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Feb 26, 2022

Millions of Sunflowers Soak Up Nuclear Radiation in Fukushima

Posted by in category: futurism

Circa 2011 😀 😍


All three men’s leg and trunk muscle mass grew, and two were eventually able to control some muscle function even without stimulation.

Feb 26, 2022

Gas prices continue to skyrocket, but Russian invasion of Ukraine only 1 factor

Posted by in category: transportation

MANSFIELD — Gas prices at the pump across Ohio have been on the rise for a while, but Russia’s invasion this week — and other more natural factors — could.


MOUNT VERNON — Gas prices at the pump across Ohio have been on the rise for a while, but Russia’s invasion this week — and other more natural factors — could make those prices rise even more.

The American Automobile Association reported Friday that Ohio’s average price at the pump for regular gas rose $0.01 from Thursday. It’s up $0.11 from last week and $0.27 from a month ago.

Continue reading “Gas prices continue to skyrocket, but Russian invasion of Ukraine only 1 factor” »

Feb 26, 2022

Webb turns those 18 separate star images into a single unified star. Next comes even better focus

Posted by in categories: futurism, space

It’s coming together! Engineers for the James Webb Space Telescope have now completed two more phases of the seven-step, three-month-long mirror alignment process. This week, the team made more adjustments to the mirror segments along with updating the alignment of its secondary mirror. These refinements allowed for all 18 mirror segments to work together — for the first time — to produce one unified image.

As you can see in the image above, this view of the star HD 84,406 shows one image instead of the 18 views – one from each segment – that we saw earlier this week. NASA engineers say that after future alignment steps, the image will be even sharper.

“We still have work to do, but we are increasingly pleased with the results we’re seeing,” said Lee Feinberg, optical telescope element manager for Webb, in a blog post. “Years of planning and testing are paying dividends, and the team could not be more excited to see what the next few weeks and months bring.”

Feb 26, 2022

Decentralized Manufacturing of Advanced Therapies

Posted by in categories: bioprinting, biotech/medical, economics, robotics/AI

Medcalf: Because you’re moving away from the economics of scale to closer to the clinic, the batches are smaller and some of the traditional paradigms for quality assurance, such as proof of sterility, are harder to arrange. Thus, you need to have a manufacturing system that includes quality assurance within the system itself.

Automation is often presented as a way to remove the single largest source of infective risk, i.e. the human operator. For example, the self-sterilizing reusable units being developed at the University of Osaka under Professor Masahiro Kino-oka allow small-scale production with a high degree of confidence in the aseptic management of the environment.

Another challenge is defining a product that has variable characteristics. The main reason for decentralizing is to allow customization to a patient, which means you need to have a hierarchy of levels of specification. For example, with bioprinting, which also produces a customized product, you need to define bulk properties, but you also need to set constraints around how it’s anchored or implanted into the patient.

Feb 25, 2022

Skyfire unveils SF2 drone for public safety and critical missions

Posted by in category: drones

Specialized Atlanta-based UAV consulting firm Skyfire is itself launching into aerial action with the release of its SF2 drone, which is designed and manufactured specifically for public safety and critical sector operators.

Skyfire’s entry into specialized drone manufacturing with the SF2 was motivated by the understanding, insight, and feedback it gathered in its work with hundreds of US public safety and critical sector clients as they navigated the Federal Aviation’s certification of authorization process. Relying on that information flow from diverse partners, Skyfire decided to provide solutions to shortcomings and close operational gaps it was hearing about.

Feb 25, 2022

Visualization of the origin of magnetic forces

Posted by in categories: computing, particle physics, space

The joint development team of Professor Shibata (the University of Tokyo), JEOL Ltd. and Monash University succeeded in directly observing an atomic magnetic field, the origin of magnets (magnetic force), for the first time in the world. The observation was conducted using the newly developed Magnetic-field-free Atomic-Resolution STEM (MARS). This team had already succeeded in observing the electric field inside atoms for the first time in 2012. However, since the magnetic fields in atoms are extremely weak compared with electric fields, the technology to observe the magnetic fields had been unexplored since the development of electron microscopes. This is an epoch-making achievement that will rewrite the history of microscope development.

Electron microscopes have the highest spatial resolution among all currently used microscopes. However, in order to achieve ultra-high resolution so that atoms can be observed directly, we have to observe the sample by placing it in an extremely strong lens . Therefore, atomic observation of magnetic materials that are strongly affected by the lens magnetic field such as magnets and steels had been impossible for many years. For this , the team succeeded in developing a lens that has a completely new structure in 2019. Using this new lens, the team realized atomic observation of magnetic materials, which is not affected by the lens magnetic field. The team’s next goal was to observe the magnetic fields of atoms, which are the origin of magnets (), and they continued technological to achieve the goal.

