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Archive for the ‘computing’ category: Page 542

Jul 5, 2017

Carbon nanotube reinforce Composites can reduce space vehicle mass

Posted by in categories: computing, nanotechnology, space, transportation

NASA’s Space Technology Mission Directorate (STMD) is keenly interested in nanotechnology – an approach that can reduce the mass and improve the performance of aerospace systems. NASA computer modeling analysis has shown that composites using carbon nanotube reinforcements could lead to a 30 percent reduction in the total mass of a launch vehicle.

“No single technology would have that much of an impact to reduce the mass of a launch vehicle by that much,” explains Michael Meador, Program Element Manager for Lightweight Materials and Manufacturing at NASA’s Glenn Research Center in Cleveland, Ohio.

Tensile properties of a carbon nanotube fiber-based composite tank were tested in a May 16 test flight.

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Jul 3, 2017

Would human enhancement create Supermen or super tyrants?

Posted by in categories: computing, ethics, nanotechnology, neuroscience, transhumanism

The prospect of attaining superior intelligence or physical attributes may be tempting or appear liberating, but cybernetic enhancement could, theoretically, also be used as a means of control. Whoever manufactures the technologies that augment humans would be in a very powerful position and wield an immense degree of control over their human customers (or subjects). Moreover, cybernetically enhanced humans could see their microchips hacked, have their sensations detected by unwanted parties and stored in a database, or be at risk of receiving unsolicited or unpleasant impulses. Might we evolve from homo sapiens to homo servus?


The dream that we may one day transcend our physical and intellectual barriers through advancements in cybernetics and nanotechnology could became a reality during this century. But would this be a blessing or a curse?

As science expands its frontiers and technology continues to evolve, ideas once deemed fanciful or considered part of science fiction find themselves within the realm of possibility. New discoveries may give rise to unique potential and perils, as the field of ethics struggles to keep pace with the latest technological advancements. The dream that one day we humans may eclipse our physical and mental fetters through augmentation by cybernetics or nanotechnology could become a reality. Although transhumanism and posthumanism are considered modern concepts, the idea of improving or transcending the human condition has been explored in philosophy and literature since at least the mid-19th century.

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Jun 30, 2017

IBM has made Carbon nanotubes transistors smaller and faster than silicon

Posted by in categories: computing, nanotechnology, particle physics

IBM scientists have made carbon nanotube transistors smaller and faster silicon transistors. Carbon nanotube transistors have long had the potential to be better than silicon, but this is the first time when that promise has been realized. Now IBM and others will have to scale up superior carbon nanotube devices.

IBM scientists have been experimenting with carbon nanotubes, rolled-up sheets of carbon atoms just 1 nanometer, or a billionth of a meter, in diameter. But difficulties working with the material have meant that, for optimal performance, nanotube transistors have to be even larger than current silicon transistors, which are about 100 nanometers across. To cut that number down, a team of scientists used a new technique to build the contacts that draw current into and out of the carbon nanotube transistor. They constructed the contacts out of molybdenum, which can bond directly to the ends of the nanotubes, making them smaller. They also added cobalt so the bonding could take place at a lower temperature, allowing them to shrink the gap between the contacts. Another advance allowed for practical transistors. Carrying enough electrical current from one contact to another requires several nanotube “wires.

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Jun 24, 2017

Intel Launches Core i9 X-Series CPUs, 10-Core Available Now and 18 in October

Posted by in category: computing

Intel’s new Core i9 CPU family and its X-Series of processors are both available for preorder today, with shipments expected on June 26.

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Jun 23, 2017

Magnetic nanoknots evoke Lord Kelvin’s vortex theory of atoms

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

(Phys.org)—In the late 1800s when scientists were still trying to figure out what exactly atoms are, one of the leading theories, proposed by Lord Kelvin, was that atoms are knots of swirling vortices in the aether. Although this idea turned out to be completely wrong, it ushered in modern knot theory, which today is used in various areas of science such as fluid dynamics, the structure of DNA, and the concept of chirality.

