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Aug 27, 2016

Ultraviolet light reveals how ancient Greek statues really looked

Posted by in category: media & arts

Original Greek statues were brightly painted, but after thousands of years, those paints have worn away. Find out how shining a light on the statues can be all that’s required to see them as they were thousands of years ago.

Although it seems impossible to think that anything could be left to discover after thousands of years of wind, sun, sand, and art students, finding the long lost patterns on a piece of ancient Greek sculpture can be as easy as shining a lamp on it. A technique called ‘raking light’ has been used to analyze art for a long time. A lamp is positioned carefully enough that the path of the light is almost parallel to the surface of the object. When used on paintings, this makes brushstrokes, grit, and dust obvious. On statues, the effect is more subtle. Brush-strokes are impossible to see, but because different paints wear off at different rates, the stone is raised in some places – protected from erosion by its cap of paint – and lowered in others. Elaborate patterns become visible.

Ultraviolet is also used to discern patterns. UV light makes many organic compounds fluoresce. Art dealers use UV lights to check if art has been touched up, since older paints have a lot of organic compounds and modern paints have relatively little. On ancient Greek statues, tiny fragments of pigment still left on the surface glow bright, illuminating more detailed patterns.

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Aug 27, 2016

These 3D-printed structures return to their original shapes after being distorted

Posted by in category: 3D printing

Luv this.


A team of engineers has used light to print 3D structures that “remember” their original shapes even after being stretched, twisted and bent at extreme angles.

(Representative image)(Representative image)

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Aug 27, 2016

Now You Can Print Parts For Your Motherboards With 3D Printer

Posted by in category: 3D printing

This could be bad news for some companies.


Many people love the flexibility of building their PC. They know that they can say what they want, how they want it. Each individual component in the PC can be customized to how the user wants it. Some people build them to achieve the top specifications while others will build them as cheaply as possible as are on a budget. Whatever the reason for building a PC, a little help has now been offered by ASUS, which will allow you to use 3D printing to print simply the components you need.

What ASUS plans to do is provide CAD files to customers to use their 3D printer to print their very own motherboard components. But, the printing is more for aesthetic reasons rather than anything else. The idea behind it is that consumers will be able to create a personalized look for their motherboard, or print other components in a particular color. Some suggestions also include being able to print company logo’s on parts also.

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Aug 27, 2016

Full-size, 3D-printed Stargate portal replica took 1,000 hours to create

Posted by in category: 3D printing

Art imitated in life again.


A 3D-printed, 20-foot Stargate portal replica is the centerpiece of a new exhibition at Belgium’s Musée royal de Mariemont.

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Aug 27, 2016

3D design and 3D printing have become viable tools for nuclear sector, specialists say

Posted by in category: 3D printing

Interesting.


3D design and 3D printing technologies have finally become viable tools for the nuclear sector, and various research projects have shown that they have the potential to greatly increase maintenance efficiency and reduce production costs.

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Aug 27, 2016

Researchers Create Microstereolithography for 4D Printing, Potential for Impacts in Medical, Solar & More

Posted by in categories: 3D printing, 4D printing, augmented reality, biotech/medical

download (15)Technology can be confusing when it begins moving at such an accelerated rate, perfectly exemplified by the 3D industry, and encompassing all that goes with it, from 3D scanning to 3D printing and then peripheral industries that are often connected too such as augmented and virtual realities. We’ve barely digested all the stunning innovations making impacts in so many different sectors, from 3D printed medical models that allow for more complex surgeries, to 3D printed parts for a suspension system that make racing bikes go faster, all the way to incredible toys for your kids using augmented reality systems.

Yet, while work is definitely just beginning in the 3D realm, scientists have already begun exploring a range of uses for 4D technology that should prove offer impacts in just as many applications, from the medical field to electronics and far beyond. It might seem like a lot all at once, but the two technologies definitely work together, with the 4D emphasis adding a more intuitive, smart angle to fabrication.

As we’ve seen in other studies using the application of heat, it would appear that 3D printed objects can be treated or manipulated to cause shapes to morph according to their environment, as well as remembering their previous state and going back to it in the appropriate conditions. Now, teams from both MIT and the Singapore University of Technology and Design (SUTD) are employing light in their endeavors to create smart structures. They’ve had good success too, if the amount of torturing they’ve put these materials through is any indication. According to the engineers, they’ve twisted, bent, and stretched everything from small coils to flowers fabricated out of numerous materials, and even a replica they made of the Eiffel tower. As is the case with structures being pushed into the 4D realm, all of the above materials reverted.

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Aug 27, 2016

Going beyond 3D printing to add a new dimension for additive manufacturing

Posted by in categories: 3D printing, materials

A team of Lawrence Livermore National Laboratory researchers has demonstrated the 3D printing of shape-shifting structures that can fold or unfold to reshape themselves when exposed to heat or electricity. The micro-architected structures were fabricated from a conductive, environmentally responsive polymer ink developed at the Lab.

In an article published recently by the journal Scientific Reports (link is external), Lab scientists and engineers revealed a strategy for creating boxes, spirals and spheres from shape memory polymers (SMPs), bio-based “smart” materials that exhibit shape-changes when resistively heated or when exposed to the appropriate temperature.

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Aug 27, 2016

As brain maps proliferate, scientists aim to sync them up

Posted by in categories: biotech/medical, neuroscience

Brain maps seem to come out in rapid succession these days. They take various forms: a map for word concepts, a map of individual cells’ activity, a map based on the organ’s physical contours.

What they share in common is the aspiration to take the lumpy mass of the brain and categorize it, somehow, into useable areas — not unlike the textbook brain images with their colored denotations of “occipital lobe” and “frontal cortex.”

But these maps often come along with a problem: They may not sync up with the other maps. Now a group of scientists have managed to sync up two of the most commonly used types of brain maps — for gene expression and brain structure — and they’re releasing their methods to any and all in the scientific community.

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Aug 27, 2016

Brain implants would make ‘The Matrix’ come to life

Posted by in categories: cyborgs, neuroscience

Los Angeles-based tech company Kernel is working on a ‘memory prosthesis’ to be placed in the hippocampus.

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Aug 27, 2016

How quantum computers will change the world of hacking

Posted by in categories: cybercrime/malcode, encryption, information science, quantum physics

There is a computing revolution coming, although nobody knows exactly when. What are known as “quantum computers” will be substantially more powerful than the devices we use today, capable of performing many types of computation that are impossible on modern machines.

But while faster computers are usually welcome, there are some computing operations that we currently rely on being hard (or slow) to perform.

Specifically, we rely on the fact that there are some codes that computers can’t break – or at least it would take them too long to break to be practical. Encryption algorithms scramble data into a form that renders it unintelligible to anyone that does not possess the necessary decryption key (normally a long string of random numbers).

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