Other Sciences News

Scientists Discover New Property of Light

Kharintsev et al. found that photons can obtain substantial momentum, similar to that of electrons in solid materials, when confined to nanometer-scale spaces in silicon. Image credit: Kharintsev et al.
May 7, 2024 by News Staff

A team of physicists and chemists has discovered a previously unknown way in which light interacts with matter, a finding that could lead to improved solar power systems, light-emitting diodes, semiconductor lasers and other technological advancements. Kharintsev et al. found that photons can obtain substantial momentum, similar to that of electrons in solid materials, when confined to nanometer-scale spaces in silicon. Image credit: Kharintsev et...

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Collins et al. estimated flow through 3 million river segments, identifying locations around the world marked by intense human water use, including parts of the Colorado, Amazon, Orange, and Murray-Darling river basins, shown as gray here. Image credit: NASA.

New Study Provides Estimates of How Much Water Courses through Earth’s Rivers

Apr 30, 2024 by News Staff

Accurate assessment of global river flows and stores is critical for informing water management practices, but current estimates of global river flows...

Earth’s magnetic field lines. Image credit: NASA’s Goddard Space Flight Center.

Earliest Evidence of Earth’s Magnetic Field Found in Greenland

Apr 25, 2024 by News Staff

Recovering ancient records of Earth’s magnetic field is challenging because the magnetization in rocks is often reset by heating during tectonic burial...

Preparation of goldene. Image credit: Kashiwaya et al., doi: 10.1038/s44160-024-00518-4.

Scientists Create Single-Atom-Thick Gold: Goldene

Apr 23, 2024 by News Staff

Goldene in the form of gold monolayer sheets has been prepared by etching away titanium carbide (Ti3C2) slabs from titanium gold carbide (Ti3AuC2). Preparation...

A Homo heidelbergensis, a Neanderthal and a Cro-Magnon. Image credit: SINC / José Antonio Peñas.

Interspecific Competition Played Key Role in Rise and Fall of Hominins, Study Suggests

Apr 17, 2024 by News Staff

Conventionally, climate is held responsible for the emergence and extinction of hominin species. In most vertebrates, however, interspecies competition...

Toffoli et al. report direct observations of surface waves from a stereo camera system along with concurrent measurements of wind speed during an expedition across the Southern Ocean in the austral winter aboard the South African icebreaker S.A. Agulhas II. Image credit: Alessandro Toffoli.

Strong Winds Drive Formation of Colossal Rogue Waves, Scientists Say

Apr 16, 2024 by News Staff

A rogue wave is a single swell that is much higher than nearby waves, which can damage ships or coastal infrastructure. Ocean waves are among the most...

The great kiskadee (Pitangus sulphuratus) in Beeville, Texas, the United States, in July 2011. Image credit: Tess Thornton / CC BY-SA 3.0 Deed.

Scientists Translate Vocal Muscle Activity of Birds during Sleep into Synthetic Songs

Apr 15, 2024 by News Staff

During sleep, sporadically, it is possible to find neural patterns of activity in areas of the avian brain that are activated during the generation of...

A group of Neanderthals in a cave. Image credit: Tyler B. Tretsven.

Study: Just Like Homo sapiens, Neanderthals Organized Their Living Space in Structured Way

Apr 11, 2024 by News Staff

Because it is often assumed that fundamental behavioral differences distinguish Neanderthals and Homo sapiens, the ability to structure space within the...

Formation and characterization of the connected organoids. Image credit: Osaki et al., doi: 10.1038/s41467-024-46787-7.

Neuroscientists Create Human Brain-Mimicking Tissues in Lab

Apr 11, 2024 by News Staff

The idea of growing a functioning human brain-like tissue in a dish has always sounded pretty far-fetched. Towards this goal, researchers at the University...

Uenoyama et al. improve our understanding of the mechanism of scent marking via the spraying of urine for chemical communication in cats.

New Research Explains Why Sprayed Cat Urine Emits Pungent Odor

Apr 10, 2024 by News Staff

Spraying urine on vertical objects by raising the tail is a commonly observed functional behavior for chemical communication in felids, including domestic...

An artist’s impression of LTT 1445Ab in the triple-star system LTT 1445. Image credit: Sci-News.com.

