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Categories: Anthropology: Cultures, Physics: Optics
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.
Published Achieving large and uniform particle sizes



Dispersions of polymer particles in a liquid phase (latexes) have many important applications in coatings technology, medical imaging, and cell biology. A team of researchers has now developed a method to produce stable polystyrene dispersions with unprecedentedly large, and uniform, particle sizes. Narrow size distributions are essential in many advanced technologies, but were previously difficult to produce photochemically.
Published Diapers can be recycled 200 times faster with light



More than 100,000 tons of diapers are disposed of annually in Germany. Vast amounts of valuable resources, such as diaper liners, end up in the trash. The liners consist of special polymers, so-called superabsorbers. Researchers have now succeeded in considerably improving their complex recycling process. They use UV radiation to degrade the chemical chains that keep the polymers together. No chemicals are needed. Recycling at room temperature is 200 times faster than conventional recycling. The recycled polymers can then be processed to new adhesives and dyes.
Published Scientists shed light on potential breakthrough biomedical molecule



Developing a new, light-activated method to produce the molecule opens doors for future biomedical applications.
Published Preventing airborne infection without impeding communication with ions and electric field



A novel device developed by researchers in a new study utilizes ions and an electric field to effectively capture infectious droplets and aerosols, while letting light and sound pass through to allow communication. The innovation is significant in the wake of the COVID-19 pandemic, since it shows promise in preventing airborne infection while facilitating communication.
Published How quantum light 'sees' quantum sound



Researchers have proposed a new way of using quantum light to 'see' quantum sound. A new paper reveals the quantum-mechanical interplay between vibrations and particles of light, known as photons, in molecules. It is hoped that the discovery may help scientists better understand the interactions between light and matter on molecular scales. And it potentially paves the way for addressing fundamental questions about the importance of quantum effects in applications ranging from new quantum technologies to biological systems.
Published Smartphone attachment could increase racial fairness in neurological screening



A new smartphone attachment could enable people to screen for a variety of neurological conditions, such as Alzheimer's disease and traumatic brain injury, at low cost -- and do so accurately regardless of their skin tone. The attachment fits over a smartphone's camera to capture clear video of pupil size changes, which can offer clues about an individual's neurological functions. The device helps the camera see the pupil easily in dark eye colors.
Published Chemists, engineers craft adjustable arrays of microscopic lenses



A team has created minuscule lenses that it can expand or contract in mere seconds -- modifying their magnification, focal length and other optical properties in the process. That on-the-fly adaptability bodes well for the design's use in micro-projection systems and even the culturing of cells, the researchers said.
Published Challenging prehistoric gender roles: Research finds that women were hunters, too



Anthropologists challenge the traditional view of men as hunters and women as gatherers in prehistoric times. Their research reveals evidence of gender equality in roles and suggests that women were physically capable of hunting. The study sheds light on the gender bias in past research and calls for a more nuanced understanding of prehistoric gender roles.
Published Accelerating waves shed light on major problems in physics



Researchers at Tampere University and the University of Eastern Finland have reached a milestone in a study where they derived a new kind of wave equation, which applies for accelerating waves. The novel formalism has turned out to be an unexpectedly fertile ground for examining wave mechanics, with direct connections between accelerating waves, general theory of relativity, as well as the arrow of time.
Published Researchers identify the oldest pieces of Baltic amber found on the Iberian Peninsula: imports began over 5,000 years ago



Baltic amber is a luxury material used in jewellery and handicrafts all over the world. Researchers have shown that Baltic amber arrived on the Iberian Peninsula at least in the 4th millennium BC, more than a millennium earlier than previously thought.
Published Scientists propose super-bright light sources powered by quasiparticles



Researchers have proposed ways to use quasiparticles to create light sources as powerful as the most advanced ones in existence today, but much smaller.
Published Soft optical fibers block pain while moving and stretching with the body



New soft, implantable fibers can deliver light to major nerves through the body. They are an experimental tool for scientists to explore the causes and potential treatments for peripheral nerve disorders in animal models.