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Categories: Anthropology: General, Energy: Batteries
Published Bering Land Bridge formed surprisingly late during last ice age


A new study that reconstructs the history of sea level at the Bering Strait shows that the Bering Land Bridge connecting Asia to North America did not emerge until around 35,700 years ago, less than 10,000 years before the height of the last ice age (known as the Last Glacial Maximum). The findings indicate that the growth of the ice sheets -- and the resulting drop in sea level -- occurred surprisingly quickly and much later in the glacial cycle than previous studies had suggested.
Published Archaeologists uncover oldest known projectile points in the Americas


Archaeologists have uncovered projectile points in Idaho that are thousands of years older than any previously found in the Americas, helping to fill in the history of how early humans crafted and used stone weapons.
Published Hunter-gatherer social ties spread pottery-making far and wide


Analysis of more than 1,200 vessels from hunter-gatherer sites has shown that pottery-making techniques spread vast distances over a short period of time through social traditions being passed on.
Published Designing better battery electrolytes


Scientists give the lay of the land in the quest for electrolytes that could enable revolutionary battery chemistries.
Published Drought encouraged Attila's Huns to attack the Roman empire, tree rings suggest


Hunnic peoples migrated westward across Eurasia, switched between farming and herding, and became violent raiders in response to severe drought in the Danube frontier provinces of the Roman empire, a new study argues.
Published Early humans may have first walked upright in the trees


Human bipedalism -- walking upright on two legs -- may have evolved in trees, and not on the ground as previously thought, according to a new study.
Published Extinct 'monkey lemur' shows similarities to fossil humans


Analysis of teeth of extinct lemurs has revealed fascinating clues to the evolution of humans, a new study has found.
Published Ingestible biobatteries could allow new view of digestive system


A new biobattery could power ingestible cameras in the small intestine.
Published New life flashed into lithium-ion anodes


Chemists use flash Joule heating to recover graphite anodes from spent lithium-ion batteries at a cost of about $118 per ton.
Published Immune system of modern Papuans shaped by DNA from ancient Denisovans, study finds


Modern Papuans' immune system likely evolved with a little help from the Denisovans, a mysterious human ancestor who interbred with ancient humans, according to a new study.
Published How intensive agriculture turned a wild plant into a pervasive weed


Agriculture is driving rapid evolutionary change, not just on farms but also in wild species in surrounding landscapes, new research has found.
Published Flameproofing lithium-ion batteries with salt


A polymer-based electrolyte makes for batteries that keep working -- and don't catch fire -- when heated to over 140 degrees F.
Published For 400 years, Indigenous tribes buffered climate's impact on wildfires in the American Southwest



Devastating megafires are becoming more common, in part, because the planet is warming. But a new study suggests bringing 'good fire' back to the U.S. and other wildfire fire-prone areas, as Native Americans once did, could potentially blunt the role of climate in triggering today's wildfires.
Published New battery technology has potential to significantly reduce energy storage costs


Researchers are hoping that a new, low-cost battery which holds four times the energy capacity of lithium-ion batteries and is far cheaper to produce will significantly reduce the cost of transitioning to a decarbonized economy.
Published Jawbone may represent earliest presence of humans in Europe


For over a century, one of the earliest human fossils ever discovered in Spain has been long considered a Neanderthal. However, new analysis from an international research team dismantles this century-long interpretation, demonstrating that this fossil is not a Neanderthal; rather, it may actually represent the earliest presence of Homo sapiens ever documented in Europe.
Published X-rays reveal elusive chemistry for better EV batteries


Scientists used high energy x-rays to investigate the solid-electrolyte interphase, a chemical layer in batteries that's key to stabilizing lithium metal anodes. Chemists unraveled this complex chemical mechanisms that is crucial for boosting energy density.
Published New manufacturing process produces better, cheaper cathodes for lithium-ion batteries


Researchers have developed a new method for producing a key component of lithium-ion batteries. The result is a more affordable battery from a faster, less wasteful process that uses less toxic material.
Published A self-powered ingestible sensor opens new avenues for gut research


Engineering researchers have developed a battery-free, pill-shaped ingestible biosensing system designed to provide continuous monitoring in the intestinal environment. It gives scientists the ability to monitor gut metabolites in real time, which wasn't possible before. This could unlock a new understanding of intestinal metabolite composition, which significantly impacts human health overall.
Published Stabilizing lithium-ion batteries with microbially synthesized electrolyte additive


Lithium-ion batteries with high-energy-density cathodes are necessary to meet the energy demands of next-generation electronics and electric vehicles. At high voltages, however, the battery electrolyte undergoes excessive decomposition, compromising cathode performance. To tackle this, researchers have now synthesized a bio-based, non-toxic additive material that stabilizes the cathode by forming a passivation layer on its surface and suppressing its decomposition. Eco-friendly and low-cost, the novel compound could promote a wider utilization of bio-based resources.
Published Ancient DNA from medieval Germany tells the origin story of Ashkenazi Jews


Extracting ancient DNA from teeth, an international group of scientists peered into the lives of a once-thriving medieval Ashkenazi Jewish community in Erfurt, Germany. The findings show that the Erfurt Jewish community was more genetically diverse than modern day Ashkenazi Jews.