Showing 20 articles starting at article 441
< Previous 20 articles Next 20 articles >
Categories: Anthropology: General, Energy: Batteries
Published Jurassic shark: Shark from the Jurassic period was already highly evolved


Cartilaginous fish have changed much more in the course of their evolutionary history than previously believed. Evidence for this thesis has been provided by new fossils of a ray-like shark, Protospinax annectans, which demonstrate that sharks were already highly evolved in the Late Jurassic.
Published Ancient proteins offer new clues about origin of life on Earth



By simulating early Earth conditions in the lab, researchers have found that without specific amino acids, ancient proteins would not have known how to evolve into everything alive on the planet today -- including plants, animals, and humans.
Published Deadly waves: Researchers document evolution of plague over hundreds of years in medieval Denmark


Scientists who study the origins and evolution of the plague have examined hundreds of ancient human teeth from Denmark, seeking to address longstanding questions about its arrival, persistence and spread within Scandinavia.
Published New design for lithium-air battery could offer much longer driving range compared with the lithium-ion battery


Scientists have built and tested for a thousand cycles a lithium-air battery design that could one day be powering cars, domestic airplanes, long-haul trucks and more. Its energy storage capacity greatly surpasses that possible with lithium-ion batteries.
Published Ramping up domestic graphite production could aid the green energy transition


Given the growing importance of graphite in energy storage technologies, a team of esearchers has conducted a study exploring ways to reduce reliance on imports of the in high-demand mineral, which powers everything from electric vehicles (EVs) to cell phones.
Published Archaeologists uncover early evidence of brain surgery in Ancient Near East


A recent excavation in Megiddo, Israel, unearthed the earliest example of a particular type of cranial surgery in the Ancient Near East -- and potentially one of the oldest examples of leprosy in the world.
Published New technology turns smartphones into RFID readers, saving costs and reducing waste


Imagine you can open your fridge, open an app on your phone and immediately know which items are expiring within a few days. This is one of the applications that a new technology would enable.
Published Hidden from the Romans: 200 tons of silver on the shores of the river Lahn


In their search for silver ore, the Romans established two military camps in the Bad Ems area near Koblenz in the 1st century AD.
Published Gene variations for immune and metabolic conditions have persisted in humans for more than 700,000 years


A new study explores 'balancing selection' by analyzing thousands of modern human genomes alongside ancient hominin groups, such as Neanderthal and Denisovan genomes. The research has 'implications for understanding human diversity, the origin of diseases, and biological trade-offs that may have shaped our evolution,' says evolutionary biologists.
Published Novel microscope developed to design better high-performance batteries


A research team has developed an operando reflection interference microscope (RIM) that provides a better understanding of how batteries work, which has significant implications for the next generation of batteries.
Published 2.9-million-year-old butchery site reopens case of who made first stone tools


Along the shores of Africa's Lake Victoria in Kenya roughly 2.9 million years ago, early human ancestors used some of the oldest stone tools ever found to butcher hippos and pound plant material, according to new research. The study presents what are likely to be the oldest examples of a hugely important stone-age innovation known to scientists as the Oldowan toolkit, as well as the oldest evidence of hominins consuming very large animals. Excavations at the site, named Nyayanga and located on the Homa Peninsula in western Kenya, also produced a pair of massive molars belonging to the human species' close evolutionary relative Paranthropus. The teeth are the oldest fossilized Paranthropus remains yet found, and their presence at a site loaded with stone tools raises intriguing questions about which human ancestor made those tools.
Published Beyond lithium: A promising cathode material for magnesium rechargeable batteries


Magnesium is a promising candidate as an energy carrier for next-generation batteries. However, the cycling performance and capacity of magnesium batteries need to improve if they are to replace lithium-ion batteries. To this end, a research team focused on a novel cathode material with a spinel structure. Following extensive characterization and electrochemical performance experiments, they have found a specific composition that could open doors to high-performance magnesium rechargeable batteries.
Published Controllable 'defects' improve performance of lithium-ion batteries


Some defects can be good. A new study shows that laser-induced defects in lithium-ion battery materials improve the performance of the battery.
Published New sodium, aluminum battery aims to integrate renewables for grid resiliency


A new sodium battery technology shows promise for helping integrate renewable energy into the electric grid. The battery uses Earth-abundant raw materials such as aluminum and sodium.
Published Changing climate conditions likely facilitated early human migration to the Americas at key intervals, research suggests



Researchers have pinpointed two intervals when ice and ocean conditions would have been favorable to support early human migration from Asia to North America late in the last ice age, a new paper shows.
Published Prehistoric human migration in Southeast Asia driven by sea-level rise


An interdisciplinary team of scientistshas found that rapid sea-level rise drove early settlers in Southeast Asia to migrate during the prehistoric period, increasing the genetic diversity of the region today.
Published Remapping the superhighways travelled by the first Australians reveals a 10,000-year journey through the continent


New research has revealed that the process of 'peopling' the entire continent of Sahul -- the combined mega continent that joined Australia with New Guinea when sea levels were much lower than today -- took 10,000 years. Sophisticated models show the scale of the challenges faced by the ancestors of Indigenous people making their mass migration across the supercontinent more than 60,000 years ago. This pattern led to a rapid expansion both southward toward the Great Australian Bight, and northward from the Kimberley region to settle all parts of New Guinea and, later, the southwest and southeast of Australia.
Published Evolution of wheat spikes since the Neolithic revolution



Around 12,000 years ago, the Neolithic revolution radically changed the economy, diet and structure of the first human societies in the Fertile Crescent of the Near East. With the beginning of the cultivation of cereals -- such as wheat and barley -- and the domestication of animals, the first cities emerged in a new social context marked by a productive economy. Now, a study analyses the evolution of wheat spikes since its cultivation began by the inhabitants of ancient Mesopotamia -- the cradle of agriculture -- between the Tigris and the Euphrates.
Published Researchers decipher atomic-scale imperfections in lithium-ion batteries


Scientists have conducted a detailed examination of high-nickel-content layered cathodes, considered to be components of promise in next-generation lithium-ion batteries. Advanced electron microscopy and deep machine learning enabled the team to observe atomic-scale changes at the interface of materials that make up the batteries.
Published New geosciences study shows Triassic fossils that reveal origins of living amphibians


A team of paleontologists have discovered the first 'unmistakable' Triassic-era caecilian fossil -- the oldest-known caecilian fossils -- thus extending the record of this small, burrowing animal by roughly 35 million years. The find also fills a gap of at least 87 million years in the known historical fossil record of the amphibian-like creature.