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Category: engineering – Page 272

NASA’s designing a passenger jet that’ll break the sound barrier WITHOUT the boom

NASA has commissioned engineers to design a new kind of jet that can travel faster than the speed of sound, but without the telltale sonic boom. Instead, the aircraft will produce a soft thump as it breaks the sound barrier, which the researchers are adorably calling a “supersonic heartbeat”.

It’s hoped that the new jet could eventually fill the commercial gap left by the retirement of the Concorde — which travelled at twice the speed of sound (Mach 2) and could get passengers from London to New York in just 3.5 hours — but without all the noise complaints.

From an engineering point of view, we’ve long had the ability to travel at supersonic speeds — which is generally anything over 1,234 km/h — but when we do, it triggers a sound explosion that can travel thousands of metres in a jet’s wake, rattling houses and cars as it goes. As you can imagine, not exactly ideal for heavily trafficked flight paths.

Minister announces £204 million investment in doctoral training and Quantum Technologies science

UK is getting serious about Quantum especially in their universities; all £204 million worth.

Universities and Science minister Jo Johnson has announced two major investments in science and engineering research totaling £204 million.

Forty UK universities will share in £167 million that will support doctoral training over a two year period, while £37 million will be put into developing the graduate skills, specialist equipment and facilities that will put UK Quantum Technologies research at the forefront of the field.

The minister made the announcements during a visit to the University of Oxford where he met academics working in the Networked Quantum Information Technologies (NQIT) Quantum Technology Hub, which is led by Professor Ian Walmsley, one of four that form part of the £270 million UK National Quantum Technologies Programme.

In the Future You’ll Be a Superhero and Here’s How You’ll Get Your Superpowers

The knock on superheroes is that they’re unrealistic. This isn’t fair. Many superheroes have powers that we are close to or will be capable of engineering for ourselves. What’s unrealistic is the way those powers are doled out. Radioactive spiders aren’t going to make anyone strong any time soon.

Throw away those old origin stories and replace them with new scientific narratives and you’ve got something closer to the truth, which is this: We’re all going to have superpowers. Here’s the order in which we’re going to get them.

Superhuman Marksmanship

Superheroic Precedent: Hawkeye.

Researchers upgraded their smart glasses with a low-power multicore processor to employ stereo vision and deep-learning algorithms, making the user interface and experience more intuitive and convenient

K-Glass, smart glasses reinforced with augmented reality (AR) that were first developed by the Korea Advanced Institute of Science and Technology (KAIST) in 2014, with the second version released in 2015, is back with an even stronger model. The latest version, which KAIST researchers are calling K-Glass 3, allows users to text a message or type in key words for Internet surfing by offering a virtual keyboard for text and even one for a piano.

Currently, most wearable head-mounted displays (HMDs) suffer from a lack of rich user interfaces, short battery lives, and heavy weight. Some HMDs, such as Google Glass, use a touch panel and voice commands as an interface, but they are considered merely an extension of smartphones and are not optimized for wearable smart glasses. Recently, gaze recognition was proposed for HMDs including K-Glass 2, but gaze is insufficient to realize a natural user interface (UI) and experience (UX), such as user’s gesture recognition, due to its limited interactivity and lengthy gaze-calibration time, which can be up to several minutes.

As a solution, Professor Hoi-Jun Yoo and his team from the Electrical Engineering Department recently developed K-Glass 3 with a low-power natural UI and UX processor to enable convenient typing and screen pointing on HMDs with just bare hands. This processor is composed of a pre-processing core to implement stereo vision, seven deep-learning cores to accelerate real-time scene recognition within 33 milliseconds, and one rendering engine for the display.

Quantum dot solids: This generation’s silicon wafer?

Just as the single-crystal silicon wafer forever changed the nature of electronics 60 years ago, a group of Cornell researchers is hoping its work with quantum dot solids – crystals made out of crystals – can help usher in a new era in electronics.

The multidisciplinary team, led by Tobias Hanrath, associate professor in the Robert Frederick Smith School of Chemical and Biomolecular Engineering, and graduate student Kevin Whitham, has fashioned two-dimensional superstructures out of single-crystal building blocks. Through directed assembly and attachment processes, the lead selenide quantum dots are synthesized into larger crystals, then fused together to form atomically coherent square superlattices.

The difference between these and previous crystalline structures is the atomic coherence of each 5-nanometer crystal (a nanometer is one-billionth of a meter). They’re not connected by a substance between each crystal – they’re connected directly to each other. The electrical properties of these superstructures potentially are superior to existing semiconductor quantum dots, with anticipated applications in solar cells and other electronic devices.

Can a tree grow in space?

Satellites and spacecraft are generally complex to build on the ground, expensive to launch and obsolete in a decade or less.

These objects end up floating in orbit around the planet contributing to the pollution surrounding the Earth. But what if there was an alternative?

That’s the question David Barnhart, director of USC’s Space Engineering Research Center and lead for the Space Systems and Technology group for the USC Information Sciences Institute, is contemplating. What if we could just “grow” spacecraft, repurpose a hybrid of inorganic and organic materials and even allow food to grow in space?

Facebook wants to help internet providers get ready for virtual reality

Facebook today announced the launch of the Telecom Infra Project (TIP), which is bringing together a coalition of internet service providers and tech companies to focus on the engineering challenges of delivering high-res video and virtual reality. The group has 30 initial members including T-Mobile, Nokia, Intel, Deutsche Telekom, and SK Telecom. The approach is modeled after the Open Compute Project, which was started by Facebook in 2011 to share designs of data-center products, and has ties to Facebook’s Internet.org initiative to bring connectivity to rural areas and developing countries.

“Every day, more people and more devices around the world are coming online, and it’s becoming easier to share data-intensive experiences like video and virtual reality,” Jay Parikh, Facebook’s global head of engineering and infrastructure, writes in a blog post. “Scaling traditional telecom infrastructure to meet this global data challenge is not moving as fast as people need it to.”

The TIP’s technology companies and hardware makers will work together to contribute designs for products like wireless radios and optical fiber gear to better manage, store, and deliver intensive data, while telecoms can then use those designs in practice. “This will result in significant gains in cost and operational efficiency for both rural and urban deployments,” Parikh adds. The group will also work toward accelerating the development of 5G networks.

Prosthetics: Amputee James Young unveils hi-tech synthetic arm inspired by Metal Gear Solid

The job advertisement was highly specific: applicants had to be passionate about computer games and live in the UK. Oh, and they also had to be amputees who were interested in wearing a futuristic prosthetic limb.

James Young knew straight away he had a better shot than most. After losing an arm and a leg in a rail accident in 2012, the 25-year-old Londoner had taught himself to use a video-game controller with one hand and his teeth. “How many amputee gamers can there be?” he asked himself.

In the end, more than 60 people replied to the ad, which was looking for a games-mad amputee to become the recipient of a bespoke high-tech prosthetic arm inspired by Metal Gear Solid, one of the world’s best-selling computer games. Designed and built by a team of 10 experts led by London-based prosthetic sculptor Sophie de Oliveira Barata, the £60,000 carbon-fibre limb is part art project, part engineering marvel.

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