Now in a new paper published in Physical Review Letters, mathematical physicist Paul Sutcliffe at Durham University in the UK has theoretically shown that nanoparticles called magnetic skyrmions can be tied into various types of knots with different magnetic properties. He explains that, in a sense, these nanoknots represent a “nanoscale resurrection of Kelvin’s dream of knotted fields.”

Skyrmions are the name of a general class of particles that are made by twisting a field. When this field is a magnetic field, the skyrmions are called magnetic skyrmions. Magnetic skyrmions have attracted a lot of attention recently due to their potential applications in spintronics, where electron spins (which are related to the electron’s magnetic properties) are exploited in the design of transistors, storage media, and related devices.

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Jun 19, 2017

Why Interstellar Travel Will Be Possible Sooner Than You Think

Posted by in categories: computing, physics, space travel

The term “moonshot” is sometimes invoked to denote a project so outrageously ambitious that it can only be described by comparing it to the Apollo 11 mission to land the first human on the Moon. The Breakthrough Starshot Initiative transcends the moonshot descriptor because its purpose goes far beyond the Moon. The aptly-named project seeks to travel to the nearest stars.

The brainchild of Russian-born tech entrepreneur billionaire Yuri Milner, Breakthrough Starshot was announced in April 2016 at a press conference joined by renowned physicists including Stephen Hawking and Freeman Dyson. While still early, the current vision is that thousands of wafer-sized chips attached to large, silver lightsails will be placed into Earth orbit and accelerated by the pressure of an intense Earth-based laser hitting the lightsail.

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Jun 15, 2017

What is a Drone? (Future A to Z)

Posted by in categories: automation, computing, drones, electronics, military, nuclear weapons, robotics/AI

Drones. Drone is a word you see pretty often in today’s pop culture. But drones seem to be an extremely diverse species. Even flightless vehicles are occasionally referred to as drones. So what exactly is a drone?

In this video series, the Galactic Public Archives takes bite-sized looks at a variety of terms, technologies, and ideas that are likely to be prominent in the future. Terms are regularly changing and being redefined with the passing of time. With constant breakthroughs and the development of new technology and other resources, we seek to define what these things are and how they will impact our future.

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Jun 15, 2017

The New Gnosticism of the Transhumanists

Posted by in categories: computing, cyborgs, geopolitics, life extension, neuroscience, singularity, transhumanism

New story about the recent book on #transhumanism To Be a Machine:


For the (very very quickly) upcoming Love & Death Issue, I had the chance to interview the journalist, Mark O’Connell, who is the author most recently of To Be A Machine: Adventures Among Cyborgs, Utopians, Hackers, and the Futurists Solving the Modest Problem of Death. He also wrote that amazing piece in the New York Times Magazine a few months ago about Zoltan Istvan, the transhumanist who ran for president and drove across the country in a coffin-shaped bus. O’Connell’s new book reads like a travelogue among characters like Zoltan, futuristic types (mostly from California) that O’Connell describes with a charming blend of cynicism and aloof interest. Like an agnostic amidst a group of “true believers,” O’Connell is both repelled by and drawn in by the belief system that transhumanism proffers.

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Jun 14, 2017

Organ chips get smart and go electric

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

Organs-on-Chips (Organ Chips) are emerging as powerful tools that allow researchers to study the physiology of human organs and tissues in ways not possible before. By mimicking normal blood flow, the mechanical microenvironment, and how different tissues physically interface with one another in living organs, they offer a more systematic approach to testing drugs than other in vitro methods that ultimately could help to replace animal testing.

As it can take weeks to grow human cells into intact differentiated and functional tissues within Organ Chips, such as those that mimic the lung and intestine, and researchers seek to understand how drugs, toxins or other perturbations alter tissue structure and function, the team at the Wyss Institute for Biologically Inspired Engineering led by Donald Ingber has been searching for ways to non-invasively monitor the health and maturity of cells cultured within these microfluidic devices over extended times.

It has been particularly difficult to measure changes in electrical functions of cells grown within Organ Chips that are normally electrically active, such as neuronal cells in the brain or beating heart cells, both during their differentiation and in response to drugs.

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Jun 13, 2017

When a Computer Program Keeps You in Jail

Posted by in category: computing

Intellectual property claims keep relevant evidence out of court.

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