X-Ray Vision: Berkeley’s High-Speed Electrons Fuel Atomic-Scale Science

BERKELEY, California—A group of eager writers attending the World Conference of Science Journalists 2017 stood on an upper platform at Berkeley’s Advanced Light Source (ALS) research lab. Under their feet, electrons raced at nearly the speed of light. Overhead, an iconic domed ceiling—the same ceiling under which Nobel laureate and nuclear scientist Ernest Lawrence invented the cyclotron—endowed a jumbled space full of laboratory pipes and instruments with the airy feel of a giant atrium.

As the journalists enjoyed their visit to Lawrence Berkeley National Laboratory on 29 October, magnets steered groups of electrons around a giant circle, 200 meters in circumference, and released light at 40 different openings. “Think of the electrons as cars with their headlights on,” said physicist Roger Falcone, director of ALS. “As they drive around, flashes of light come out each of those ports.”

Peering into molecules  

At the ends of each of the 40 light beams—in a range of wavelengths spanning the electromagnetic spectrum from infrared to both soft and hard X-rays—instruments perform experiments that depend on this constant flow of electrons. The relentless light penetrates materials and allows scientists to study the atoms and molecules inside. Each beam can be tuned to a different wavelength to reveal a particular element or molecule. Scientists use the beams to study everything from how the crystallographic structure of a new polymer reflects light rays to how a bacterium breathes in the absence of oxygen.

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The Dawn of Gallium Oxide Microelectronics

WASHINGTON, D.C., February 6, 2018– Silicon has long been the go-to material in the world of microelectronics and semiconductor technology. But silicon still faces limitations, particularly with scalability for power applications. Pushing semiconductor technology to its full potential requires smaller designs at higher energy density.

“One of the largest shortcomings in the world of microelectronics is always good use of power: Designers are always looking to reduce excess power consumption and unnecessary heat generation,” said Gregg Jessen, principal electronics engineer at the Air Force Research Laboratory. “Usually, you would do this by scaling the devices. But the technologies in use today are already scaled close to their limits for the operating voltage desired in many applications. They are limited by their critical electric field strength.”

Transparent conductive oxides are a key emerging material in semiconductor technology, offering the unlikely combination of conductivity and transparency over the visual spectrum. One conductive oxide in particular has unique properties that allow it to function well in power switching: Ga2O3, or gallium oxide, a material with an incredibly large bandgap.



Deep Dive into Engineering the World’s Most Advanced ROV System

In August 2017 a research group led by explorer and philanthropist Paul G. Allen used ultra-high-tech underwater equipment to locate the wreckage of the USS Indianapolis, a ship that sank in the final days of WWII after it was struck by Japanese torpedoes. The discovery was made by Mr. Allen’s company, Vulcan Inc., using a new expedition ship it acquired for the purpose of seabed discovery—the RV Petrel.

Petrel was outfitted with cutting-edge technologies, including an autonomous underwater vehicle (AUV), which uses side-scan sonar to locate objects on the seabed, and a remotely operated vehicle (ROV) for further investigation and video documentation.

While AUVs and ROVs are becoming more common, the USS Indianapolis was discovered at a depth of nearly 6,000 m, and technologies suitable for robust research at great depth can be hard to find.



Marvin Minsky, computing pioneer, cognitive scientist, and a founding father of artificial intelligence known for his relentless ambition and forward thinking, died in late January of this year at age 88, leaving a legacy.

Minsky lived his life on the cutting edge of computer technology, trailblazing the path to discovery and embracing humor in his quest to elucidate the mysteries of the human brain in order to make better machines.

He worked alongside collaborators who were also revolutionizing their fields…

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Augmenting NASA’s Mars Simulation for the Health of Astronauts

Eight-thousand, two-hundred feet above sea level on the northern slope of Mauna Loa in a place surrounded by the barren, lava-rock landscape of an abandoned quarry, six scientists are living in isolation for 365 days in a roughly 1,000 sq. ft. dome.

That’s tight quarters. That’s a year stuck in a space not much larger than a racquetball court.

The domed habitat is called HI-SEAS, the Hawai’I Space Exploration Analog and Simulation…

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Coding: The Creative Medium of Our Time

Ira Greenberg treats himself like a computer. His is the art + science of using coding as a paintbrush and exploring the iterative process of creation. Working generatively, Ira creates art using code and algorithms that are art themselves. The self-dubbed “coding evangelist” believes that coding is the creative mode of our time.

While he has two degrees in painting Greenberg decided he wanted to start working with software for art-making. But he found the shrink-wrapped variety wouldn’t do, and he decided to teach himself coding so he could work creatively at the level of math and algorithms. Now, he’s spent 25 years working to figure out the physical disconnect of the computational medium versus painting.

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The Most Pressing Problem in VR

If you’re following VR, you’re probably hearing a lot about presence. But what is it?

The definition is elusive. Presence in virtual environments has been described, measured, and theorized in all kinds of ways. Whether they have dedicated decades of their lives to the subject or they are part of today’s new generation with a fresh take on VR, researchers are still struggling to come up with a unified conception of presence.

As a huge new wave of presence-inducing technologies hits the market this year, for the first time many people will experience presence and broken presence in virtual environments, so understanding what works and doesn’t is important.

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Next generation tools aid interdisciplinary genome research

In 1953, James D. Watson and Francis Crick discovered the double-helix structure of the DNA strand –a ribbon of genetic information that lives in each cell of a living organism.   Later, in 1990, a group of organizations including the National Institutes of Health launched  the Human Genome Project, a global collaborative effort to identify all the genes in the human DNA strand.  At that time, the event was heralded as the largest investigative project in modern science, and it took 13 years and nearly $3 billion to yield a complete human genome.

The Human Genome Project completed in 2003 was followed by a variety of other DNA research projects conducted by various organizations.  The widespread study of DNA ushered in a “genomic revolution” characterized by constant technological advances in the fields of genetics and molecular biology.  Nearly a decade later, its momentum is still steady as hundreds of new biological tools amass stores of genomic data.

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UNT polymer engineers partner with industry leader to develop advanced coatings technology

Building contractors across the country may owe certain thanks to UNT plastics engineers over the next few years.  Regents Professor of materials science and engineering Dr. Witold Brostow and his team at the Laboratory of Advanced Polymers and Optimized Materials(LAPOM) just completed their first contract with McKinney, TX based Encore Wire Corporation.

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