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Mar 21, 2024

Israeli researcher awarded IEEE medal, the Nobel Prize of engineering

Posted by in category: engineering

Prof. Hagit Messer-Yaron from Tel Aviv University (TAU) is the recipient of the 2024 Institute of Electrical and Electronics Engineers (IEEE) medal for Environmental and Safety Technology for outstanding accomplishments in the application of technology in the fields of interest of IEEE that improve the environment and/or public safety. The award consists of a bronze medal, certificate, and cash honorarium.

Mar 21, 2024

Neolithic boats excavated in the Mediterranean reveal advanced nautical technology

Posted by in category: futurism

More than 7,000 years ago, people navigated the Mediterranean Sea using technologically sophisticated boats, according to a study published March 20, 2024, in the open-access journal PLOS ONE by Juan F. Gibaja of the Spanish National Research Council, Barcelona and colleagues.

Many of the most important civilizations in Europe originated on the shores of the Mediterranean Sea. During the Neolithic, communities clearly traveled and traded across the water, as evidenced by watercraft in the and the presence of settlements on coasts and islands. In this study, Gibaja and colleagues provide new insights into the history of seafaring technology through analysis of canoes at the Neolithic lakeshore village of La Marmotta, near Rome, Italy.

Excavation at this site has recovered five canoes built from hollowed-out trees (dugout canoes) dating between 5,700 and 5,100 BC. Analysis of these boats reveals that they are built from four different types of wood, unusual among similar sites, and that they include advanced construction techniques such as transverse reinforcements.

Mar 21, 2024

Researchers discover tightest arrangement of bilayer alkali metals between graphene layers

Posted by in categories: materials, particle physics

For the past hundred years, it has been widely recognized through X-ray and electron diffraction measurements that graphene interlayers can only accommodate a single layer of alkali metal. Each layer being fully filled by single layer alkali metal atoms is considered the theoretical charging limit.

However, there have been no reports of studies directly observing the atomic arrangement of interlayer alkali metals and verifying whether graphene layers can only accommodate a single layer of alkali metal atoms or whether other techniques can achieve higher density or multiple layers of alkali metals.

The research team developed a technique to insert dense alkali metals between graphene layers. Utilizing a high-performance low-voltage (60 kV) , they have successfully observed the arrangement structure of alkali metal atoms between the graphene layers. The alkali metals are found densely packed in a two-layer structure in both bilayer graphene and in the surface layer graphite due to the flexible extension ability of their interlayer spacing.

Mar 21, 2024

First-of-Its-Kind ‘Quantum Tornado’ Achieves Record-Breaking Black Hole Mimicry

Posted by in categories: climatology, cosmology, quantum physics

A superfluid vortex controlled in a lab is helping physicists learn more about the behavior of black holes.

A whirlpool generated in helium cooled to just a fraction above absolute zero mimics the gravitational environment of these objects to such high precision that it’s giving unprecedented insight into how they drag and warp the space-time around them.

“Using superfluid helium has allowed us to study tiny surface waves in greater detail and accuracy than with our previous experiments in water,” explains physicist Patrik Švančara of the University of Nottingham in the UK, who led the research.

Mar 21, 2024

Benchmarking highly entangled states on a 60-atom analogue quantum simulator

Posted by in categories: particle physics, quantum physics

Fidelity benchmarking of an analogue quantum simulator reaches a high-entanglement regime where exact classical simulation of quantum systems becomes impractical, and enables a new method for evaluating the mixed-state entanglement of quantum devices.

Mar 21, 2024

Two ancient threads discovered in Milky Way galaxy named Shiva and Shakti

Posted by in categories: chemistry, space

Khyati Malhan of the Max Planck Institute for Astronomy (MPIA) in Heidelberg, Germany, who spearheaded the research, expressed astonishment at the ability to detect these ancient structures.

“The Milky Way has undergone profound changes since these stars were born. The fact that we can still recognize them as a group is truly amazing and a testament to the unprecedented data provided by Gaia,” Malhan stated.

The discovery was made possible through Gaia’s observations, which allowed researchers to determine the orbits, content, and composition of individual stars within the Milky Way. “Upon visualising the orbits of these stars, two new structures emerged, distinguished by their unique chemical composition. We named them Shakti and Shiva,” added Malhan.

Mar 21, 2024

Bioengineering edible mycelium to enhance nutritional value, color, and flavor

Posted by in categories: bioengineering, biological

In a recent study published in Nature Communications, researchers developed a modular synthetic biology toolkit for Aspergillus oryzae, an edible fungus used in fermented foods, protein production, and meat alternatives.

Study: Edible mycelium bioengineered for enhanced nutritional value and sensory appeal using a modular synthetic biology toolkit. Image Credit: Rattiya Thongdumhyu/Shutterstock.com.

Mar 21, 2024

3D-printed holographics can encode data using common plastic — keys and addresses up to 576 bits, with redundancy

Posted by in category: materials

A standard 3D printer and terahertz beams permit for storing data on a regular, 3D-printed piece of plastic— like cryptographic keys.

Mar 21, 2024

Brain Teaser: Use logical reasoning to decipher which of these trucks is in motion

Posted by in category: neuroscience

The brain teaser that asks people to figure out which of the three trucks is in motion was shared on Instagram’s Threads with the caption, “Can you solve it?”

Mar 21, 2024

Researchers achieve >99% photoluminescence quantum yield in metal nanoclusters

Posted by in category: quantum physics

A research team has achieved near-unity room-temperature photoluminescence quantum yield (PLQY) (>99%) in the near-infrared (NIR) emission of metal nanoclusters in solution. Their work is published in Science.