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Archive for the ‘computing’ category: Page 521

Nov 4, 2020

Mars plays shepherd to our moon’s long-lost twin, scientists find

Posted by in categories: computing, space

An international team of planetary scientists led by astronomers at AOP have found an asteroid trailing behind Mars with a composition very similar to the moon’s. The asteroid could be an ancient piece of debris, dating back to the gigantic impacts that formed the moon and the other rocky planets in our solar system like Mars and the Earth. The research, which was published in the journal Icarus, also has implications for finding such primordial objects associated with our own planet.

Trojans are a class of asteroid that follows the in their orbits as a flock of sheep might follow a shepherd, trapped within gravitational “safe havens” 60 degrees in front of, and behind, the planet (Figure 1). They are of great interest to scientists as they represent leftover material from the formation and early evolution of the solar system. Several thousands of those Trojans exist along the orbit of the giant planet Jupiter. Closer to the Sun, astronomers have so far discovered only a handful of Trojans of Mars, the planet next door to Earth.

A team including scientists from Italy, Bulgaria and the US and led by the Armagh Observatory and Planetarium (AOP) in Northern Ireland has been studying the Trojans of Mars to understand what they tell us about the early history of the inner worlds of our solar system—the so-called terrestrial planets—but also to inform searches for Trojans of the Earth. Ironically, it is much easier to find Trojans of Mars than for our own planet because these Earth Trojans, if they exist, sit always close to the Sun in the sky where it is difficult to point a telescope. An Earth Trojan, named 2010 TK7, was found a decade ago by NASA’s WISE space telescope, but computer modeling showed it is a temporary visitor from the belt of asteroids between Mars and Jupiter rather than a relic planetesimal from the Earth’s formation.

Nov 1, 2020

Tweeting with your MIND? Meet Stentrode: The Neuralink Rival ALREADY in Clinical Trials

Posted by in categories: biotech/medical, computing, neuroscience

https://www.youtube.com/watch?v=RJQcvGALwZY&feature=youtu.be

A closer look at Stentrode, the Brain Computer Interface that interacts with the brain via blood vessels. Recent paper demonstrating it working in 2 ALS patients.


Han from WrySci HX goes through the very interesting brain computer interface called Stentrode that can let you tweet with your mind. As a BCI, it’s a rival to Neuralink, Kernal, and Openwater. Find out about its background, how it works, why it’s the most unique BCI, and some results from its clinical trials. More below ↓↓↓

Continue reading “Tweeting with your MIND? Meet Stentrode: The Neuralink Rival ALREADY in Clinical Trials” »

Oct 31, 2020

A new spin on atoms gives scientists a closer look at quantum weirdness

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

When atoms get extremely close, they develop intriguing interactions that could be harnessed to create new generations of computing and other technologies. These interactions in the realm of quantum physics have proven difficult to study experimentally due the basic limitations of optical microscopes.

Now a team of Princeton researchers, led by Jeff Thompson, an assistant professor of electrical engineering, has developed a new way to control and measure that are so close together no optical lens can distinguish them.

Described in an article published Oct. 30 in the journal Science, their method excites closely-spaced erbium atoms in a crystal using a finely tuned laser in a nanometer-scale optical circuit. The researchers take advantage of the fact that each atom responds to slightly different frequencies, or colors, of , allowing the researchers to resolve and control multiple atoms, without relying on their .

Oct 30, 2020

Factbox: Russian, Iranian and Other Hackers Target 2020 U.S. Election

Posted by in category: computing

FILE PHOTO: Silhouettes of laptop users are seen next to a screen projection of binary code are seen in this picture illustration taken March 28, 2018. REUTERS/Dado Ruvic/Illustration Reuters.

Oct 30, 2020

World’s record entanglement storage sets up a milestone for Quantum Internet Alliance

Posted by in categories: computing, internet, quantum physics

Researchers from Sorbonne University in Paris have achieved a highly efficient transfer of quantum entanglement into and out of two quantum memory devices. This achievement brings a key ingredient for the scalability of a future quantum internet.

