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Category: engineering – Page 96

Rolls-Royce’s new micro-reactor design could send humans to Mars

It is “designed to use an inherently safe and extremely robust fuel form.”

The future of deep space exploration is near. Rolls-Royce revealed a new image of a micro-reactor for space that it says is “designed to use an inherently safe and extremely robust fuel form.”

The iconic engineering firm recently tweeted the image alongside a caption. It is designing the nuclear fission system as part of an agreement it penned with the UK Space Agency in 2021.

Nuclear propulsion systems for space, which harness the energy produced during the splitting of atoms, have great potential for accelerating space travel and reducing transit times. This could be of particular importance when sending humans to Mars… More.

Rolls-Royce/Twitter.

Rolls-Royce revealed a new image of a micro-reactor for space that it says is “designed to use an inherently safe and extremely robust fuel form.”

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Dr. Lonnie Reid

Lonnie Reid is nationally recognized in turbomachinery for his knowledge of internal flow in advanced aerospace propulsion systems. He has a long history of integrating the theoretical and experimental elements of fluid dynamics work to expand the database of compressor and fan design. He has not only demonstrated excellent leadership skills in several positions, including as chief of the Internal Fluid Mechanics Division, but has been influential in recruiting and mentoring the next generation of scientists and engineers.

Lonnie Reid was born on September 5, 1935, in Gastonia, North Carolina. After serving in the U.S. Army, he earned a mechanical engineering degree from Tennessee State University. He joined the NASA Lewis Research Center as a research engineer shortly after graduating in 1961 and spent the next 20 years as both a researcher and manager in the Compressor Section of the Fluid Systems Components Division.

In the early 1960s the group focused on improving the performance of high-speed turbopumps that pumped cryogenic propellants in space vehicles. The pumping of liquid hydrogen in near-boiling conditions, referred to as “cavitation,” was a particular concern. The fluids systems researchers improved pump designs and demonstrated the ability to pump hydrogen in cavitating conditions. These were key contributions to the success of the Centaur and Saturn upper-stage rockets.

Unconventional superconductivity found in kagome metal

Physicists using advanced muon spin spectroscopy at Paul Scherrer Institute PSI found the missing link between their recent breakthrough in a kagome metal and unconventional superconductivity. The team uncovered an unconventional superconductivity that can be tuned with pressure, giving exciting potential for engineering quantum materials.

A year ago, a group of physicists led by PSI detected evidence of an unusual collective electron behavior in a kagome metal, known as time-reversal symmetry-breaking charge order—a discovery that was published in Nature.

Although this type of behavior can hint towards the highly desirable trait of , actual evidence that the material exhibited unconventional superconductivity was lacking. Now, in a new study published in Nature Communications, the team have provided key evidence to make the link between the unusual charge order they observed and unconventional superconductivity.

Researchers develop elastic material that is impervious to gases and liquids

An international team of researchers has developed a technique that uses liquid metal to create an elastic material that is impervious to both gases and liquids. Applications for the material include use as packaging for high-value technologies that require protection from gases, such as flexible batteries.

“This is an important step because there has long been a trade-off between elasticity and being impervious to gases,” says Michael Dickey, co-corresponding author of a paper on the work and the Camille & Henry Dreyfus Professor of Chemical and Biomolecular Engineering at North Carolina State University.

“Basically, things that were good at keeping gases out tended to be hard and stiff. And things that offered elasticity allowed gases to seep through. We’ve come up with something that offers the desired elasticity while keeping gases out.”

Scientists report on a quasiparticle that can transfer heat under electrical control

Scientists have found the secret behind a property of solid materials known as ferroelectrics, showing that quasiparticles moving in wave-like patterns among vibrating atoms carry enough heat to turn the material into a thermal switch when an electrical field is applied externally.

A key finding of the study is that this control of thermal conductivity is attributable to the structure of the material rather than any random collisions among atoms. Specifically, the researchers describe quasiparticles called ferrons whose polarization changes as they “wiggle” in between vibrating atoms—and it’s that ordered wiggling and polarization, receptive to the externally applied , that dictates the material’s ability to transfer the heat at a different rate.

