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Archive for the ‘computing’ category: Page 592

Mar 10, 2017

This super-fast 3D printer is powered by holograms

Posted by in categories: 3D printing, computing, holograms

The advantage of Daqri’s chip, the company says, is that it can create holograms without the need for complex optics. On a silicon wafer, a tiny grid of tunable crystals is used to control the magnitude and time delay, or phase, of reflected light shined at the surface of the chip from a laser. Software adjusts the crystals to create patterns of interference in the light, resulting in a three-dimensional light field.

In experiments, the team has used the chip to create solid objects by projecting holograms into containers of various light-activated monomers. It can currently make small objects, such as a paper clip, in about five seconds—a process that could take a normal 3D printer several minutes.


A startup called Daqri has technology that can print solid objects faster and also powers a new kind of head-up display.

Continue reading “This super-fast 3D printer is powered by holograms” »

Mar 7, 2017

IBM Is Rolling Out the World’s First Universal ‘Quantum Computing’ Service

Posted by in categories: computing, internet, quantum physics

IBM esta anunciando que estão desenvolvendo um sistema universal de “computação qu ntica”

O serviço será chamado IBM Q, e ele dará às pessoas acesso ao seu computador qu ntico de estágio inicial pela internet para usar como desejar — por uma taxa.

O grande elefante na sala é que, por enquanto, o computador qu ntico da IBM só funciona com cinco qubits, então não é muito mais rápido (se houver mais rápido) do que um computador convencional.

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Mar 6, 2017

First hint of how DNA calculators could supercharge computing

Posted by in categories: biotech/medical, computing, quantum physics

By Matt Reynolds

By making DNA endlessly change, researchers have shown how a biological computer might one day solve problems much faster than conventional computers or even quantum computers. It’s still a long way from being functional though.

The DNA-based system is an experiment in how it may be possible to make a theoretical type of computer known as a non-deterministic universal Turing machine.

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Mar 6, 2017

Hard drives of the future could be made of DNA

Posted by in categories: biotech/medical, computing, internet, mathematics

Our data-driven society is churning out more information than traditional storage technology can handle, so scientists are looking for a solution in Nature’s hard drive: DNA. A pair of researchers at Columbia University and the New York Genome Center recently wrote a full computer operating system, an 1895 French film, an Amazon gift card and other files into DNA strands and retrieved them without errors, according to a study published in the latest edition of Science.

There are several advantages to using DNA. It’s a lot smaller than traditional media; a single gram can fit 215,000 times more data than a one terabyte hard drive, The Atlantic notes. It’s also incredibly durable. Scientists are using DNA thousands of years old to de-extinct wooly mammoths, for example. But, until now, they’ve only unlocked a fraction of its storage capacity. Study coauthors Yaniv Erlich and Dina Zielinski were able to fit the theoretical maximum amount of information per nucleotide using a new method inspired by how movies stream across the internet.

“We mapped the bits of the files to DNA nucleotides. Then, we synthesized these nucleotides and stored the molecules in a test-tube,” Erlich explained in an interview with ResearchGate. “To retrieve the information, we sequenced the molecules. This is the basic process. To pack the information, we devised a strategy—called DNA Fountain—that uses mathematical concepts from coding theory. It was this strategy that allowed us to achieve optimal packing, which was the most challenging aspect of the study.”

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Mar 6, 2017

IBM to build quantum computers, selling machines millions of times faster than anything made before

Posted by in categories: computing, quantum physics

IBM has taken its first step towards selling computers that are millions of times faster than the one you’re reading this on.

The company has set up a new division, IBM Q, that is intended to make quantum computers and sell them commercially.

Until now, quantum computers have mostly been a much hyped but long away dream. But IBM believes they are close enough to reality to start work on getting software ready for when they become commercially available.

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Mar 5, 2017

Are We Ready for Cyborgs? The Tech Is on Its Way

Posted by in categories: computing, cyborgs

Are we ready for cyborgs? More specifically, people with implants that enhance beyond the superficially cosmetic and into the realms of evolved beings?

Jorge Pelegrín-Borondo (Universidad de La Rioja), Eva Reinares-Lara (Universidad Rey Juan Carlos) and Cristina Olarte-Pascual (Universidad de La Rioja), in cooperation with Professor Kiyoshi Murata, from Meiji University in Tokyo, believe society is ready for this melding of (hu)man and machine.

The Spanish academics’ report “Assessing the acceptance of technological implants (the cyborg): Evidences and challenges” has just been released in the scientific journal Computers in Human Behavior. The report shows a significant proportion of those surveyed are comfortable with the coming cyborg modifications. The group are also collaborating with other academics across the world, including Professor Kiyoshi Murata, for a comparative cross-cultural study roundtable at the 2017 ETHICOMP conference this summer in Turin, Italy.

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Mar 5, 2017

Scientists prove they can store 215 petabytes in a single gram of DNA, retrieve it error free

Posted by in categories: biotech/medical, computing

DNA storage is the wave of the future as scientists have proven they can store incredible amounts of data in just a few grams of nucleic acid, and retrieve the data countless times, error-free.

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Mar 3, 2017

Researchers demonstrate new type of laser

Posted by in categories: biotech/medical, computing, quantum physics

Lasers are everywhere nowadays: Doctors use them to correct eyesight, cashiers to scan your groceries, and quantum scientist to control qubits in the future quantum computer. For most applications, the current bulky, energy-inefficient lasers are fine, but quantum scientist work at extremely low temperatures and on very small scales. For over 40 years, they have been searching for efficient and precise microwave lasers that will not disturb the very cold environment in which quantum technology works.

A team of researchers led by Leo Kouwenhoven at TU Delft has demonstrated an on-chip laser based on a fundamental property of superconductivity, the ac Josephson effect. They embedded a small section of an interrupted superconductor, a Josephson junction, in a carefully engineered on-chip cavity. Such a device opens the door to many applications in which microwave radiation with minimal dissipation is key, for example in controlling qubits in a scalable computer.

The scientists have published their work in Science on the 3rd of March.

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Mar 1, 2017

Mathematician breaks down how to defend against quantum computing attacks

Posted by in categories: computing, encryption, internet, mathematics, quantum physics

The encryption codes that safeguard internet data today won’t be secure forever.

Future quantum computers may have the and algorithms to crack them.

Nathan Hamlin, instructor and director of the WSU Math Learning Center, is helping to prepare for this eventuality.

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Feb 28, 2017

Researchers Have Directly Tested Two Quantum Computing Technologies

Posted by in categories: computing, particle physics, quantum physics

If you aren’t already, you’re likely soon to find yourself looking forward to the day when quantum computers will replace regular computers for every day use. The computing power of quantum computers is immense compared to what regular desktops or laptops can do. The downside is, current quantum computing technology are limited by the bulky frameworks and extreme conditions they require in order to function.

Quantum computers need specialized setups in order to sustain and keep quantum bits — the heart of quantum computing — working. These “qubits” are particles in a quantum state of superposition, which allows them to encode and transmit information as 0s and 1s simultaneously. Most computers run on binary bit systems which use either 0s or 1s. Since quantum computers can use both at the same time, they can process more information faster. That being said, Sustaining the life of qubits is particularly difficult, but researchers are investigating quantum computing studies are trying to find ways to prolong the life of qubits using various techniques.

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