Science of Lightsabers

May the 4th be with you

Whether you’re a Star Wars superfan or find yourself lost when the conversation turns to discussions of the feasibility of the Death Star, you can probably identify the epic space series’ iconic lightsaber. The lightsaber has become one of the most recognizable images in popular culture, but is it purely fiction or could it be a reality?

According to the Star Wars books, lightsabers are pretty complex devices but essentially boil down to a few key elements: a power source and emitter to create light, a crystal to focus the light into a blade, a blade containment field, and a negatively charged fissure. In the Star Wars galaxy, a lightsaber creates energy, focuses it, and contains it.

But that’s fiction and those ideas are not in line with current science and technology. So how could we build a lightsaber with the tools we have today?

Many people look initially to laser technology when discussing a practical lightsaber. It’s unrealistic to say that light could be the source of the blade seeing as light has no mass (creating a pretty insufficient weapon), but lasers could be an alternative. It may seem contradictory to say that lasers could be the blade in a lightsaber when lasers are essentially light focused to a very fine point, but as Looper puts it, light is to a laser what a tree is to paper.

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While you may be unfamiliar with Khalil Amine, he has made an immense impact in your life if you happen to use batteries in any way.

As a researcher with a vision of where the science can be applied in the market, Amine has been monumental in developing and moving some of the biggest breakthroughs in battery technology from the lab to the marketplace.

Amine is currently head of the Technology Development Group in the Battery Technology Department at Argonne National Laboratory. From 1998-2008 he was the most cited scientist in the world in the field of battery technology.

He is the chair of the organizing committee for the 18th International Meeting on Lithium Batteries being held this June in Chicago.

Listen to the podcast and download this episode and others for free through the iTunes Store, SoundCloud, or our RSS Feed. You can also find us on Stitcher.

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Nanowire cooling

Flexible electrocaloric fabric of nanowire array can cool.
Image: Qing Wang/Penn State

The utilization of nanowires has opened a new branch of science for many researchers. While some have focused on applying this technology to energy systems, researchers from Penn State are using the nanowires to develop solid state personal cooling systems.

A new study from the university shows that nanowires could help develop a material for lightweight cooling systems, which could be incorporated into firefighting gear, athletic uniforms, and other wearables.

“Most electrocaloric ceramic materials contain lead,” says Qing Wang, professor of materials science and engineering at Penn State. “We try not to use lead. Conventional cooling systems use coolants that can be environmentally problematic as well. Our nanowire array can cool without these problems.”

This from Penn State:

Electrocaloric materials are nanostructured materials that show a reversible temperature change under an applied electric field. Previously available electrocaloric materials were single crystals, bulk ceramics, or ceramic thin films that could cool, but are limited because they are rigid, fragile, and have poor processability. Ferroelectric polymers also can cool, but the electric field needed to induce cooling is above the safety limit for humans.

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For organizations interested in expanding their networks within corporate, academic, governmental, and scientific spheres, ECS offers an advantageous alternative to individual membershipECS logo

Institutional membership with ECS admits your organization into an elite group of scientists, academics, and professionals. It gives your organization access to the vast arrays of information, people, and breaking research that ECS has to offer.

Moreover, institutional membership secures your organization’s place within an ever expanding, collaborative network of innovative thinkers and member organizations.

Want to get a better sense of the scope of this growing network? Check out our list of current institutional ECS members!

To accommodate the varied needs of prospective institutional member organizations,  ECS offers five different levels of institutional membership. Each level has its own distinct set of benefits and discounts. Select the level of institutional membership which best suits your organization!

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The 229th ECS Meeting in San Diego will feature three professional development workshops, providing attendees critical opportunities to develop and further their professional careers.

Free for all meeting registrants, these workshops are designed to provide attendees with opportunities to enhance their networking and career search skills. Don’t miss out!

Part 1: Essential Elements for Employment Success
susko

John R. Susko, Instructor

John R. Susko, Instructor
Sunday | 2:00 p.m. – 4:00 p.m.
Monday | 8:00 a.m. – 10:00 a.m.
Cobalt 501 C

Landing your next job requires selective and effective networking, developing and submitting specifically targeted résumés and cover letters, locating relevant job opportunities and preparing for and participating in the job interview. This workshop will provide up-to-date information and tips for employment success.