“We figured out that this change in position of these atoms, and the change of the nature of the vibrations, must carry heat, and therefore the external field which changes this vibration must affect the thermal conductivity,” said senior author Joseph Heremans, professor of mechanical and aerospace engineering, and engineering, and physics at The Ohio State University.

Self-cooling tent runs using just water and sunshine

For many avid outdoorspeople, summertime and camping go hand in hand. But as climate change continues to drive summer temperatures higher, outdoor recreation could become less relaxing—and cooling technologies like fans and portable air conditioners require electricity that is seldom available at the average campsite.

Seeing an unmet need, UConn researcher Al Kasani, working with Technology Commercialization Services (TCS) and the university’s Center for Clean Energy Engineering (C2E2), has developed a new off-grid technology that allows a ’s internal to cool up to 20°F below the ambient temperature.

The tent requires just one external element to function, one that is typically found in abundance around campsites: water. A single gallon of water can power the tent’s technology for up to 24 hours.

The Death of Death during the coming #DLD Tel Aviv Innovation Festival in Israel. Top news at #i24

José Cordeiro, PhD, talking about his international bestseller “The Death of Death” during the coming DLD Tel Aviv Innovation Festival in Israel. Top news at i24 news discussing about aging as the “mother” of all chronic diseases!

José Cordeiro is an international fellow of the World Academy of Art and Science, vicechair of HumanityPlus, director of The Millennium Project, founding faculty at Singularity University in NASA Research Park, Silicon Valley, and former director of the Club of Rome (Venezuela Chapter), the World Transhumanist Association and the Extropy Institute.

Has also been invited faculty at the Institute of Developing Economies IDE – JETRO in Tokyo, Japan, the Moscow Institute of Physics and Technology (MIPT) and the Higher School of Economics (HSE) in Russia.

Founder in #TransVision Madrid 2021: engineer, economist, futurist, visionary, transhumanist, singularitarian, immortalist. MIT engineer working to transcend biology and travel to Mars and beyond.

José studied engineering at the Massachusetts Institute of Technology (MIT) in Cambridge, MA, economics at Georgetown University in Washington, DC, management at INSEAD in Fontainebleau, France, and science at Universidad Simon Bolivar in Caracas, Venezuela.

He is a leading expert on technological change, future trends and economic forecasting. He has published more than 10 books in 5 languages, including his current bestseller “La muerte de la muerte” in Spanish, Portuguese, French, Russian, Chinese and Turkish.

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Margaret Hamilton: Pioneering Software Engineer Who Saved the Moon Landing

We might all have been in a situation where we had to put our trust in our work to hold up and do what it needed to do, but Margaret Hamilton’s work was particularly important — it was responsible for putting Neil Armstrong and Buzz Aldrin on the moon in July 1969.

When warning lights started going off in the middle of the Eagle module’s descent toward the lunar surface, NASA faced a tough decision: continue with the landing or abort.

Margaret offered the world a great deal with her prowess, and I am glad Obama recognized her before her death, thank God she’s still with us today. #GodBlessHer

When Margaret Hamilton was put in charge of writing the software that would fly the Apollo astronauts to the moon, no one had ever done anything like this before, so she invented software engineering to get it done.

Researchers derive a unified topological speed limit for the evolution of physical states

Physical systems evolve at a particular speed, which depends on various factors including the system’s so-called topological structure (i.e., spatial properties that are preserved over time despite any physical changes that occur). Existing methods for determining the speed at which physical systems change over time, however, do not account for these structural properties.

Two researchers at Keio University in Japan have recently derived a speed limit for the evolution of physical states that also accounts for the topological structure of a system and of its underlying dynamics. This speed limit, outlined in a paper published in Physical Review Letters, could have numerous valuable applications for the study and development of different , including quantum technologies.

“Figuring out how fast a system state can change is a central topic in classical and , which has attracted the great interest of scientists,” Tan Van Vu and Keiji Saito, the researchers who carried out the study, told Phys.org. “Understanding the mechanism of controlling time is relevant to engineering fast devices such as quantum computers.”