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New quantum gate seen as an essential logic element for future quantum computers

New quantum gate seen as an essential logic element for future quantum computers | The Cozmik Gazette | Scoop.it

Physicists from the Max Planck Institute of Quantum Optics in Garching have developed a novel quantum gate, an essential component of quantum computers. A future quantum computer would be able to handle certain types of tasks far faster than any classical computer. As a central element of their quantum gate, the Max Planck physicists are using an atom trapped between two mirrors of a resonator. By reflecting the photon off the resonator with the atom, they are able to switch the state of the photon. Moreover, the gate operation can entangle the atom with the photon. When quantum particles are entangled, their properties become interdependent. Entanglement opens up whole new horizons in information processing. The quantum gate recently presented by the Garching-based physicists makes it possible to design quantum networks in which information is transferred between remote quantum processors in the form of photons.


The purpose of the experiments is to explore ways to process data in the form of quantum bits, or qubits for short. Whereas classical bits only exist in the states of “0” or “1”, in qubits superpositions of these two states are possible. When several qubits are combined into a single unit – a phenomenon known as entanglement – it is possible to perform parallel calculations that would simply be inconceivable with conventional computers. “A quantum gate such as the one we have developed is an essential component in the construction of a quantum computer,” says Stephan Ritter, who heads the experiment.


A CNOT gate couples a control bit with a target bit: whether or not the control bit changes the state of the target bit depends on its state. All logic circuits required for quantum calculations can be realized with this logic element and a few other simple operations. Many such logic elements are needed to build a quantum computer. A quantum computer could, within a reasonable period of time perform intricate searches in databases that would take even the fastest computer today months to complete. In addition, a quantum computer could break the encryption commonly used today. To prevent eavesdroppers from gaining access to transmitted data, quantum information technology has a tried-and-tested trick up its sleeve: quantum cryptography, which stops spies from tapping information from a data line undetected.


Via Dr. Stefan Gruenwald
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The continuing 'good luck' of singer/songwriter J.D. McPherson

The continuing 'good luck' of singer/songwriter J.D. McPherson | The Cozmik Gazette | Scoop.it
By Patrick Donohu, Featured Writer, Low Country Current It's safe to say singer/songwriter J.D. McPherson never expected to be nominated for awards alongside well-known bands such as The Lumineers ...

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Wishing Casandra Was Our Mom With Nick Curran's "Crazy About You Baby"

Wishing Casandra Was Our Mom With Nick Curran's "Crazy About You Baby" | The Cozmik Gazette | Scoop.it
by Sad Man's Tongue We noticed some wonderful photos from one of our fans of her and her baby, and baby, we wanted more. So Casandra Beebe was gracious enough to share the wonderful shots of her an...

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A little Nick Curran to get your blood pumping!

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'Zombie Cells?' ... and so it begins. Time to stock up on shotgun shells and bottled water.

'Zombie Cells?' ... and so it begins. Time to stock up on shotgun shells and bottled water. | The Cozmik Gazette | Scoop.it
'Zombie' Cells Created In New Mexico Lab Said To Outperform Living Ones In ...

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6 Things that make Pete Witham think his paranoia is completely justified.

6 Things that make Pete Witham think his paranoia is completely justified. | The Cozmik Gazette | Scoop.it

Ancient cultures have left many relics and structures that have us guessing why, what and how. The fact that we can't explain them makes Pete justify his belief in a vast conspiracy involving extraterrestrial intelligence and great intelligent creatures that live in the earth and deep within the Ocean.

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A Tribute To the Late Rockabilly Legend Nick Curran – Photos by Libero Api

A Tribute To the Late Rockabilly Legend  Nick Curran – Photos by Libero Api | The Cozmik Gazette | Scoop.it

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Sad Mans Tongue's comment, November 28, 2012 5:03 AM
Thanks mate
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Security firm to hold zombie crisis scenario

Security firm to hold zombie crisis scenario | The Cozmik Gazette | Scoop.it
SAN DIEGO — Forget the H1N1 pandemic. Could a future crisis arise from an outbreak of viruses that destroy brain cells and render people violently catatonic, like zombies?

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Pete Witham & The Cozmik Zombies EPK

Pete Witham & The Cozmik Zombies EPK | The Cozmik Gazette | Scoop.it

Here's a little EPK that we set up on Music XRay website with songs from Full Tilt!

