Phys.org news
Phys.org / Tooth enamel reveals the origins of African slaves buried on St Helena
In the mid-19th century, the remote island of St. Helena, located about 1,200 miles (1,900 kilometers) off the southwestern coast of Africa, became a receiving point for thousands of enslaved Africans rescued from illegal ...
Phys.org / A source of extremely high-energy particles in the Milky Way identified
Cosmic rays are made primarily of protons with a few electrons sprinkled in, and they can reach energies even higher than what human-made accelerators can produce. Considering human-made accelerators, such as the Large Hadron ...
Phys.org / Reptile fossil found in Brazil helps shed light on the common origins of dinosaurs and crocodiles
Long before dinosaurs ruled the continents and modern crocodiles first appeared, their ancestors were already going through a decisive phase in their evolutionary history. It was in this ancient world, shortly after the greatest ...
Phys.org / Underwater oxygen loss threatens earth's stability, researchers warn
A new review in Limnology and Oceanography led by scientists at UC San Diego's Scripps Institution of Oceanography warns that the rapid loss of oxygen from the ocean and other aquatic ecosystems is pushing Earth toward an ...
Phys.org / New optical chip design controls light speed in real time, simulations suggest
Seoul National University College of Engineering announced that a joint research team led by Professor Namkyoo Park and Professor Sunkyu Yu of the Department of Electrical and Computer Engineering at SNU, in collaboration ...
Phys.org / Researchers identify class of 'oddball' meteorite that killed the dinosaurs
A rare CO chondrite meteorite was the probable impacter that struck Earth 66 million years ago, wiping out 75% of Earth's species, including nonavian dinosaurs. These findings are published in Science Advances. Researchers ...
Phys.org / Aboriginal people harvested this native grass for millennia: Scientists find an odd trait in its DNA
Seen from the air, Channel Country resembles a vibrant, vast tapestry, with a network of waterways crisscrossing the land. Spread across more than 280,000 square kilometers (108,000 square miles) in outback Australia, it ...
Phys.org / Thinner wires, faster electrons: Quantum material challenges copper at chip scale
Electrical interconnects may very well be the unsung heroes of modern microchips. These tiny wires—typically made of copper due to its high conductivity—string together the billions of transistors that drive our computers ...
Phys.org / Wild snapdragons paint themselves in subtle shades to attract bees
Just as careful blending of eye shadow can make a difference to our looks, a recent study has shown how flowers go to considerable trouble to fine-tune their shades. In the relentless competition to attract bees, a slight ...
Phys.org / Amazon soy pact collapse could add 1.4 million hectares of deforestation by 2036
The collapse of a landmark Amazon soy pact will drive at least 1.4 million hectares (3.5 million acres) of extra deforestation in Brazil over the next decade, releasing carbon emissions equal to Canada's annual output, according ...
Phys.org / Sun holds 55% more silver than estimated, new model reveals
Researchers at Uppsala University have calculated that the sun contains 55% more silver than previously estimated. The results are based on more realistic modeling of the sun's atmosphere and resolve a long-standing problem ...
Phys.org / AI-designed proteins help scientists see inside living cells
Cells are like metropolises, home to millions of molecular residents. If one were to stand atop a high-rise, trying to identify most of its inhabitants would seem an impossible task. Even with the sophisticated imaging tools ...
