The Universe gravitates so that normal matter and General Relativity alone can’t explain it. Here’s why dark matter beats modified gravity.
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Oct 19, 2022
Physicists Got a Quantum Computer to Work by Blasting It With the Fibonacci Sequence
Posted by Dan Breeden in categories: computing, quantum physics
An experiment involving a Fibonacci pattern of laser pulses apparently yielded a new state of matter.
Oct 19, 2022
2-D Nanotech Material for Computer Chips
Posted by Dan Breeden in categories: computing, nanotechnology
Two-dimensional material-based transistors are being extensively investigated for CMOS (complementary metal oxide semiconductor) technology extension; nevertheless, downscaling appears to be challenging owing to high metal-semiconductor contact resistance.
Two-dimensional (2D) nano-materials could be a replacement for conventional CMOS semiconductors for high-speed integrated circuits and very low power usage. CMOS is reaching the physical limits of about 1 nanometer circuits.
Lab performance of these devices has been found to meet the international roadmap for devices and systems (IRDS) requirements for several benchmark metrics.
Oct 19, 2022
Physicists confirm hitch in proton structure
Posted by Dan Breeden in category: physics
Nuclear physicists have confirmed that the current description of proton structure isn’t all smooth sailing. A new precision measurement of the proton’s electric polarizability performed at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility has revealed a bump in the data in probes of the proton’s structure.
Though widely thought to be a fluke when seen in earlier measurements, this new, more precise measurement has confirmed the presence of the anomaly and raises questions about its origin. The research has just been published in the journal Nature.
According to Ruonan Li, first author on the new paper and a graduate student at Temple University, measurements of the proton’s electric polarizability reveal how susceptible the proton is to deformation, or stretching, in an electric field. Like size or charge, the electric polarizability is a fundamental property of proton structure.
Oct 19, 2022
Neuromorphic computing system technology mimicking the human brain must overcome the limitation of excessive power consumption
Posted by Dan Breeden in categories: computing, neuroscience
which is characteristic of the existing von Neumann computing method. A high-performance, analog …
Oct 19, 2022
The Danger of Artificial Intelligence May Be Nuclear War Story
Posted by Dan Breeden in categories: existential risks, robotics/AI
Artificial Intelligence has the potential to cause nuclear war-like catastrophic events, a new study says.
Oct 19, 2022
Mechanical neural networks: Architected materials that learn behaviors
Posted by Dan Breeden in categories: materials, robotics/AI
This work studies how a lattice of tunable beams can learn desired behaviors and what factors affect mechanical learning.
Oct 19, 2022
Record-Breaking Gamma Ray Burst May Indicate Birth of a Black Hole
Posted by Dan Breeden in categories: cosmology, physics, robotics/AI
On Oct. 9, an unimaginably powerful influx of X-rays and gamma rays infiltrated our solar system. It was likely the result of a massive explosion that happened 2.4 billion light-years away from Earth, and it has left the science community stunned.
In the wake of the explosion, astrophysicists worldwide turned their telescopes toward the spectacular show, watching it unfold from a variety of cosmic vantage points — and as they vigilantly studied the event’s glimmering afterglow over the following week, they grew shocked by how utterly bright this gamma-ray burst seems to have been.
Eventually, the spectacle’s sheer intensity earned it a fitting (very millennial) name to accompany its robotic title of GRB221009A: B.O.A.T. — the “brightest of all time.”
Oct 19, 2022
Plutonium: Facts about the radioactive element
Posted by Dan Breeden in category: chemistry
Plutonium is the 94th element in the periodic table and one of the most dangerous elements on Earth. Here we explore Plutonium in more detail.