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2024

Новости за 18.04.2024

Hubble goes hunting for small main belt asteroids

Phys.org 

Like boulders, rocks, and pebbles scattered across a landscape, asteroids come in a wide range of sizes. Cataloging asteroids in space is tricky because they are faint and they don't stop to be photographed as they zip along their orbits around the sun.

First curved data link side-steps key 6G wireless challenge

Phys.org 

Next-generation wireless signals will no longer emanate indiscriminately from a base station as is the case now but will likely take the form of targeted directional beams. However, any physical interference—an object or a person passing nearby, for example—could interrupt the signal, posing a literal obstacle toward the implementation of ultrafast millimeter-wave and sub-terahertz wireless networks.

Dense network of seismometers reveals how the underground ruptures

Phys.org 

The idea that earthquakes release stress by a single strong quake along a single fault plane may need to be corrected. A recent study by researchers from the Karlsruhe Institute of Technology (KIT) with the participation of the GFZ German Research Centre for Geosciences and international partner institutions points out that it would be more accurate to speak of a zone with numerous fault planes, some of which are parallel.

Training of brain processes makes reading more efficient

Phys.org 

A team of researchers from the University of Cologne and the University of Würzburg have found in training studies that the distinction between known and unknown words can be trained and leads to more efficient reading. Recognizing words is necessary to understand the meaning of a text. When we read, we move our eyes very efficiently and quickly from word to word.



How insects control their wings: The mysterious mechanics of insect flight

Phys.org 

Many of us would love the superpower to fly, and for good reason: Flight offers a crucial evolutionary advantage. Flying enables an animal to travel large distances quickly, in search of food and new habitats, while expending far less energy than walking. Through flight, insects colonized the planet and fostered the massive diversification of flowering plants by acting as efficient pollinators. They also enabled the evolution of other creatures like reptiles, birds, and mammals by serving as ample food supply.

Discovery of new ancient giant snake in India

Phys.org 

A new ancient species of snake dubbed Vasuki Indicus, which lived around 47 million years ago in the state of Gujarat in India, may have been one of the largest snakes to have ever lived, suggests new research published in Scientific Reports. The new species, which reached an estimated length of between 11 and 15 meters, was part of the now extinct madtsoiidae snake family, but represented a distinct lineage that originated in India.

Data-driven music: Converting climate measurements into music

Phys.org 

A geo-environmental scientist from Japan has composed a string quartet using sonified climate data. The 6-minute-long composition—titled "String Quartet No. 1 "Polar Energy Budget"—is based on over 30 years of satellite-collected climate data from the Arctic and Antarctic and aims to garner attention on how climate is driven by the input and output of energy at the poles.

Scientists experimentally observe current-driven antiskyrmion sliding

Phys.org 

Prof. Zhang Ying's group from the Institute of Physics of the Chinese Academy of Sciences (CAS), in collaboration with domestic universities and the Los Alamos National Laboratory in the United States, has experimentally observed current-driven antiskyrmion sliding.

Amazonia's fire crises: Emergency fire bans insufficient, strategic action needed before next burning season

Phys.org 

In response to the escalating fire crises in the Amazon, a timely study has revealed alarming shortcomings in the emergency fire bans implemented by the Brazilian Government. Initially seen as a promising solution in 2019, these bans have consistently fallen short in subsequent years, revealing a pressing need for strategies that address the underlying causes of each type of fire.

Instinct for 'fight or flight' may be much older than we thought

Phys.org 

Evidence in lampreys for the presence of a rudimentary sympathetic nervous system, previously thought to be unique to jawed vertebrates, has been presented in Nature. The finding may prompt a rethink of the origins of the sympathetic nervous system, which operates without conscious thought and controls the fight or flight reaction.

Capturing DNA origami folding with a new dynamic model

Phys.org 

Most people are familiar with the DNA double-helix. Its twisted ladder shape forms because the long pieces of DNA that make up our genome are exactly complementary—every adenine paired to a thymine, and every cytosine paired to a guanine. Sequences of these four nucleotides hold the information needed to build the proteins in our bodies, but they also encode their own double-helical structure.

Researchers investigate three star-forming regions, identify hundreds young stellar objects

Phys.org 

Using data from various space telescopes and astronomical surveys, Armenian researchers have investigated three star-forming regions. The study identified hundreds of young stellar objects and provided important information regarding the stellar content of these regions. The new findings were presented in a paper published April 5 in the Astrophysics and Space Science journal.





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