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Tuning a piano also tunes the brain

Tuning a piano also tunes the brain | The Cozmik Gazette | Scoop.it

Researchers at University College London and Newcastle University found listening to two notes played simultaneously makes the brain adapt. Brain scans revealed highly specific changes in the hippocampus, which governs memory and navigation.

These correlated with the number of years tuners had been doing this job. The Wellcome Trust researchers used magnetic resonance imaging to compare the brains of 19 professional piano tuners - who play two notes simultaneously to make them pitch-perfect - and 19 other people. What they saw was highly specific changes in both the grey matter - the nerve cells where information processing takes place - and the white matter - the nerve connections - within the brains of the piano tuners.


Via Dr. Stefan Gruenwald
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Pete Witham & The Cozmik Zombies Email Sign Up

Pete Witham & The Cozmik Zombies Email Sign Up | The Cozmik Gazette | Scoop.it

Enter your email and get a free MP3 from Pete & The Cozmik Zombies


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Shapeways: 3D printing for the masses

Shapeways: 3D printing for the masses | The Cozmik Gazette | Scoop.it

Shapeways is a Philips spin-off company focused on bringing 3D rapid manufacturing technologies to main-stream consumers. Although they don’t sell any actual lighting fixtures, Shapeways offers an intriguing glimpse into the future of the lighting industry.

 

Shapeways website is designed to enable non-3D-cad-savvy people to share in the possibilities of the technology. Shapeways has developed a series of “Creators“, small applets that allow people to design and order their own customized 3D printed objects, by simply adjusting the parameters or entering information, such as a string of text in the votive candle holder they call the “Light Poem.”

 

Shapeways has also created a forum where designers can easily post their designs for sale, along with simple web-based technology to allow people to view and manipulate 3D content right on the website — without having to learn some complex and expensive 3D modeling software.


Via Dr. Stefan Gruenwald
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How to build a Dyson sphere within the next 50 years

How to build a Dyson sphere within the next 50 years | The Cozmik Gazette | Scoop.it

We are closer to being able to build a Dyson Sphere than we think. By enveloping the sun in a massive sphere of artificial habitats and solar panels, a Dyson Sphere would provide us with more energy than we would ever know what to do with while dramatically increasing our living space. Implausible you say? Something for our distant descendants to consider? Think again. We could conceivably get going on the project in about 25 to 50 years, with completion of the first phase requiring only a few decades.

 

The Dyson sphere, also referred to as a Dyson shell, is the brainchild of the physicist and astronomer Freeman Dyson. In 1959 he put out a two page paper titled, "Search for Artificial Stellar Sources of Infrared Radiation" in which he described a way for an advanced civilization to utilize all of the energy radiated by their sun. This hypothetical megastructure, as envisaged by Dyson, would be the size of a planetary orbit and consist of a shell of solar collectors (or habitats) around the star. With this model, all (or at least a significant amount) of the energy would hit a receiving surface where it can be used. He speculated that such structures would be the logical consequence of the long-term survival and escalating energy needs of a technological civilization.

 

According to Anders Sandberg, an expert on exploratory engineering, a Dyson sphere in our solar system with a radius of one AU would have a surface area of at least 2.72x10^17 km2, which is around 600 million times the surface area of the Earth. The sun has an energy output of around 4x10^26 W, of which most would be available to do useful work.

 

Dyson's original proposal simply assumed there would be enough solar collectors around the sun to absorb the starlight, not that they would form a continuous shell. Rather, the shell would consist of independently orbiting structures, around a million kilometres thick and containing more than 1x10^5 objects. Consequently, a "Dyson sphere" could consist of solar captors in any number of possible configurations. In a Dyson swarm model, there would be a myriad of solar panels situated in various orbits. It's generally agreed that this would be the best approach. Another plausible idea is that of the Dyson bubble in which solar sails, as well as solar panels, would be put into place and balanced by gravity and the solar wind pushing against it.

 

Like other speculative projects, like the space elevator or terraforming Mars, we should seriously consider putting this alongside our other near-term plans for space exploration and work. And given the progressively worsening condition of Earth and our ever-growing demand for living space and resources, we may have no other choice.


Via Dr. Stefan Gruenwald
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Pete Witham & The Cozmik Zombies New Online Store!

