This eye-catching ebike offers 750 watts of power, about 500 watt-hours of battery, a long list of neat gadgetry and an impossible-looking pair of hubless wheels you can poke your arm right through. We’d urge caution when it comes to buying one, though.
The team’s findings have been published in Nature: Scientific Reports: “Transition delay using biomimetic fish scale arrays,” and in the Journal of Experimental Biology: “Streak formation in flow over biomimetic fish scale arrays.”
Reducing drag means faster aircraft speeds and less fuel consumption—an important area of study for aerodynamicists such as Professor Bruecker, City’s Royal Academy of Engineering Research Chair in Nature-Inspired Sensing and Flow Control for Sustainable Transport, and City’s Sir Richard Oliver BAE Systems Chair for Aeronautical Engineering.
Through their biomimetic study, Professor Bruecker’s team has discovered that the fish-scale array produces a zig-zag motion of fluid in overlapping regions of the surface of the fish, which in turn causes periodic velocity modulation and a streaky flow that can eliminate Tollmien-Schlichting wave induced transition to reduce skin friction drag by more than 25 percent.
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As superconducting qubit circuits become more complex, addressing a large array of qubits becomes a challenging engineering problem. Dense arrays of qubits benefit from, and may require, access via the third dimension to alleviate interconnect crowding. Through-silicon vias (TSVs) represent a promising approach to three-dimensional (3D) integration in superconducting qubit arrays—provided they are compact enough to support densely-packed qubit systems without compromising qubit performance or low-loss signal and control routing. In this work, we demonstrate the integration of superconducting, high-aspect ratio TSVs—10 μm wide by 20 μm long by 200 μm deep—with superconducting qubits. We utilize TSVs for baseband control and high-fidelity microwave readout of qubits using a two-chip, bump-bonded architecture. We also validate the fabrication of qubits directly upon the surface of a TSV-integrated chip. These key 3D-integration milestones pave the way for the control and readout of high-density superconducting qubit arrays using superconducting TSVs.
They can be made up of just two surfaces, bouncing the wave between them, but the more surfaces that are added, the more resonance is achieved. The ultimate is therefore to create a perfect sphere, creating surfaces in every direction within a three-dimensional object. At that point, the creation of a resonator moves from being a physics question to one of engineering, since even a stem holding the sphere can create distortion that reduces the impact of the resonator.
According to the Technion, the world’s first micro-resonator was demonstrated in the 1970s by Arthur Ashkin, winner of the 2018 Nobel Prize in Physics, who presented a floating resonator. Yet, despite the success of his innovation, the research direction was soon abandoned.
Now graduate student Jacob Kher-Alden, under the supervision of Prof. Tal Carmon, has built upon Ashkin’s work, creating a floating resonator which can exhibit resonant enhancement by ten million circulations of light, compared to about 300 circulations in Ashkin’s resonator.
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BT and Toshiba have deployed an ‘unhackable’ quantum network that uses streams of photons to encrypt sensitive communications.
A trial of the network, which is the first of its kind in the UK, will see data transmitted between two engineering facilities in Bristol using encryption keys streamed as ‘encoded’ particles of light.
Technion researchers have developed accurate radiation sources that are expected to lead to breakthroughs in medical imaging and other areas. They have developed precise radiation sources that may replace the expensive and cumbersome facilities currently used for such tasks. The suggested apparatus produces controlled radiation with a narrow spectrum that can be tuned with high resolution, at a relatively low energy investment. The findings are likely to lead to breakthroughs in a variety of fields, including the analysis of chemicals and biological materials, medical imaging, X-ray equipment for security screening, and other uses of accurate X-ray sources.
Published in the journal Nature Photonics, the study was led by Professor Ido Kaminer and his master’s student Michael Shentcis as part of a collaboration with several research institutes at the Technion: the Andrew and Erna Viterbi Faculty of Electrical Engineering, the Solid State Institute, the Russell Berrie Nanotechnology Institute (RBNI), and the Helen Diller Center for Quantum Science, Matter and Engineering.
