger number of cameras,
According to the research team, compared to a movie screen, the display is also very vivid
and can be used easily outdoors, even in full sunlight. As a result, the new technology lends itself to applications such as 3d electronic billboards that could display different ads at the same time, dependent upon the angle of the viewer."
"Maybe someone wants to appeal specifically to the customers leaving the shop across the street,
the viewer must be positioned at a certain distance from the screen for the effect to work.
Scaling it up to a display with many pixels is not a problem.""From first design to working prototype took three years,
and laptops are fighting a losing battle when it comes to keeping these devices juiced up
#Voxel8 paves the way for 3d-printed electronics The 3d printers of today can produce objects that may be quite intricate in shape
This may be about to change thanks to the Voxel8 a printer presented at CES that makes it much easier to blend plastic conductive ink
Special conductive inks and the right kind of printers already make it possible to build simple parts with embedded electronics.
Thanks to its unique software (which was developed specifically by CAD software giant Autodesk and is hosted in the cloud) the printing can also pause at predetermined points
so that users can manually insert the components that will be embedded in their 3d-printed objects. As printers go this one appears to be on the higher end of the spectrum with features including a 4. 3-inch touchscreen USB
and Wi-fi connectivity and a kinematically coupled bed that uses magnets to ensure high-precision printing even after the various components are inserted manually.
The only two printing materials currently supported are standard PLA plastic and the silver conductive ink but the startup has said users will be able to upgrade their printer in the future as more functional
and matrix materials are released. Voxel8 printers are set to begin shipping late this year. The US$8999 standard price tag includes two PLA filament spools and five conductive ink cartridges.
Should you choose to pre-order which entails a $500 deposit you'll get double the printing materials.
The video below demonstrates what the printer can do? including printing a working quadcopter r
#BMW VW join forces to build fast-charging stations for electric cars in US German car companies, BMW and Volkswagen are teaming up with Chargepoint to install a network of fast-charging stations for electric cars in the U s. The companies plan to install nearly 100 Chargepoint ports on the U s. East
and West Coasts by the end of 2015 as part of an effort to promote greater sales of EVS such as the BMW i3 and the VW e-Golf.
#Roll to roll manufactured decorative solar panels to be 10 times cheaper Based on printing technologies, VTT Technical Centre of Finland has developed
Freedom of design increases the range of panel applications on the surfaces of interior and exterior building spaces.
VTT is also studying the feasibility of printing technology in the mass production of solar panels made from inorganic perovskite materials.
The panels can for example, be placed on windows and walls and on machines, devices and advertisement billboards.
Until now, it has only been possible to pattern OPV panels into a form of stripes.
and screen printing technologies is only around 0. 2 mm thick, and includes the electrodes
VTT is also currently examining how well the roll-to-roll printing methods are suited to the manufacturing of inorganic solar panels made from perovskite materials.
The research scientists have tested the feasibility of the method by printing leaf-shaped photovoltaic cells. Active surface of a one leaf is 0 0144 m2
The solar panels are manufactured with printing machines based on conventional printing methods using the roll-to-roll method,
and after use, the OPV panels can be recycled. The market for organic photovoltaic cells is developing,
The operating life of panel is few years which is enough for many applications. VTT is also developing a method to utilize light in wireless data transfer by using solar cells as data receivers.
#Abusive Spouses are Using Spyware to Track their Victims The use of surveillance software by abusive spouses to monitor the phones
and computers of their partners secretly has reached pidemic proportionsand police are ill-equipped to tackle it,
The proliferation of software packages, many of which are marketed openly as tools for covertly tracking a heating wife
computers and toys pre-loaded with spyware to infiltrate a target home. Polly Neate, chief executive of Women Aid, told The Independent:
and increase their control. e increasingly hear stories of abusers adding tracking software to phones,
placing spyware on personal computers and using the internet to gather information about their partner. Many software packages are marketed openly as tools for covertly tracking a heating wife
or girlfriendand cost less than £50 Many software packages are marketed openly as tools for covertly tracking a heating wife
or girlfriendand cost less than £50 (Rex) owever, in many cases the police are trained not to recognise
which once installed on a computer or smartphone is virtually untraceable to the user. Nearly all offer a GPS tracking function,
The software is being used routinely to exert psychological pressure or for harassment, allowing controlling or potentially violent men to confront their victims over their movements.
The company has been marketing a ell phone spy softwaredevice sold for £99. 99 with the ability o monitor SMS text messages,
states that the user of the targeted mobile device will not see the application running. The product listing featured a question from a customer stating she wanted to use the software to spy on her partner texts.
Maplin reply stated: nstalling on the phone is very fast and simple, you will be able to read all texts sent
Delaware, 66 percent of jobs were located in the core city in 1940. By 1970, its share had fallen below one in four.
Over a period of 25 years, between 1955 and 1980, more than 50 corporations left New york city, including IBM, Gulf Oil, Texaco, Union carbide, General Telephone, Xerox, Pepsico and U s. Tobacco.
But in large, the boom in core city employment hasn materialized. The result of this mismatch between urban living
is a design element in everything from Android phones to car steering wheels. Because the technology is currently relatively primitive in the mass market,
it mainly used for more day-to-day purposes like simulating the feel of a tactile keyboard on a smartphone
or simulating the shaking of an explosion in a specialized video game controller. Check out Youtube Video Article by Neal Ungerleider Article Source:
Besides the aging simulation exercise, they viewed a Powerpoint presentation defining dementia and were trained, in the hall Dementia Experience Center, to perform hand massage in nursing homes. hat did
he would rather flip open his laptop in his room to watch the lecture, streamed live over the campus network.
But it also raises questions that go to the core of a college mission: Is it possible to learn as much
and watch through a computer. Across the country, online education is exploding: 4. 6 million students took a college-level online course during fall 2008, up 17 percent from a year earlier, according to the Sloan Survey of Online learning.
and students join a virtual classroom once a week using a conferencing software called Wiziq. i, everyone, welcome to Week 9. Hello!
her laptop open on the dining room table. As Dr. Joos lectured, a chat box scrolled with studentscomments and questions.
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