Pete Witham & The Cozmik Zombies New Online Store! | The Cozmik Gazette | Scoop.it
So far we've got T-shirts, stickers, and buttons! Support the band and show your zombie pride by purchasing one of our Party Like A Carny Buttons, or Cozmik Zombie T-shirts!!!   -click here to...
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Robins can literally see magnetic fields, but only if their vision is sharp

Robins can literally see magnetic fields, but only if their vision is sharp | The Cozmik Gazette | Scoop.it

Some birds can sense the Earth’s magnetic field and orientate themselves with the ease of a compass needle. This ability is a massive boon for migrating birds, keeping frequent flyers on the straight and narrow. But this incredible sense is closely tied to a more mundane one – vision. Thanks to special molecules in their retinas, birds like the European robins can literally see magnetic fields. The fields appear as patterns of light and shade, or even colour, superimposed onto what they normally see.

 

Katrin Stapput from Goethe University has shown that this ‘magnetoreception’ ability depends on a clear image from the right eye. If the eye is covered by a translucent frosted goggle, the birds become disorientated; if the left eye is covered, they can navigate just fine. So the robin’s vision acts as a gate for its magnetic sense. Darkness (or even murkiness) keeps the gate shut, but light opens it, allowing the internal compass to work.

 

The magnetic sense of birds was first discovered in robins in 1968, and its details have been teased out ever since. Years of careful research have told us that the ability depends on light and particularly on the right eye and the left half of the brain. The details still aren’t quite clear but, for now, the most likely explanation involves a molecule called cryptochrome. Cryptochrome is found in the light-sensitive cells of a bird’s retina and scientists think that it affects just how sensitive those cells are.

 

When cryptochrome is struck by blue light, it shifts into an active state where it has an unpaired electron – these particles normally waltz in pairs but here, they dance solo. The same thing happens in a companion molecule called FAD. Together, cryptochrome and FAD, both with unpaired electrons, are known as a “radical pair”. Magnetic fields act upon the unpaired electrons and govern how long it takes for the radical pair to revert back to their normal, inactive state. And because cryptochrome affects the sensitivity of a bird’s retina, so do magnetic fields.

 

The upshot is that magnetic fields put up a filter of light or dark patches over what a bird normally sees. These patches change as the bird turns and tilts its head, providing it with a visual compass made out of contrasting shades.

 

To test the bounds of this ability, Stapput wanted to see what would happen if she blurred a robin’s vision. She outfitted her robins with somewhat unflattering goggles, with clear foil on one side and frosted foil on the other. Both allowed 70% of light to get through, but the frosted foil disrupted the clarity of the image.

 

The robins were kept in cages until they were ready to migrate and let loose in funnel-shaped cages lined with correction fluid. As they orientated themselves and changed course, they created scratches on the cage walls which told Stapput which direction they were heading in. These scratches revealed that with both eyes open, the robins flew straight north as they would normally do in the wild. If their left field of vision was frosted, they went the same way. But if their right eye was covered, they became disorientated, heading in completely random directions.

 

This experiment shows that the internal compass doesn’t just depend on light – birds also need to see a clear image with their right eye in order to find they way. After all, their magnetic sense only provides them with information that lies on top of the images they normally see. If that image is blurry, the magnetic sense is useless. To put it another way, driving with an excellent Satnav won’t do you much good if your windscreen is covered in frost.


Via Dr. Stefan Gruenwald
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Ronnie and friends show us how to rock

This is a great lesson of how to play rockabilly and how to rock in general. Witness the bones of the beast in motion. This is what goes on under the hood.

 

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Like Humans, Dolphins Call Each Other By Name

Like Humans, Dolphins Call Each Other By Name | The Cozmik Gazette | Scoop.it
Bottlenose dolphins use signature whistles when they're separated.

 

Bottlenose dolphins call out the specific names of loved ones when they become separated, a study finds. Other than humans, the dolphins are the only animals known to do this, according to the study, published in the latest Proceedings of the Royal Society B. The big difference with bottlenose dolphins is that these communications consist of whistles, not words.

 

Earlier research found that bottlenose dolphins name themselves, with dolphins having a “signature whistle” that encodes other information. It would be somewhat like a human shouting, “Hey everybody! I’m an adult healthy male named George, and I mean you no harm!”

