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Archive for the ‘computing’ category

Feb 18, 2019

Diversity on land is not higher today than in the past, study shows

Posted by in categories: computing, existential risks

The rich levels of biodiversity on land seen across the globe today are not a recent phenomenon: diversity on land has been similar for at least the last 60 million years, since soon after the extinction of the dinosaurs.

According to a new study led by researchers at the University of Birmingham and involving an international team of collaborators, the number of species within ecological communities on land has increased only sporadically through geological time, with rapid increases in being followed by plateaus lasting tens of millions of years.

Previously, many scientists have argued that diversity increased steadily through , which would mean that biodiversity today is much greater than it was tens of millions of years ago. But building an accurate picture of how land diversity was assembled is challenging because the fossil record generally becomes less complete further back in time. By using modern computing techniques, capable of analysing hundreds of thousands of fossils, patterns are starting to emerge that challenge this view.

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Feb 18, 2019

Glyph intros Thunderbolt 3 Dock with NVMe SSD support, SD card slot

Posted by in categories: computing, electronics

Glyph has launched a self-named Thunderbolt 3 Dock, its key selling point being compatibility with NVMe SSDs for fast data storage and transfer.

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Feb 18, 2019

Why Twisted Light Holds the Key to Radically Faster Internet

Posted by in categories: computing, engineering, internet

With this new nanophotonic device, scientists might have just unlocked how to harness the data transfer potential of “twisted light”.

How Ferroelectricity Could Change the Way We Store Data- https://youtu.be/watch?v=IwT_ECJ1TEY

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Feb 18, 2019

In France, the Force is strong with lightsaber dueling

Posted by in categories: computing, weapons

BEAUMONT-SUR-OISE, France (AP) — Master Yoda, dust off his French, he must.

It’s now easier than ever in France to act out “Star Wars” fantasies, because its fencing federation has borrowed from a galaxy far, far away and officially recognized lightsaber dueling as a competitive sport, granting the iconic weapon from George Lucas’ saga the same status as the foil, epee and sabre, the traditional blades used at the Olympics.

Of course, the LED-lit, rigid polycarbonate lightsaber replicas can’t slice a Sith lord in half. But they look and, with the more expensive sabers equipped with a chip in their hilt that emits a throaty electric rumble, even sound remarkably like the silver screen blades that Yoda and other characters wield in the blockbuster movies.

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Feb 16, 2019

The Future of Brain-Computer Interfaces and the Human Machine

Posted by in categories: computing, neuroscience

The melding of humanity with the technology we have created has begun…

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Feb 15, 2019

Everything will change with the advent of the laptop quantum computer (QC)

Posted by in categories: computing, information science, neuroscience, quantum physics

The transition from PCs to QCs will not merely continue the doubling of computing power, in accord with Moore’s Law. It will induce a paradigm shift, both in the power of computing (at least for certain problems) and in the conceptual frameworks we use to understand computation, intelligence, neuroscience, social interactions, and sensory perception.

Today’s PCs depend, of course, on quantum mechanics for their proper operation. But their computations do not exploit two computational resources unique to quantum theory: superposition and entanglement. To call them computational resources is already a major conceptual shift. Until recently, superposition and entanglement have been regarded primarily as mathematically well-defined by psychologically incomprehensible oddities of the quantum world—fodder for interminable and apparently unfruitful philosophical debate. But they turn out to be more than idle curiosities. They are bona fide computational resources that can solve certain problems that are intractable with classical computers. The best known example is Peter Shor’s quantum algorithm which can, in principle, break encryptions that are impenetrable to classical algorithms.

The issue is the “in principle” part. Quantum theory is well established and quantum computation, although a relatively young discipline, has an impressive array of algorithms that can in principle run circles around classical algorithms on several important problems. But what about in practice? Not yet, and not by a long shot. There are formidable materials-science problems that must be solved—such as instantiating quantum bits (qubits) and quantum gates, and avoiding an unwanted noise called decoherence—before the promise of quantum computation can be fulfilled by tangible quantum computers. Many experts bet the problems can’t adequately be solved. I think this bet is premature. We will have laptop QCs, and they will transform our world.

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Feb 15, 2019

‘Reverse trick’ for LEDs could keep future computers cool

Posted by in categories: computing, futurism

Running LEDs with electrodes in reverse can cool nearby devices, which could come in handy for smaller, faster computers.

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Feb 14, 2019

Nonmechanical on-chip waveguide device steers mid-infrared beams

Posted by in category: computing

Mechanical devices for steering optical beams such as gimbal-mounted mirrors or rotating Risley prisms are subject to fatigue and mechanical breakdown, and also suffer from large size, weight, and power (SWaP) requirements. To avoid these drawbacks, researchers from the Naval Research Laboratory (NRL; Washington, DC) have devised a voltage-controlled, nonmechanicalbeam steering device that routes mid-wavelength infrared (MWIR or mid-IR) beams in two dimensions.1 This solid-state, mid-IR optical component relies on liquid-crystal-clad optical waveguides.


A solid-state, compact on-chip device that incorporates waveguides and liquid-crystal elements can steer mid-infrared light beams without relying on mechanical components.

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Feb 13, 2019

Running an LED in reverse could cool future computers

Posted by in categories: computing, engineering, physics

In a finding that runs counter to a common assumption in physics, researchers at the University of Michigan ran a light emitting diode (LED) with electrodes reversed in order to cool another device mere nanometers away.

The approach could lead to new solid-state technology for future microprocessors, which will have so many transistors packed into a small space that current methods can’t remove heat quickly enough.

“We have demonstrated a second method for using photons to cool devices,” said Pramod Reddy, who co-led the work with Edgar Meyhofer, both professors of mechanical engineering.

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Feb 13, 2019

The atomic dynamics of rare everlasting electric fields

Posted by in categories: computing, particle physics

By ricocheting neutrons off the atoms of yttrium manganite (YMnO3) heated to 3,000 degrees Fahrenheit, researchers have discovered the atomic mechanisms that give the unusual material its rare electromagnetic properties. The discovery could help scientists develop new materials with similar properties for novel computing devices and micro-actuators.

The experiment was conducted as a collaboration between Duke University and Oak Ridge National Laboratory (ORNL) and appeared online in Nature Communications on January 2, 2018.

Ferromagnetism is the scientific term for the phenomenon responsible for permanent magnets like iron. Such exist because their molecular structure consists of tiny magnetic patches that all point in the same direction. Each patch, or domain, is said to have a , with a north and a south pole, which, added together, produce the magnetic fields so often seen at work on refrigerator doors.

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