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Categories: Anthropology: General, Physics: Optics
Published Cultural artifacts serve as 'cognitive fossils,' helping uncover the psychology of the past



No two societies in history think exactly alike. In fact, the mindset of a given society throughout history can help historians unpack important clues about the effects of psychological shifts -- such as more social trust or more openness. Researchers explain how modern computing methods like text mining, face detection algorithms, and melodic extraction programs can enable large-scale analysis of cultural artifacts such as paintings, stories, or clothing to uncover this psychological data.
Published 'Hot' new form of microscopy examines materials using evanescent waves



A team of researchers has built a prototype microscope that does not rely on backscattered radiation, instead uses passive detection of thermally excited evanescent waves. They have examined dielectric materials with passive near-field spectroscopy to develop a detection model to further refine the technique, working to develop a new kind of microscopy for examining nanoscopic material surfaces.
Published Fossils tell tale of last primate to inhabit North America before humans



Paleontologists have shed light on the long-standing saga of Ekgmowechashala, based on fossil teeth and jaws found in both Nebraska and China. Ekgmowechashala is the last primate found in the fossil record before humans.
Published Frogs were Florida's first-known vertebrates from the Caribbean



A new fossil study shows that frogs from the genus Eleutherodactylus are geologically the oldest Caribbean vertebrates to be found in Florida. They made the journey 20 million years ago, when much of Florida was still underwater.
Published Decarbonizing light-duty transportation in the United States: Study reveals strategies to achieve goal



Researchers found that meeting greenhouse gas emissions goals for light-duty vehicles, which are passenger vehicles such as cars and trucks, is possible, but not just by increasing electric vehicle sales.
Published Vacuum in optical cavity can change material's magnetic state without laser excitation



Researchers in Germany and the USA have produced the first theoretical demonstration that the magnetic state of an atomically thin material, ?-RuCl3, can be controlled solely by placing it into an optical cavity. Crucially, the cavity vacuum fluctuations alone are sufficient to change the material's magnetic order from a zigzag antiferromagnet into a ferromagnet.
Published New secrets about cat evolution revealed



By comparing genomes of several cat species, the project has helped researchers understand why cat genomes tend to have fewer complex genetic variations (such as rearrangements of DNA segments) than other mammal groups, like primates. It also revealed new insights into which parts of cat DNA are most likely to evolve rapidly and how they play a role in species differentiation.
Published Optical-fiber based single-photon light source at room temperature for next-generation quantum processing



Single-photon emitters quantum mechanically connect quantum bits (or qubits) between nodes in quantum networks. They are typically made by embedding rare-earth elements in optical fibers at extremely low temperatures. Now, researchers have developed an ytterbium-doped optical fiber at room temperature. By avoiding the need for expensive cooling solutions, the proposed method offers a cost-effective platform for photonic quantum applications.
Published Bartering light for light: Scientists discover new system to control the chaotic behavior of light



Researchers describe a new platform for controlling the chaotic behavior of light by tailoring its scattering patterns using light itself.
Published In a surprising finding, light can make water evaporate without heat



At the interface of water and air, light can, in certain conditions, bring about evaporation without the need for heat, according to a new study.
Published New twist on optical tweezers



Optical tweezers use laser light to manipulate small particles. A new method has been advanced using Stampede2 supercomputer simulations that makes optical tweezers safer to use for potential biological applications, such as cancer therapy.
Published Photography: One-stop solution for shaping and outlining objects



A joint research team has developed a dual metalens that can switch between shooting modes based on light conditions.
Published New frequency comb can identify molecules in 20-nanosecond snapshots



Researchers have developed a device that can detect the presence of specific molecules in a sample every 20 nanoseconds, or billionths of a second. With this new capability, researchers can potentially use frequency combs to better understand the split-second intermediate steps in fast-moving processes ranging from the workings of hypersonic jet engines to the chemical reactions between enzymes that regulate cell growth.
Published To advance space colonization, new research explores 3D printing in microgravity



Research into how 3D printing works in a weightless environment aims to support long-term exploration and habitation on spaceships, the moon or Mars.
Published Controlling organoids with light



Organoids help researchers understand biological processes in health and in disease. It is, however, difficult to influence the way in which they organize themselves into complex tissues. Now a group has found a new way to do so.
Published Inspection method increases confidence in laser powder bed fusion 3D printing



Researchers have improved flaw detection to increase confidence in metal parts that are 3D-printed using laser powder bed fusion.
Published Community-developed guidelines for publishing images help address reproducibility problem in science



The use of images in scientific papers is more popular than ever, but there have been no common standards for their publication -- until now.
Published Highest-resolution single-photon superconducting camera



Researchers have built a superconducting camera containing 400,000 pixels -- 400 times more than any other device of its type. Having more pixels could open up many new applications in science and biomedical research.
Published In Prehispanic Cancun, immigrants were treated just like Maya locals



Ancient people immigrated to Cancun Island and were treated just like locals, according to a new study.
Published Climate change likely impacted human populations in the Neolithic and Bronze Age



Human populations in Neolithic Europe fluctuated with changing climates, according to a new study.