This time, the joint development team took on the challenge of observing the magnetic fields of iron (Fe) atoms in a hematite crystal (α-Fe2O3) by loading MARS with a newly developed high-sensitivity high-speed detector, and further using computer image processing technology. To observe the magnetic fields, they used the Differential Phase Contrast (DPC) method at atomic resolution, which is an ultrahigh-resolution local electromagnetic field measurement method using a scanning transmission electron microscope (STEM), developed by Professor Shibata et al. The results directly demonstrated that iron atoms themselves are small magnets (atomic magnet). The results also clarified the origin of (antiferromagnetism) exhibited by hematite at the atomic level.

Feb 25, 2022

Physicists test real quantum theory in an optical quantum network

Posted by in category: quantum physics

Quantum theory was originally formulated using complex numbers. Nonetheless, when replying to a letter by Hendrik Lorenz, Erwin Schrödinger (one of its founding fathers), wrote: “Using complex numbers in quantum theory is unpleasant and should be objected to. The wave function is surely fundamentally a real function.”

In recent years, scientists successfully ruled out any local hidden variable explanation of quantum using Bell tests. Later, such tests were generalized to a network with multiple independent hidden variables. In such a quantum network, quantum theory with only real numbers, or “real quantum theory,” and standard quantum theory make quantitatively different predictions in some scenarios, enabling experimental tests of the validity of real quantum theory.

Researchers at Southern University of Science and Technology in China, the Austrian Academy of Sciences and other institutes worldwide have recently adapted one of these tests so that they could be implemented in state-of-the-art photonic systems. Their paper, published in Physical Review Letters, experimentally demonstrates the existence of quantum correlations in an optical network that cannot be explained by real quantum theory.

Feb 25, 2022

New model may improve Bay Area seismic hazard maps

Posted by in categories: chemistry, mapping

The Santa Cruz Mountains define the geography of the Bay Area south of San Francisco, protecting the peninsula from the Pacific Ocean’s cold marine layer and forming the region’s notorious microclimates. The range also represents the perils of living in Silicon Valley: earthquakes along the San Andreas fault.

In bursts that last seconds to minutes, earthquakes have moved the region’s surface meters at a time. But researchers have never been able to reconcile the quick release of the Earth’s stress and the bending of the Earth’s crust over years with the formation of mountain ranges over millions of years. Now, by combining geological, geophysical, geochemical and , geologists have created a 3D tectonic model that resolves these timescales.

The research, which appears in Science Advances Feb. 25, reveals that more mountain building happens in the period between along the San Andreas Fault, rather than during the quakes themselves. The findings may be used to improve local seismic hazard maps.

Feb 25, 2022

A new, inexpensive catalyst speeds the production of oxygen from water

Posted by in categories: chemistry, energy, transportation

An electrochemical reaction that splits apart water molecules to produce oxygen is at the heart of multiple approaches aiming to produce alternative fuels for transportation. But this reaction has to be facilitated by a catalyst material, and today’s versions require the use of rare and expensive elements such as iridium, limiting the potential of such fuel production.

Now, researchers at MIT and elsewhere have developed an entirely new type of catalyst material, called a metal hydroxide-organic framework (MHOF), which is made of inexpensive and abundant components. The family of materials allows engineers to precisely tune the ’s structure and composition to the needs of a particular chemical process, and it can then match or exceed the performance of conventional, more expensive catalysts.

The findings are described today in the journal Nature Materials, in a paper by MIT postdoc Shuai Yuan, graduate student Jiayu Peng, Professor Yang Shao-Horn, Professor Yuriy RomĂĄn-Leshkov, and nine others.

Feb 25, 2022

New simulations refine axion mass, refocusing dark matter search

Posted by in categories: cosmology, physics, supercomputing

Physicists searching—unsuccessfully—for today’s most favored candidate for dark matter, the axion, have been looking in the wrong place, according to a new supercomputer simulation of how axions were produced shortly after the Big Bang 13.6 billion years ago.

Using new calculational techniques and one of the world’s largest computers, Benjamin Safdi, assistant professor of physics at the University of California, Berkeley; Malte Buschmann, a postdoctoral research associate at Princeton University; and colleagues at MIT and Lawrence Berkeley National Laboratory simulated the era when axions would have been produced, approximately a billionth of a billionth of a billionth of a second after the universe came into existence and after the epoch of cosmic inflation.

The at Berkeley Lab’s National Research Scientific Computing Center (NERSC) found the ’s to be more than twice as big as theorists and experimenters have thought: between 40 and 180 microelectron volts (micro-eV, or ÎŒeV), or about one 10-billionth the mass of the electron. There are indications, Safdi said, that the mass is close to 65 ÎŒeV. Since physicists began looking for the axion 40 years ago, estimates of the mass have ranged widely, from a few ÎŒeV to 500 ÎŒeV.