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Archive for the ‘computing’ category: Page 782

Sep 17, 2015

System can convert MRI heart scans into 3D-printed, physical models in a few hours

Posted by in categories: 3D printing, biotech/medical, computing, engineering

Researchers at MIT and Boston Children’s Hospital have developed a system that can take MRI scans of a patient’s heart and, in a matter of hours, convert them into a tangible, physical model that surgeons can use to plan surgery.

The models could provide a more intuitive way for surgeons to assess and prepare for the anatomical idiosyncrasies of individual patients. “Our collaborators are convinced that this will make a difference,” says Polina Golland, a professor of and computer science at MIT, who led the project. “The phrase I heard is that ‘surgeons see with their hands,’ that the perception is in the touch.”

This fall, seven cardiac surgeons at Boston Children’s Hospital will participate in a study intended to evaluate the models’ usefulness.

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Sep 16, 2015

MIT creates diode for light, makes photonic silicon chips possible

Posted by in categories: computing, electronics, mobile phones, transportation

Light-emitting diodes (LEDs) are a cornerstone of consumer tech. They make thin-and-light TVs and smartphones possible, provide efficient household, handheld, and automobile illumination, and, of course, without LEDs your router would not have blinkenlights. Thanks to some engineers from MIT, though, a new diode looks set to steal the humble LED’s thunder. Dubbed a diode for light, and crafted using standard silicon chip fabrication techniques, this is a key discovery that will pave the path to photonic (as opposed to electronic) pathways on computer chips and circuit boards.

In electronics, a diode is a gate that only allows electrons to pass in one direction (and with an LED, it also emits light at the same time). In this case, the diode for light — which is made from a thin layer of garnet — is transparent in one direction, but opaque in the other. Garnet is usually hard to deposit on a silicon wafer, but the MIT researchers found a way to do it — and that’s really the meat of this discovery.

Diode for light diagramBasically, it’s now possible, with regular chip-fab tools, to create an integrated silicon circuit with optical, rather than electronic, interconnects — both internally, and between other chips. Photons, moving through the kind of transparent metamaterials that would be required to make such a circuit, move a lot faster than electrons. Furthermore, optical channels, through wavelength-division multiplexing, can carry a lot more data than electric signals. At the moment, hundreds of copper wires connect the CPU, northbridge, and memory — with on-chip photonic controllers, a motherboard might only have 10 or 20 channels.

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Sep 15, 2015

Nanoscale Solar Cells Outperform Traditional Technology

Posted by in categories: computing, information science, materials, nanotechnology, solar power, sustainability

Scientists have designed a novel type of nanoscale solar cell. Initial studies and computer modelling predict these cells will outperform traditional solar panels, reach power conversion levels by over 40 percent.

Solar power cells work through the conversion of sunlight into electricity using photovoltaics. Here solar energy is converted into direct current. A photovoltaic system uses several solar panels; with each panel composed of a number of solar cells. This combines to create a system for the supply usable solar power.

To investigate what is possible in terms of solar power, the researchers have examined the Shockley-Queisser limit for different materials. This equation describes the maximum solar energy conversion efficiency achievable for a particular material, allowing different materials to be compared as candidates for power generation.

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Sep 15, 2015

Facebook wants to put virtual reality on your phone

Posted by in categories: computing, mobile phones, virtual reality

Facebook FB is working on a stand-alone app that would support 360-degree—or “spherical”—video, allowing users to alter their viewing perspective with the mere tilt of their phones.

The app is still in early development, and would be available for both Apple AAPL and Android operating systems if it proves to be a go, sources close to the project told The Wall Street Journal.

Typically compiled from multiple cameras, the video format allows users to change their viewing perspective by tilting their phones, the Journal reported.

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Sep 14, 2015

Scientists Hope To Resurrect A Dead Girl Who Wanted To Live Inside A Computer

Posted by in categories: computing, life extension, neuroscience

Kim Suozzi died at age 23 from glioblastoma — a deadly brain tumour.

When she died in 2013, she made sure her fight for survival, albeit an unusual one, would not be forgotten.

She wanted to live forever through a computer and chose to have her brain frozen in the hopes that it may one day be resurrected and transformed into digital code.

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Sep 13, 2015

I got a computer chip implanted into my hand. Here’s how it went.

Posted by in categories: computing, cyborgs

Cool story:


Believe it or not, it happened at a presidential campaign event.

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Sep 13, 2015

Why The Future Of Technology Is All Too Human

Posted by in categories: computing, information science, robotics/AI

The concept of artificial intelligence got it’s start at a conference at Dartmouth in 1956. Optimism ran high and it was believed that machines would be able to do the work of humans within 20 years. Alas, it was not to be. By the 1970’s, funding dried up and technology entered the period now known as the AI winter.

Slowly, however, progress was made. Computers became increasingly able to do human tasks, such as character recognition, making recommendations on Amazon and organizing itineraries on travel sites. We didn’t see the algorithms at work, but they were there, computing on our behalf.

So the answer to our technological dilemma is, in fact, all too human. While the past favored those who could retain and process information efficiently, the future belongs to those who can imagine a better world and work with others to make it happen.

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Sep 12, 2015

Humans Will Have Cloud-Connected Hybrid Brains

Posted by in categories: biotech/medical, computing, engineering, nanotechnology, Ray Kurzweil, robotics/AI

So, you think you’ve seen it all? You haven’t seen anything yet. By the year 2030, advancements will excel anything we’ve seen before concerning human intelligence. In fact, predictions offer glimpses of something truly amazing – the development of a human hybrid, a mind that thinks in artificial intelligence.

Ray Kurzweil, director of engineering at Google, spoke openly about this idea at the Exponential Finance Conference in New York. He predicts that humans will have hybrid brains able to connect to the cloud, just as with computers. In this cloud, there will be thousands of computers which will update human intelligence. The larger the cloud, the more complicated the thinking. This will all be connected using DNA strands called Nanobots. Sounds like a Sci-Fi movie, doesn’t it?

Kurzweil says:

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Sep 12, 2015

Samsung Chip to Bring 6GB of RAM to Your Smartphone

Posted by in category: computing

Many of the top smartphones today have around 3GB of onboard memory.

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Sep 12, 2015

Introduction to Quantum Computers (2014, 1080p)

Posted by in categories: computing, quantum physics

https://www.youtube.com/watch?v=Fb3gn5GsvRk

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