The researchers’ paper shows an experimental observation that provides the first proof-of-concept for theoretical models developed over the last decade in a series of constitutive articles. The first article on the subject also appeared in Nature Photonics. Written by Prof. Kaminer during his postdoc at MIT, under the supervision of Prof. Marin Soljacic and Prof. John Joannopoulos, that paper presented theoretically how two-dimensional materials can create X-rays. According to Prof. Kaminer, “that article marked the beginning of a journey towards radiation sources based on the unique physics of two-dimensional materials and their various combinations—heterostructures. We have built on the theoretical breakthrough from that article to develop a series of follow-up articles, and now, we are excited to announce the first experimental observation on the creation of X-ray radiation from such materials, while precisely controlling the radiation parameters.”
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Latest wing testing and the evolution of our aerodynamic control at speed with the #JetSuit never stops at Gravity. Here with the awesome Benjamin Kenobi chasing with his Inspire drone🤘
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TED 2017 talk: http://go.ted.com/richardbrowning
BACKGROUND
With a rich family history in Aviation, former Oil Trader & Royal Marines Reservist, Richard Browning, founded pioneering Aeronautical Innovation company, Gravity Industries in March 2017 to launch human flight into an entirely new era.
The Gravity #JetSuit uses over 1000bhp of Jet Engine power combined with natural human balance to deliver the most intense and enthralling spectacle, often likened to the real life Ironman.
Gravity has to date been experienced by over a billion people globally and covered by virtually every media platform. The Gravity Team, based in the UK, have delivered over 100 flight & Speaking events across 30 countries including 5 TED talks.
“The team and I are delivering on the vision to build Gravity into a world class aeronautical engineering business, challenge perceived boundaries in human aviation, and inspire a generation to dare ask ‘what if…”
Based on focused electron beam-induced processing (FEBID) techniques, the work could allow production of 2-D/3D complex nanostructures and functional nanodevices useful in quantum communications, sensing, and other applications. For oxygen-containing materials such as graphene oxide, etching can be done without introducing outside materials, using oxygen from the substrate.
“By timing and tuning the energy of the electron beam, we can activate interaction of the beam with oxygen in the graphene oxide to do etching, or interaction with hydrocarbons on the surface to create carbon deposition,” said Andrei Fedorov, professor and Rae S. and Frank H. Neely Chair in the George W. Woodruff School of Mechanical Engineering at the Georgia Institute of Technology. “With atomic-scale control, we can produce complicated patterns using direct write-remove processes. Quantum systems require precise control on an atomic scale, and this could enable a host of potential applications.”
Gryphon provides digital engineering, analytics, cyber and cloud solutions to U.S. security organizations. It was awarded a $14million DARPA task order to support the development and demonstration of an uranium-based Nuclear Thermal Propulsion (NTP) System.
The system is a part of the Demonstration Rocket for Agile Cislunar Operations (DRACO) program and will enable the U.S. military to operate spacecraft in cislunar space, Gryphon said. The cislunar space is the region outside the Earth’s atmosphere and just beyond the Moon’s orbit.
“A successfully demonstrated NTP system will provide a leap-ahead in space propulsion capability, allowing agile and rapid transit over vast distances as compared to present propulsion approaches,” said Gryphon’s Chief Engineer Dr. Tabitha Dodson.
“Gryphon is committed to providing high-end technical solutions to our nation’s most critical national security challenges,” said P.J. Braden, CEO of Gryphon. “We are proud to support DRACO and the development and demonstration of NTP, a significant technological advancement in efforts to achieve cislunar space awareness.”
Berlin, 30 September 2020. — The U.S. Defense Advanced Research Projects Agency (DARPA) tasked DC-based Gryphon Technologies to develop a nuclear thermal propulsion system, the firm announced yesterday.
Tesla is now officially getting into the mining business with a lithium claim on 10,000 acres in Nevada.
At the Battery Day event yesterday, as part of its entire new battery supply strategy, Tesla announced that it is developing its own lithium processing method.
Drew Baglino, SVP of engineering at Tesla, said:
