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May 12, 2020

Stretchy cement makes buildings “immune to earthquakes”

Posted by in category: materials

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Researchers at the University of British Columbia have developed a form of concrete that is able to stretch without breaking, making it better able to resist the kind of forces produced by earth movements.

May 12, 2020

VTOL Takes Off

Posted by in categories: futurism, robotics/AI

Next-generation VTOL concepts are rising to meet the future needs of a modern-day battlefield.

Vertical take-off and landing (VTOL) concepts for unmanned aerial systems (UAS) certainly aren’t new. Their reconnaissance and intelligence-gathering roles date back to the 1950s, and there’s been a gradual path toward technological advancements in the decades since.

May 12, 2020

Liquid Mercury vortex in a magnetic field

Posted by in category: space

#Roobert33 In this experiment it’s noted that one half of an aluminum anodized copper globe is connected to an electrical wire in a DC current pole. At the center of the container there is an electrically isolated brass bolt from the container and connected to another pole of the DC current. At the base of the wooden support there is a large loudspeaker magnet that generates a magnetic attraction. Inside the container liquid mercury is poured in a weight of just over 1 Kg. When current flows through the two conductors, it generates a strong magnetic field that supports the system. This favorable condition rotates the liquid mercury as it’s an electric conductive metal. This experiment is known as the “Lorentz Force”. The operating voltage is 2V DC controlled by a DC inverter. The speed of rotation of mercury depends on the voltage being given. Increasing the tension the mercury takes off outside the bowl. *The system doesn’t work in alternating current. https://www.youtube.com/watch?v=au4hbUm4mMo

https://www.youtube.com/channel/UCrgd8qJ7CE97PSaPJySR6wA

May 12, 2020

‘Milestone’ Evidence for Anyons, a Third Kingdom of Particles

Posted by in category: particle physics

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Anyons don’t fit into either of the two known particle kingdoms. To find them, physicists had to erase the third dimension.

May 12, 2020

The Corps wants vertical take-off capability for its RQ-21 Blackjack drone

Posted by in category: drones

A new VTOL capability for the Blackjack drone will scrap the launcher and make the system more expeditionary.

May 12, 2020

Camcopter VTOL UAV Fully Integrated to French Navy LHD ‘Dixmude’

Posted by in category: military

The French Armament General Directorate (DGA) announces that the Camcopter S100 VTOL UAV is now fully integrated with French Navy Mistral-class LHD Dixmude, stressing that for the first time in Europe, a rotary wing UAV is fully operational and connected to the combat system of a warship.

May 12, 2020

Oak Ridge National Laboratory is developing a 3D printed nuclear reactor core

Posted by in categories: 3D printing, nuclear energy

Researchers at the US Department of Energy (DOE)’s Oak Ridge National Laboratory (ORNL) are developing a nuclear reactor core using 3D printing.

As part of its Transformational Challenge Reactor (TCR) Demonstration Program, which aims to build an additively manufactured microreactor, ORNL has refined its design of the reactor core, while also scaling up the additive manufacturing process necessary to build it. Additionally, the researchers have established qualification methods to confirm the consistency and reliability of the 3D printed components used in creating the core.

“The nuclear industry is still constrained in thinking about the way we design, build and deploy nuclear energy technology,” comments ORNL Director Thomas Zacharia.

May 12, 2020

A Giant Piece of a Chinese Rocket Just Smashed Down to Earth in an Uncontrolled Fall

Posted by in categories: military, space

The remains of a giant segment of a Chinese rocket crash-landed in the Atlantic Ocean this week, representing the most significant uncontrolled descent of a piece of human-made space debris in decades.

The core stage of a Chinese Long March 5B (CZ–5B) rocket, which was successfully launched on May 5, spent several days in orbit as part of its mission, before re-entering Earth’s atmosphere and falling to Earth, splashing down in ocean waters off the west coast of Mauritania in northwest Africa.

The descent, which was eventually confirmed by the 18th Space Control Squadron, a unit of the US Air Force, was notable not just for its huge mass, but also for the extent of the window of uncontrolled descent, which had space-object trackers guessing just where and when the out-of-control rocket would eventually land.

May 12, 2020

Error-transparent operations on a logical qubit protected by quantum error correction

Posted by in category: quantum physics

Universal quantum computation1 is striking for its unprecedented capability in processing information, but its scalability is challenging in practice because of the inevitable environment noise. Although quantum error correction (QEC) techniques2,3,4,5,6,7,8 have been developed to protect stored quantum information from leading orders of error, the noise-resilient processing of the QEC-protected quantum information is highly demanded but remains elusive9. Here, we demonstrate phase gate operations on a logical qubit encoded in a bosonic oscillator in an error-transparent (ET) manner. Inspired by refs. 10,11, the ET gates are extended to the bosonic code and are able to tolerate errors on the logical qubit during gate operations, regardless of the random occurrence time of the error. With precisely designed gate Hamiltonians through photon-number-resolved a.c. Stark shifts, the ET condition is fulfilled experimentally. We verify that the ET gates outperform the non-ET gates with a substantial improvement of gate fidelity after an occurrence of the single-photon-loss error. Our ET gates in superconducting quantum circuits can be readily extended to multiple encoded qubits and a universal gate set is within reach, holding the potential for reliable quantum information processing.

May 12, 2020

“Quantum radar” uses entangled photons to detect objects

Posted by in categories: computing, internet, particle physics, quantum physics

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The weird world of quantum physics is being harnessed for some fascinating use cases. In the latest example, physicists have developed and demonstrated a “quantum radar” prototype that uses the quantum entanglement phenomenon to detect objects, a system which could eventually outperform conventional radar in some circumstances.

Quantum entanglement describes the bizarre state where two particles can become linked so tightly that they seem to communicate instantly, no matter how far apart they are. Measuring the state of one particle will instantly change the state of the other, hypothetically even if it’s on the other side of the universe. That implies that the information is moving faster than the speed of light, which is thought to be impossible – and yet, it’s clearly and measurably happening. The phenomenon even unnerved Einstein himself, who famously described it as “spooky action at a distance.”

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