Scientists Discuss Physics and Mathematics behind ‘3 Body Problem’

Apr 10, 2024 by News Staff

Based on the book trilogy Remembrance of Earth’s Past by Chinese computer engineer Cixin Liu, Netflix’s sci-fi television series 3 Body Problem introduces...

The upper (a) and lower (b) surfaces of the purported sand sculpture from South Africa. Image credit: Helm et al.

120,000-Year-Old Stingray Sand ‘Sculpture’ Found in South Africa

Apr 9, 2024 by News Staff

Nelson Mandela University researcher Charles Helm and his colleagues have found an intriguing rock about 30 km (18.6 miles) east of the South African Blombos...

Jama et al. call for the inclusion of dietary fiber in clinical guidelines for hypertension.

Dietary Fiber Consumption Reduces Blood Pressure, Prevents Cardiovascular Disease, Review Says

Apr 9, 2024 by News Staff

According to several international, regional, and national guidelines on high blood pressure, or hypertension, lifestyle interventions are the first-line...

The wooden spears from the Schöningen site, Germany. Image credit: Minkusimages / Matthias Vogel, NLD.

Study: Woodworking Played Important Role in Human Evolution

Apr 8, 2024 by News Staff

Wooden tools rarely survive in the Paleolithic record limiting our understanding of Pleistocene hunter-gather lifeways. With 187 wooden artifacts, the...

Tang et al. discovered neutronic molecules, in which neutrons can be made to cling to quantum dots, held just by the strong force: the red item represents a bound neutron, the sphere is a hydride nanoparticle, and the yellow field represents a neutron wavefunction. Image credit: Tang et al., doi: 10.1021/acsnano.3c12929.

Scientists Discover ‘Neutronic Molecules’

Apr 8, 2024 by News Staff

Neutrons are subatomic particles that have no electric charge, unlike protons and electrons. That means that while the electromagnetic force is responsible...

Chettih et al. propose that animals recall episodic memories by reactivating hippocampal barcodes. Image credit: Chettih et al., doi: 10.1016/j.cell.2024.02.032.

Chickadees Have Unique Neural Barcodes for Episodic Memories, Researchers Say

Apr 2, 2024 by News Staff

Black-capped chickadees (Poecile atricapillus), small North American passerine birds that live in deciduous and mixed forests, have extraordinary memories...

Jörges et al. tackled the question of whether body posture influences human perception of self-motion and distance; they found some evidence that the same amount of optic flow can elicit the sensation of having traveled further when supine versus when sitting upright, that is, optic flow is more effective at eliciting a sense of self-motion when supine; this constitutes evidence that visual and non-visual cues are at least partially integrated even when self-motion is presented only visually; however, they did not find any significant differences between performance on Earth and in the microgravity of the ISS, suggesting that vestibular cues play a minor role, if any, in the estimation of visually presented self-motion.

Astronauts Have Surprising Ability to Orient Themselves and Gauge Distance Traveled in Space: Study

Mar 28, 2024 by News Staff

New research has implications for crew safety in space and could potentially give clues to how aging affects people’s balance systems here on Earth. Jörges...

The human occupied vehicle Alvin arriving at the seafloor. Image credit: J. McDermott, Lehigh University / T. Barreyre, CNRS / R. Parnell-Turner, Scripps Institution of Oceanography / D. Fornari, Woods Hole Oceanographic Institution / National Deep Submergence Facility / Alvin Group.

Researchers Discover Five New Hydrothermal Vents in Pacific Ocean

Mar 27, 2024 by News Staff

Scientists aboard the research vessel Atlantis have discovered five new deep-sea hydrothermal vent sites on the seafloor at 2,550 m (1.6 miles) depth....

Soltoggio et al. say we are set to see the emergence of Collective AI, where numerous artificial intelligence units, each capable of continuously acquiring new knowledge and skills, form a network to share information with each other.

AI’s Future is Similar to that of Star Trek’s Borg, Scientists Say

Mar 24, 2024 by News Staff

In a new paper in the journal Nature Machine Intelligence, leading computer scientists from around the world review recent machine learning advances converging...

The sea buckthorn (Hippophae rhamnoides). Image credit: Svdmolen / CC BY-SA 3.0 Deed.

Sea Buckthorn Berries are Rich Source of Natural Antioxidants, New Study Shows

Mar 21, 2024 by News Staff

Berries of the sea buckthorn (Hippophae rhamnoides) grown in Canada showed promising health benefits induced by their rich and diverse polyphenolic profile...

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