A quantum internet that connects multiple locations is a key step in quantum technology roadmaps worldwide. In this context, the European Quantum Flagship Programme launched the Quantum Internet Alliance in 2018. This consortium coordinated by Stephanie Wehner (QuTech-Delft) consists of 12 leading research groups at universities from eight European countries, in close cooperation with over 20 companies and institutes. They combined their resources and areas of expertise to develop a blueprint for a future quantum internet and the required technologies.

A quantum internet uses an intriguing quantum phenomenon to connect different nodes in a network together. In a normal network connection, nodes exchange information by sending electrons or photons back and forth, making them vulnerable to eavesdropping. In a quantum network, the nodes are connected by , Einstein’s famous “spooky action at a distance.” These non-classical correlations at large distances would allow not only secure communications beyond direct transmission but also distributed quantum computing or enhanced sensing.

Oct 29, 2020

Researchers break magnetic memory speed record

Posted by in categories: computing, particle physics

Spintronic devices are attractive alternatives to conventional computer chips, providing digital information storage that is highly energy efficient and also relatively easy to manufacture on a large scale. However, these devices, which rely on magnetic memory, are still hindered by their relatively slow speeds, compared to conventional electronic chips.

In a paper published in the journal Nature Electronics, an international team of researchers has reported a new technique for magnetization switching—the process used to “write” information into magnetic memory—that is nearly 100 times faster than state-of-the-art spintronic devices. The advance could lead to the development of ultrafast magnetic memory for computer chips that would retain data even when there is no power.

In the study, the researchers report using extremely short, 6-picosecond to switch the magnetization of a thin film in a magnetic device with great energy efficiency. A picosecond is one-trillionth of a second.

Oct 29, 2020

A New Way to Plug a Human Brain Into a Computer: via Veins

Posted by in categories: biotech/medical, computing, neuroscience

Article. I guess having implants directly on the brain isn’t the only way to have a brain to machine interface. The scientists involved in the study found an alternative by picking up signals through the blood vessels.

It’s not as information packed as a direct brain connection, but it’s not as invasive.

I think it would be a good alternative or even complementary to direct brain implants. Interesting. 😃

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Oct 28, 2020

In a first, researchers extract secret key used to encrypt Intel CPU code

Posted by in categories: computing, encryption

Hackers can now reverse engineer updates or write their own custom firmware.

Oct 28, 2020

Watch the AMD RX 6000 Big Navi announcement live here today

Posted by in category: computing

Dr. Lisa Su is set to unveil the first Big Navi GPUs today at 12pm ET (9am PT, 4pm UK).

Oct 27, 2020

This Whiter-Than-White Paint Is Like the Opposite of Vantablack

Posted by in categories: computing, cosmology

CREATING ARTIFICIAL SKIES IN UNDERGROUND HABITATS ON MARS & MERCURY. This will be an interesting subject for much deliberation in the future: how to best create artificial skies in sealed habitats. Metamaterial vantablack is a surface so perfectly dark that if you stood in a room where the ceiling, walls and floor were covered with it, you would feel like you were floating in black space. Disneyland must get off its butt and create a big room like this. Now a new paint (not quite the opposite of vantablack as it claims) has been invented, which will reflect back nearly 100% of light hitting it, an interesting way to augment existing lighting in a building by painting the ceiling with the stuff.

And here is something which I told you before: if the human eye stares at a totally uniform color, with no discernable features it doesn’t know where to focus, and psychologically can see this as a kind of “sky.” Since there is nothing to focus on, the eye assumes it is the far away sky and focusses to infinity or goes into its least-energetic focusing mode, as in looking at a blank sky.

View a large computer screen with a totally uniform color, through a tube which blocks the edge of the screen from view. You already see this effect with this small experiment.

Continue reading “This Whiter-Than-White Paint Is Like the Opposite of Vantablack” »