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Nov 8, 2022
Solar storm smashes hole in Earth’s magnetosphere, triggering extremely rare pink auroras
Posted by Quinn Sena in category: particle physics
On Nov. 3 a solar storm caused a temporary crack in Earth’s magnetic field. The resulting hole enabled energetic particles to penetrate deep into the planet’s atmosphere and set off extremely rare pink auroras.
Nov 8, 2022
A room-temperature polarization-sensitive CMOS terahertz camera based on quantum-dot-enhanced terahertz-to-visible photon upconversion
Posted by Kelvin Dafiaghor in categories: electronics, quantum physics
A terahertz camera based on an upconversion mechanism to the visible range can image both THz polarization state and field strength.
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Nov 8, 2022
Team creates crystals that generate electricity from heat
Posted by Josh Seeherman in categories: energy, health
To convert heat into electricity, easily accessible materials from harmless raw materials open up new perspectives in the development of safe and inexpensive so-called “thermoelectric materials.” A synthetic copper mineral acquires a complex structure and microstructure through simple changes in its composition, thereby laying the foundation for the desired properties, according to a study published in the journal Angewandte Chemie.
The novel synthetic material is composed of copper, manganese, germanium, and sulfur, and it is produced in a rather simple process, explains materials scientist Emmanuel Guilmeau, CNRS researcher at CRISMAT laboratory, Caen, France, who is the corresponding author of the study. “The powders are simply mechanically alloyed by ball-milling to form a precrystallized phase, which is then densified by 600 degrees Celsius. This process can be easily scaled up,” he says.
Thermoelectric materials convert heat to electricity. This is especially useful in industrial processes where waste heat is reused as valuable electric power. The converse approach is the cooling of electronic parts, for example, in smartphones or cars. Materials used in this kind of applications have to be not only efficient, but also inexpensive and, above all, safe for health.
Nov 8, 2022
A Bold Solution To a Quantum Mystery: Does a “Game” Between Observer and Nature Define Existence?
Posted by Paul Battista in categories: entertainment, particle physics, quantum physics
A team of scientists from the University of Sciences and Technology of China has proposed a bold solution for the “measurement problem” in quantum mechanics, suggesting the eventual outcome for states of existence is determined by a “game” between the observer and nature.
For over a century, the quantum realm has imposed an abundance of bizarre obstacles along the road to understanding universal existence.
In the microscopic world of atoms and subatomic particles, nature demonstrates unparalleled strangeness, becoming unpredictable and operating in contrast to how it behaves at the macroscopic scale defined by classical physics.
Nov 8, 2022
Two NASA Boeing Projects Expose the Failings of the Relationship
Posted by 21st Century Tech Blog in category: space
With cost overruns and milestones not met, it is a wonder that NASA and Boeing aren’t headed for a divorce.
Agency budgetary report shows tens of billions spent on Boeing contracts that have yet to deliver. Much cheaper alternatives exist.
Nov 8, 2022
Study Offers New Insights Into Genetic Mutations in Autism Disorders and Points to Possible Treatments
Posted by Genevieve Klien in categories: biotech/medical, genetics, neuroscience
Summary: Mutations of the PTEN gene cause neurons to grow to twice the size and form four times the number of synaptic connections to other neurons as a normal neuron. Removing the RAPTOR gene, an essential gene in the mTORC1 signaling pathway, prevents the neuronal and synaptic overgrowth associated with PTEN mutations. Using Rapamycin to inhibit mTORC1 rescues all the changes in neuronal overgrowth.
Source: the geisel school of medicine at dartmouth.
Findings from a new study published in Cell Reports, involving a collaborative effort between researchers at the Luikart Laboratory at Dartmouth’s Geisel School of Medicine and the Weston Laboratory at the University of Vermont, are providing further insight into the neurobiological basis of autism spectrum disorders (ASD) and pointing to possible treatments.
Nov 8, 2022
‘World’s most advanced’ robot will have working legs within a year
Posted by Genevieve Klien in category: robotics/AI
With her eerily realistic facial expressions and movements, Ameca has been billed as the world’s most advanced humanoid robot.
But if that wasn’t impressive enough, soon she could be walking around too.
Continue reading “‘World’s most advanced’ robot will have working legs within a year” »
Nov 8, 2022
This Single Blood Test Can Detect Multiple Kinds of Cancer Early
Posted by Genevieve Klien in category: biotech/medical
Detecting cancer early before it spreads throughout the body can be lifesaving. This is why doctors recommend regular screening for several common cancer types, using a variety of methods.
Colonoscopies, for example, screen for colon cancer, while mammograms screen for breast cancer.
Continue reading “This Single Blood Test Can Detect Multiple Kinds of Cancer Early” »