Part 2: Résumé Review

John R. Susko, Instructor
Monday | 12:00 p.m. – 4:00 p.m.
Tuesday | 8:00 a.m. – 12:00 p.m.
Wednesday | 8:00 a.m. – 12:00 p.m.
Cobalt 501 C

Now that you’ve attended Part 1: Essential Elements for Employment Success, bring your résumé for a one-on-one session with an industry leader and expert on résumé development. You will walk away with a résumé that is sure to land you your next interview.

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Remembering Harry Kroto

Harry KrotoA giant among giants

Harry Kroto, distinguished chemist and pioneering nanocarbons researcher, passed away on April 30, 2016 at the age of 76. Kroto, a giant among giants, made an immense impact not only on ECS and its scientific discipline – but the world at large.

“Harry Kroto’s passing is a great loss to science and society as a whole,” says Bruce Weisman, professor at Rice University and division chair of the ECS Nanocarbons Division. “He was an exceptional researcher whose 1985 work with Rick Smalley and Bob Curl launched the field of nanocarbons research and nanotechnology.”

Revolutionizing chemistry

That work conducted by Kroto, Smalley, and Curl yielded the discovery of the C60 structure that became known as the buckminsterfullerene (or the “buckyball” for short). Prior to this breakthrough, there were only two known forms of pure carbon: graphite and diamond. The work opened a new branch in chemistry with unbound possibilities, earning the scientists the 1996 Nobel Prize in Chemistry.

The field of nanocarbons and fullerenes, since the discovery by Kroto and company, has evolved into an area with almost limitless potential. The applications for this scientific discipline are wide-ranging – from energy harvesting to sensing and biosensing to biomedical applications and far beyond. Research in this field continues to fill the pages of scholarly journals, making possible innovations that were not even conceived before the seminal 1985 work.

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Making Music through Tesla Coils

Musicians ArcAttack are bringing new meaning to the genre of electronic music with their rendition of Europe’s “Final Countdown” rendered through the hums of the infamous Tesla coils.

In order to produce the fury of sound and electricity, the band rigged their instruments to the frequencies of electrical current coursing through the coils. The resulting sparks can cause vibrations through the air at predetermined frequencies.

Texting while walkingSmartphones are amazing little bundles of electrochemistry. From the sensors that pick up your touch and analyze your voice to the battery that is small and powerful enough to provide enough power to run applications on demand – the innovative science behind smartphones has changed the lives of people around the world.

But sometimes those changes are not completely positive. With increased dependence on smartphones, many people now roam the sidewalk with their nose buried in their phones. According to The Wall Street Journal, the number of distracted pedestrians using cellphones is up 124 percent from 2010. Some researchers are even blaming portable electronic gadgets for 10 percent of pedestrian injuries and a half-dozen deaths each year.

In Germany, these distracted pedestrians have been deemed “sombies,” or “smartphone zombies.” And the German government isn’t just looking to throw out a new buzzword, they’re also seeking to solve this issue.

According to reports from The Local, the city of Augsburg recently installed rows of LED lights into the sidewalk that can sense when distracted pedestrians are approaching and give off a bright flash of red to warn them to not mindlessly wander into the street.

“We realized that the normal traffic light isn’t in the line of sight of many pedestrians these days,” said Tobias Harms of the Augsburg city administration in an interview with The Augsburger Allgemeine. “So we decided to have an additional set of lights – the more we have, the more people are likely to notice them.”

arpa-eThe U.S. Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) has recently announced up to $30 million in funding for a new program that focuses on renewable energy to convert air and water into cost-competitive liquid fuels.

The program, titled Renewable Energy to Fuels through Utilization of Energy-dense Liquids (REFUEL), is aimed at developing technologies that use renewable energy to convert air and water into carbon neutral liquid fuels – which can be converted into hydrogen or electricity to provide power for sustainable transportation.

The majority of vehicles in the transportation sector depend on liquid fuels such as gasoline or diesel to operate. While liquid fuels are energy dense and can be stored for a long period of time, liquid fossil fuels emit significant amounts of carbon dioxide into the environment. These emissions account for over 20 percent of the U.S.’s total greenhouse gas emissions and contribute to the overall effects of climate change.

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Wasted Food is Wasted Energy

When we discuss energy, we usually talk about how to harness it or how to store it. But what about conserving the energy we’re wasting every day?

A recent study out of the University of Texas uncovered just how much energy we’re wasting through the excessive waste of food. For every four meals that make their way to our plates, an equivalent of one to two is discarded. When examining the energy used to grow, irrigate, fertilize, and transport that food — the amount of energy wasted begins to add up. Watch the video.

food-video