 

“Animals produced copies when they were separated from a close associate and this supports our belief that dolphins copy another animal’s signature whistle when they want to reunite with that specific individual,” lead author Stephanie King of the University of St. Andrews Sea Mammal Research Unit told Discovery News.

 

Captive bottlenose dolphins, however, as well as all of the wild ones, developed their own signature whistles that serve as names in interactions with other dolphins. “A dolphin emits its signature whistle to broadcast its identity and announce its presence, allowing animals to identify one another over large distances and for animals to recognize one another and to join up with each other,” King explained. “Dolphin whistles can be detected up to 20 km away (12.4 miles) depending on water depth and whistle frequency.”


Via Dr. Stefan Gruenwald
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Peter Phillips's curator insight, February 21, 2013 4:12 AM

Dolphins call each other by name!

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Turns out that music really is intoxicating, after all

Turns out that music really is intoxicating, after all | The Cozmik Gazette | Scoop.it

Our reaction to the music that we love stimulates the flow of dopamine into … (http://t.co/RPTQl3Ha Altro articolo interessante su cosa accade al nostro cervello quando ascoltiamo la musica.)...


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Research: Music streaming helping, not hurting, downloads

Research: Music streaming helping, not hurting, downloads | The Cozmik Gazette | Scoop.it
Music downloads continue to grow despite the emergence of new streaming services, according to research which says that Spotify users are twice as likely to buy songs they play.

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Demystifying the Higgs Boson with Leonard Susskind

Professor Susskind presents an explanation of what the Higgs mechanism is, and what it means to "give mass to particles." He also explains what's at stake for the future of physics and cosmology.


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Some Photographs of That Day

Some Photographs of That Day | The Cozmik Gazette | Scoop.it

This guy took a photo a day from 1979 to 1997 (the day before he died) There were a few missing (the ones that are just photos of a piece of paper with a date on it... but it's a pretty messed up thing to think about! That's a pretty heavy art project.

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20,000+ FREE Online Science and Technology Lectures from Top Universities

20,000+ FREE Online Science and Technology Lectures from Top Universities | The Cozmik Gazette | Scoop.it

The following topics are covered:

 

Aerospace, Anthropology, Astrobiology, Astronomy, Astrophysics, Biochemistry, Bioengineering, Biology, Biotechnology, Chemistry, Civil Engineering, Cognitive Science, Computers, Cosmology, Dentistry, Electrical Engineering, Engineering, Environment, Future, General Science, Geoscience, Machine Learning, Material Science, Mathematics, Mechanical Engineering, Medicine, Metallurgy, Mining, Nanotechnology, Oceanography, Philosophy, Physics, Physiology, Robotics, and Sociology.

 

Lectures are in Playlists and are alphabetically sorted with thumbnail pictures. No fee, no registration required - learn at your own pace. Certificates can be arranged with presenting universities.

 

NOTE: To subscribe to the RSS feed of Amazing Science, copy http://www.scoop.it/t/amazing-science/rss.xml into the URL field of your browser and click "subscribe".


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Siegfried Holle's curator insight, July 4, 2014 8:45 AM

Your knowledge is your strength and power 

Saberes Sin Fronteras Ong's curator insight, November 30, 2014 5:33 PM

Acceso gratuito a documentos de las mejores universidades del mundo

♥ princess leia ♥'s curator insight, December 28, 2014 11:58 AM

WoW  .. Expand  your mind!! It has room to grow!!! 

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New hope for people with broken spines: Stem cells bring back feeling for paralysed patients

New hope for people with broken spines: Stem cells bring back feeling for paralysed patients | The Cozmik Gazette | Scoop.it

For the first time, people with broken spines have recovered feeling in previously paralysed areas after receiving injections of neural stem cells. Three people with paralysis received injections of 20 million neural stem cells directly into the injured region of their spinal cord. The cells, acquired from donated fetal brain tissue, were injected between four and eight months after the injuries happened. The patients also received a temporary course of immunosuppressive drugs to limit rejection of the cells. None of the three felt any sensation below their nipples before the treatment. Six months after therapy, two of them had sensations of touch and heat below their belly button. The third patient has not seen any change. The patients are the first three of 12 who will eventually receive the therapy. The remaining recipients will have less extensive paralysis.


Via Dr. Stefan Gruenwald
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