Showing 20 articles starting at article 621

< Previous 20 articles        Next 20 articles >

Categories: Biology: Evolutionary, Physics: General

Return to the site home page

Offbeat: General Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Hallmark quantum behavior in bouncing droplets      (via sciencedaily.com)     Original source 

In a study that could help fill some holes in quantum theory, the team recreated a 'quantum bomb tester' in a classical droplet test.

Engineering: Nanotechnology Physics: General Physics: Optics
Published

Chance twists ordered carbon nanotubes into 'tornado films'      (via sciencedaily.com)     Original source 

Scientists have developed two new methods to create ordered carbon nanotube films with either a left- or right-handed chiral pattern.

Physics: General Physics: Optics
Published

Hybrid device significantly improves existing, ubiquitous laser technology      (via sciencedaily.com)     Original source 

Researchers have developed a chip-scale laser source that enhances the performance of semiconductor lasers while enabling the generation of shorter wavelengths. This pioneering work represents a significant advance in the field of photonics, with implications for telecommunications, metrology, and other high-precision applications.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Offbeat: General Offbeat: Plants and Animals
Published

New genes can arise from nothing      (via sciencedaily.com)     Original source 

The complexity of living organisms is encoded within their genes, but where do these genes come from? Researchers resolved outstanding questions regarding the origin of small regulatory genes, and described a mechanism that creates their DNA palindromes. Under suitable circumstances, these palindromes evolve into microRNA genes.

Anthropology: General Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Biology: Zoology Ecology: Nature Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geology Paleontology: Fossils Paleontology: General
Published

Molecular fossils shed light on ancient life      (via sciencedaily.com)     Original source 

Paleontologists are getting a glimpse at life over a billion years in the past based on chemical traces in ancient rocks and the genetics of living animals. New research combines geology and genetics, showing how changes in the early Earth prompted a shift in how animals eat.

Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Engineering: Nanotechnology Physics: General Physics: Optics
Published

Polaritons open up a new lane on the semiconductor highway      (via sciencedaily.com)     Original source 

On the highway of heat transfer, thermal energy is moved by way of quantum particles called phonons. But at the nanoscale of today's most cutting-edge semiconductors, those phonons don't remove enough heat. That's why researchers are focused on opening a new nanoscale lane on the heat transfer highway by using hybrid quasiparticles called 'polaritons.'

Chemistry: General Energy: Nuclear Physics: General Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Ancient stars made extraordinarily heavy elements      (via sciencedaily.com)     Original source 

How heavy can an element be? An international team of researchers has found that ancient stars were capable of producing elements with atomic masses greater than 260, heavier than any element on the periodic table found naturally on Earth. The finding deepens our understanding of element formation in stars.

Chemistry: Inorganic Chemistry Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Physics
Published

Bowtie resonators that build themselves bridge the gap between nanoscopic and macroscopic      (via sciencedaily.com)     Original source 

Two nanotechnology approaches converge by employing a new generation of fabrication technology. It combines the scalability of semiconductor technology with the atomic dimensions enabled by self-assembly.

Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Diamonds and rust help unveil 'impossible' quasi-particles      (via sciencedaily.com)     Original source 

Researchers have discovered magnetic monopoles -- isolated magnetic charges -- in a material closely related to rust, a result that could be used to power greener and faster computing technologies.

Physics: General Physics: Optics
Published

Optical data storage breakthrough      (via sciencedaily.com)     Original source 

Physicists have developed a technique with the potential to enhance optical data storage capacity in diamonds. This is possible by multiplexing the storage in the spectral domain.

Offbeat: General Offbeat: Space Physics: General Physics: Quantum Computing Physics: Quantum Physics Space: Astrophysics Space: General Space: Structures and Features
Published

New theory unites Einstein's gravity with quantum mechanics      (via sciencedaily.com)     Original source 

The prevailing assumption has been that Einstein's theory of gravity must be modified, or 'quantized', in order to fit within quantum theory. This is the approach of two leading candidates for a quantum theory of gravity, string theory and loop quantum gravity. But a new theory challenges that consensus and takes an alternative approach by suggesting that spacetime may be classical -- that is, not governed by quantum theory at all. 

Chemistry: Biochemistry Energy: Technology Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Quantum physics: Superconducting Nanowires Detect Single Protein Ions      (via sciencedaily.com)     Original source 

An international research team has achieved a breakthrough in the detection of protein ions: Due to their high energy sensitivity, superconducting nanowire detectors achieve almost 100% quantum efficiency and exceed the detection efficiency of conventional ion detectors at low energies by a factor of up to a 1,000. In contrast to conventional detectors, they can also distinguish macromolecules by their impact energy. This allows for more sensitive detection of proteins and it provides additional information in mass spectrometry.

Physics: General
Published

Engineers tackle hard-to-map class of materials      (via sciencedaily.com)     Original source 

Materials scientists mapped the structural features of a 2D ferroelectric material made of tin and selenium atoms using a new technique that can be applied to other 2D van der Waals ferroelectrics, unlocking their potential for use in electronics and other applications.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Zoology Ecology: Nature Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

Earliest-known fossil mosquito suggests males were bloodsuckers too      (via sciencedaily.com)     Original source 

Researchers have found the earliest-known fossil mosquito in Lower Cretaceous amber from Lebanon. What's more, the well-preserved insects are two males of the same species with piercing mouthparts, suggesting they likely sucked blood. That's noteworthy because, among modern-day mosquitoes, only females are hematophagous, meaning that they use piercing mouthparts to feed on the blood of people and other animals.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Sea Life Ecology: Trees Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Climate Paleontology: Fossils Paleontology: General
Published

Crocodile family tree mapped: New light shed on croc evolution      (via sciencedaily.com)     Original source 

Around 250 million years ago, 700 species of reptiles closely related to the modern-day crocodile roamed the earth, now new research reveals how a complex interplay between climate change, species competition and habitat can help explain why just 23 species of crocodile survive today.     

Chemistry: Inorganic Chemistry Energy: Alternative Fuels Engineering: Nanotechnology Environmental: General Physics: General
Published

Harvesting more solar energy with supercrystals      (via sciencedaily.com)     Original source 

Hydrogen is a building block for the energy transition. To obtain it with the help of solar energy, researchers have developed new high-performance nanostructures. The material holds a world record for green hydrogen production with sunlight.

Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Physics: General
Published

Control over friction, from small to large scales      (via sciencedaily.com)     Original source 

Friction is hard to predict and control, especially since surfaces that come in contact are rarely perfectly flat. New experiments demonstrate that the amount of friction between two silicon surfaces, even at large scales, is determined by the forming and rupturing of microscopic chemical bonds between them. This makes it possible to control the amount of friction using surface chemistry techniques.

Biology: Evolutionary Biology: General Biology: Zoology Ecology: Animals Ecology: General Ecology: Nature Ecology: Research Environmental: Water
Published

Snake skulls show how species adapt to prey      (via sciencedaily.com)     Original source 

By studying the skull shapes of dipsadine snakes, researchers have found how these species of snakes in Central and South America have evolved and adapted to meet the demands of their habitats and food sources.

Anthropology: Early Humans Anthropology: General Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Genetics Ecology: Animals
Published

A mixed origin made maize successful      (via sciencedaily.com)     Original source 

Maize is one of the world's most widely grown crops. It is used for both human and animal foods and holds great cultural significance, especially for indigenous peoples in the Americas. Yet despite its importance, the origins of the grain have been hotly debated for more than a century. Now new research shows that all modern maize descends from a hybrid created just over 5000 years ago in central Mexico, thousands of years after the plant was first domesticated.