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Archive for the ‘engineering’ category: Page 172

Dec 7, 2018

Gecko-inspired nanofiber ‘carpet’ could lead to superpower coatings

Posted by in categories: engineering, nanotechnology

A new way to make arrays of nanofibers that gets its inspiration from polar bear fur, lotus leaves, and gecko feet could lead to coatings that are sticky, repellant, insulating, or light emitting.

“This is so removed from anything I’ve ever seen that I would have thought it was impossible,” says Joerg Lahann, a professor of chemical engineering at the University of Michigan and senior author of the paper, which appears in Science.

Polar bear hairs are structured to let light in while keeping heat from escaping. Water-repelling lotus leaves are coated with arrays of microscopic waxy tubules. And the nanoscale hairs on the bottoms of gravity-defying gecko feet get so close to other surfaces that atomic forces of attraction come into play.

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Dec 6, 2018

Washington Post: Breaking News, World, US, DC News & Analysis

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

Virginia Tech announced Thursday it will receive a record $50 million gift to support biomedical research, a landmark donation for the public university that will expand the influence of its academic health center in Roanoke.

The gift comes from the Horace G. Fralin Charitable Trust and from Heywood and Cynthia Fralin. It is twice as large as the previous record, a $25 million donation from Alice and Bill Goodwin for an engineering building that opened in 2014 on the university’s main campus in Blacksburg.

The new funding will help the university recruit and retain researchers, a spokesman said. A biomedical research institute will be named for the Fralin family and based within the Virginia Tech Carilion Academic Health Center.

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Dec 4, 2018

Scientists create ‘liquid crystal’ that gets THICKER when stretched

Posted by in categories: 3D printing, engineering

The discovery by researchers at the University of Leeds marks a major breakthrough which has eluded material scientists for more than 30 years.

The ‘auxetic’ stretching property, which is found in human tendons and cat skin, had only been recreated using conventional materials.

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Dec 3, 2018

Henri Becquerel and the Serendipitous Discovery of Radioactivity

Posted by in categories: education, engineering, particle physics, transportation

Antoine Henri Becquerel (born December 15, 1852 in Paris, France), known as Henri Becquerel, was a French physicist who discovered radioactivity, a process in which an atomic nucleus emits particles because it is unstable. He won the 1903 Nobel Prize in Physics with Pierre and Marie Curie, the latter of whom was Becquerel’s graduate student. The SI unit for radioactivity called the becquerel (or Bq), which measures the amount of ionizing radiation that is released when an atom experiences radioactive decay, is also named after Becquerel.

Becquerel was born December 15, 1852 in Paris, France, to Alexandre-Edmond Becquerel and Aurelie Quenard. At an early age, Becquerel attended the preparatory school Lycée Louis-le-Grand, located in Paris. In 1872, Becquerel began attending the École Polytechnique and in 1874 the École des Ponts et Chaussées (Bridges and Highways School), where he studied civil engineering.

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Dec 2, 2018

Harvard Scientists to Release Sun-Dimming Sky Chemical in 2019

Posted by in categories: climatology, engineering, military, sustainability

Critics say that geoengineering efforts are Band-Aid solutions that treat the symptoms of climate change instead of the cause: global carbon emissions. Jim Thomas, the co-executive director of an environmental advocacy organization called the ETC Group, told Nature that he fears the Harvard project could push the concept of geoengineering into the mainstream.

But advocates say that anything that could buy some extra time in the face of looming climate catastrophe is worth exploring.

“I’m studying a chemical substance,” Harvard researcher Zhen Dai told Nature. “It’s not like it’s a nuclear bomb.”

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Dec 1, 2018

Supersonic air travel is finally coming back

Posted by in categories: engineering, ethics, policy, transportation

Supersonic air travel is back. 15 years after the Concorde was grounded, everyone from aerospace companies to NASA to small startups is working to bring back ultrafast civilian aircraft. We take a look at the engineering challenges that make supersonic flight so difficult, and try to figure out what’s different about this new generation of planes.

The Verge’s sponsors play an important role in funding our journalism, but do not influence editorial content. For more information about our ethics policy, visit https://www.theverge.com/ethics-statement.

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Nov 29, 2018

Hydrogel-based electrodes for brain implants developed

Posted by in categories: biological, engineering, neuroscience

Hydrogels are physical and chemical polymer networks capable of retaining large quantities of liquid in aqueous conditions without losing their dimensional stability. They are used in a whole host of applications, and in combination with other components and they acquire specific properties such as electrical conductivity. The Materials + Technology research group in the Department of Chemical Engineering and Environment of the UPV/EHU’s Faculty of Engineering selected a biopolymer that had not previously been used for applications of this type: starch. “One of our lines of research focuses on starch, and we regard it as having biological, physical and chemical properties suitable for producing hydrogels,” said Kizkitza Gonzalez-Munduate, a member of the group.

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Nov 29, 2018

New catalyst material produces abundant cheap hydrogen

Posted by in categories: chemistry, energy, engineering, government, sustainability

QUT chemistry researchers have discovered cheaper and more efficient materials for producing hydrogen for the storage of renewable energy that could replace current water-splitting catalysts.

Professor Anthony O’Mullane said the potential for the chemical storage of renewable energy in the form of hydrogen was being investigated around the world.

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Nov 27, 2018

Elon Musk says there’s a 70% chance he’s going to move to Mars

Posted by in categories: climatology, Elon Musk, engineering, habitats, space travel

Elon Musk wants humans to make it to Mars. With his company SpaceX at his back, he’s pushed forward with some incredibly bold claims about what is possible for mankind on the Red Planet. He’s shown off concepts for Mars settlements and even called out scientists who say climate engineering on the planet is impossible.

Now, in an interview with HBO’s Axios, Musk doubles down on one of the more off-the-wall claims he’s made during his years in the spotlight. Mars, he says, will be his eventual home, and he estimates his odds of moving to the planet at a generous 70%.

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Nov 20, 2018

Space Station Crew Discusses 20 Years of Operations

Posted by in categories: engineering, space

Twenty years ago today, construction began on the greatest international science and engineering project in human history — the International Space Station. In case you missed it, we celebrated the occasion by talking to the crew currently living and working in space. Take a look: https://go.nasa.gov/2qVKqt9 #SpaceStation20th

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