Showing 20 articles starting at article 321

< Previous 20 articles        Next 20 articles >

Categories: Archaeology: General, Chemistry: General

Return to the site home page

Anthropology: Cultures Anthropology: General Archaeology: General Geoscience: Earth Science Geoscience: Geography
Published

Pacific cities much older than previously thought      (via sciencedaily.com)     Original source 

New evidence of one of the first cities in the Pacific shows they were established much earlier than previously thought, according to new research. The study used aerial laser scanning to map archaeological sites on the island of Tongatapu in Tonga, showing Earth structures were being constructed in Tongatapu around AD 300.

Anthropology: Cultures Anthropology: General Archaeology: General Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Space Space: Astronomy Space: General Space: The Solar System
Published

The hidden role of the Milky Way in ancient Egyptian mythology      (via sciencedaily.com)     Original source 

Astrophysicists shed light on the relationship between the Milky Way and the Egyptian sky-goddess Nut. The paper draws on ancient Egyptian texts and simulations to argue that the Milky Way might have shone a spotlight, as it were, on Nut's role as the sky. It proposes that in winter, the Milky Way highlighted Nut's outstretched arms, while in summer, it traced her backbone across the heavens.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry
Published

New strategy for assessing the applicability of reactions      (via sciencedaily.com)     Original source 

Chemists show that a machine-based method prevents widespread 'bias' in chemical publications.

Chemistry: Biochemistry Chemistry: General Offbeat: General
Published

Revolutionary molecular device unleashes potential for targeted drug delivery and self-healing materials      (via sciencedaily.com)     Original source 

In a new breakthrough that could revolutionise medical and material engineering, scientists have developed a first-of-its-kind molecular device that controls the release of multiple small molecules using force.

Chemistry: Biochemistry Chemistry: General Chemistry: Thermodynamics Energy: Technology Environmental: General Geoscience: Geochemistry
Published

New device gathers, stores electricity in remote settings      (via sciencedaily.com)     Original source 

Wirelessly connected devices perform an expanding array of applications, such as monitoring the condition of machinery and remote sensing in agricultural settings. These applications hold much potential for improving the efficiency, but how do you power these devices where reliable electrical sources are not available? Research points to a possible solution in the form of a novel type of battery.

Chemistry: Biochemistry Chemistry: General Energy: Alternative Fuels Energy: Fossil Fuels Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Subterranean storage of hydrogen      (via sciencedaily.com)     Original source 

Scientists are using computer simulations and laboratory experiments to see if depleted oil and natural gas reservoirs can be used for storing carbon-free hydrogen fuel. Hydrogen is an important clean fuel: It can be made by splitting water using solar or wind power, it can be used to generate electricity and power heavy industry, and it could be used to power fuel-cell-based vehicles. Additionally, hydrogen could be stored for months and used when energy needs outpace the supply delivered by renewable energy sources.

Anthropology: General Archaeology: General
Published

Early medieval money mystery solved      (via sciencedaily.com)     Original source 

Byzantine bullion fueled Europe's revolutionary adoption of silver coins in the mid-7th century, only to be overtaken by silver from a mine in Charlemagne's Francia a century later, new tests reveal. The findings could transform our understanding of Europe's economic and political development.

Chemistry: General Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Using pulp and paper waste to scrub carbon from emissions      (via sciencedaily.com)     Original source 

Researchers have come up with an innovative approach to improve the energy efficiency of carbon conversion, using waste material from pulp and paper production. The technique they've pioneered not only reduces the energy required to convert carbon into useful products, but also reduces overall waste in the environment.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Mathematics: Statistics
Published

How scientists are accelerating chemistry discoveries with automation      (via sciencedaily.com)     Original source 

Scientists have developed an automated workflow that could accelerate the discovery of new pharmaceutical drugs and other useful products. The new automated approach could analyze chemical reactions in real time and identify new chemical-reaction products much faster than current laboratory methods.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry
Published

A simple, inexpensive way to make carbon atoms bind together      (via sciencedaily.com)     Original source 

The active ingredient in many drugs is what's known as a small molecule: bigger than water, much smaller than an antibody and mainly made of carbon. It's tough, however, to make these molecules if they require a quaternary carbon -- a carbon atom bonded to four other carbon atoms. But now, scientists have uncovered a potential cost-effective way to produce these tricky motifs.

Archaeology: General Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Zoology Paleontology: General
Published

In the evolution of walking, the hip bone connected to the rib bones      (via sciencedaily.com)     Original source 

A new reconstruction of the 375-million-year-old fossil fish Tiktaalik -- a close relative of limbed vertebrates -- used micro-CT to reveal bones still embedded in matrix. The reconstruction shows that the fish's ribs likely attached to its pelvis, an innovation thought to be crucial to supporting the body and for the eventual evolution of walking.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics Space: Astrophysics Space: General Space: Structures and Features
Published

Chemical reactions can scramble quantum information as well as black holes      (via sciencedaily.com)     Original source 

A team of researchers has shown that molecules can be as formidable at scrambling quantum information as black holes by combining mathematical tools from black hole physics and chemical physics and testing their theory in chemical reactions.

Biology: Microbiology Chemistry: General
Published

Rapid, simultaneous detection of multiple bacteria achieved with handheld sensor      (via sciencedaily.com)     Original source 

A team has developed a method for simultaneous detection of multiple disease-causing bacterial species within one hour using a handheld device.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Energy: Technology Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology
Published

'Tug of war' tactic enhances chemical separations for critical materials      (via sciencedaily.com)     Original source 

Lanthanide elements are important for clean energy and other applications. To use them, industry must separate mixed lanthanide sources into individual elements using costly, time-consuming, and waste-generating procedures. An efficient new method can be tailored to select specific lanthanides. The technique combines two substances that do not mix and that prefer different types of lanthanides. The process would allow for smaller equipment, less use of chemicals, and less waste production.

Biology: Biochemistry Biology: General Chemistry: Biochemistry Chemistry: General
Published

Developing a vaccine for the 'zombie drug' xylazine      (via sciencedaily.com)     Original source 

Chemical biologists design an early 'proof-of-concept' vaccine that could lead to the first effective treatment of xylazine overdose in people.

Chemistry: General Energy: Batteries Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Unleashing disordered rocksalt oxides as cathodes for rechargeable magnesium batteries      (via sciencedaily.com)     Original source 

Researchers have made a groundbreaking advancement in battery technology, developing a novel cathode material for rechargeable magnesium batteries that enables efficient charging and discharging even at low temperatures.

Chemistry: General Chemistry: Inorganic Chemistry Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Water-based paints: Less stinky, but some still contain potentially hazardous chemicals      (via sciencedaily.com)     Original source 

Choosing paint for your home brings a lot of options: What kind of paint, what type of finish and what color? Water-based paints have emerged as 'greener' and less smelly than solvent-based options. And they are often advertised as containing little-to-no volatile organic compounds (VOCs). But, according to new research, some of these paints do contain compounds that are considered VOCs, along with other chemicals of emerging concern.

Anthropology: General Archaeology: General Offbeat: General Offbeat: Paleontology and Archeology
Published

Last chance to record archaic Greek language 'heading for extinction'      (via sciencedaily.com)     Original source 

A new data crowdsourcing platform aims to preserve the sound of Romeyka, an endangered millennia-old variety of Greek. Experts consider the language to be a linguistic goldmine and a living bridge to the ancient world.