New University of Sydney research has revealed that the ancient Cambodian city of Angkor underwent a gradual decline in occupation rather than an abrupt collapse. Researchers have long debated the causes of Angkor’s demise in the 15th century. Historical explanations have emphasized the role of aggressive neighboring states, and the abandonment of Angkor in A.D. ...
While the “wisdom of the crowd” shapes the behavior of large groups of people, less is known about small-group dynamics and how individuals interact to make decisions, particularly when it comes to the emergence of leaders, a key area of inquiry in organizational research. The phenomenon is critical to arriving at an understanding of social networks of all ...
In 2015, the Laser Interferometer Gravitational-Wave Observatory (LIGO) made history when it detected gravitational waves for the first time, something that Albert Einstein had proposed almost a hundred years ago. Now, it is getting a significant upgrade that will improve the instrument’s sensitivity to gravitational waves. Funds for LIGO upgrade In total, the LIGO project will receive ...
Usually, soft-bodied species like spiders aren’t fossilized in rock-like animals with bones and teeth. More often, ancient spiders and insects are more likely to be discovered preserved in amber. Yet a new paper in the Journal of Systematic Palaeontology, co-written by a University of Kansas researcher, describes spider fossils found in an area of Korean ...
Excavations at two quarries in Wales, known to be the source of the Stonehenge bluestones, provide new evidence of megalith quarrying 5,000 years ago, according to a new UCL-led study. Geologists have long known that 42 of Stonehenge’s smaller stones, known as “bluestones,” came from the Preseli hills in Pembrokeshire, West Wales. Now, a new ...
Anthropologists at the University of Oxford have discovered what they believe to be seven universal moral rules. The rules — help your family, help your group, return favors, be brave, defer to superiors, divide resources fairly, and respect others’ property — were found in a survey of 60 cultures from all around the world. Previous studies ...
What is a black hole? In an article that has just appeared in the journal Nature Astronomy, LMU philosopher Erik Curiel shows that physicists use different definitions of the concept, depending on their own particular fields of interest. It is conventionally thought of as an astronomical object that irrevocably consumes all matter and radiation that ...
Megalodon — a giant predatory shark that has inspired numerous documentaries, books, and blockbuster movies — likely went extinct at least 1 million years earlier than previously thought, according to new research published in PeerJ — the Journal of Life and Environmental Sciences. Earlier research, which used a worldwide sample of fossils, suggested that the 50-foot-long, giant ...
Most schoolchildren learn that the Earth has three (or four) layers — a crust, mantle, and core, which is sometimes subdivided into an inner and outer core. That’s not wrong, but it does leave out several other layers that scientists have identified within the Earth, including the transition zone within the mantle. A massive earthquake ...
Total human carbon levels emissions could match those of Earth’s last major greenhouse warming event in fewer than five generations, new research finds. A new study finds humans are pumping carbon dioxide into the atmosphere at a rate 9 to 10 times higher than the greenhouse gas was emitted during the Paleocene-Eocene Thermal Maximum (PETM), ...
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