Showing 20 articles starting at article 721

< Previous 20 articles        Next 20 articles >

Categories: Ecology: Animals, Physics: Optics

Return to the site home page

     (via sciencedaily.com)     Original source 

Bats may have lived in caves and used soundwaves to navigate much earlier than first thought.

     (via sciencedaily.com)     Original source 

Researchers have proposed ways to use quasiparticles to create light sources as powerful as the most advanced ones in existence today, but much smaller.

     (via sciencedaily.com)     Original source 

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.

     (via sciencedaily.com)     Original source 

A breakthrough development in photonic-electronic hardware could significantly boost processing power for AI and machine learning applications. The approach uses multiple radio frequencies to encode data, enabling multiple calculations to be carried out in parallel. The method shows promise for outperforming state-of-the-art electronic processors, with further enhancements possible.

     (via sciencedaily.com)     Original source 

Many people have experienced a muddy off-flavor in farmed fish. While the aquaculture industry has known about the problem for 20 years, it continues to impact the consumption of otherwise healthy and potentially sustainable fish. Now, researchers have been able to pinpoint exactly when the off-flavors emerge. And this can make it easier to deal with the compounds that turn people away from farmed fish.

     (via sciencedaily.com)     Original source 

Biodegradable plastics may not be the solution to plastic pollution many hoped for, with a new study showing they are still harmful to fish.

     (via sciencedaily.com)     Original source 

Particle accelerators are crucial tools in a wide variety of areas in industry, research and the medical sector. The space these machines require ranges from a few square meters to large research centers. Using lasers to accelerate electrons within a photonic nanostructure constitutes a microscopic alternative with the potential of generating significantly lower costs and making devices considerably less bulky. Until now, no substantial energy gains were demonstrated. In other words, it has not been shown that electrons really have increased in speed significantly. Two teams of laser physicists have just succeeded in demonstrating a nanophotonic electron accelerator.

     (via sciencedaily.com)     Original source 

The crown-of-thorns starfish is nature's ultimate coral predator that has a circle of life perfectly adapted to warming waters.

     (via sciencedaily.com)     Original source 

Attempts to break the diffraction limit with 'super lenses' have all hit the hurdle of extreme visual losses. Now physicists have shown a new pathway to achieve superlensing with minimal losses, breaking through the diffraction limit by a factor of nearly four times. The key to their success was to remove the super lens altogether.

     (via sciencedaily.com)     Original source 

Physicists have used a small glass bulb containing an atomic vapor to demonstrate a new form of antenna for radio waves. The bulb was 'wired up' with laser beams and could therefore be placed far from any receiver electronics.

     (via sciencedaily.com)     Original source 

Researchers say mapping the genetic code of the brushtail possum will benefit those working to both conserve and control the animal.

     (via sciencedaily.com)     Original source 

Animal sounds are a very good indicator of biodiversity in tropical reforestation areas. Researchers demonstrate this by using sound recordings and AI models.

     (via sciencedaily.com)     Original source 

In the world of threatened and endangered species conservation, the genomic revolution has raised some complicated questions: How can scientists justify assessing species genetic diversity without consulting entire genomes now that they can be sequenced? But then again, how can scientists justify the time and expense of genome sequencing when age-old measures of neutral genetic diversity are much cheaper and easier to obtain? A new study suggests making a transition from 'old school' genetics to 'new school' genomics for species conservation purposes probably isn't necessary in all cases.

     (via sciencedaily.com)     Original source 

Populations of charismatic animals have recovered since hunting ban but now struggle to find enough food.

     (via sciencedaily.com)     Original source 

Scientists have theoretically predicted that light can be bent under pseudogravity. A recent study by researchers using photonic crystals has demonstrated this phenomenon. This breakthrough has significant implications for optics, materials science, and the development of 6G communications.  

     (via sciencedaily.com)     Original source 

Physicists have shown that simulating models of hypothetical time travel can solve experimental problems that appear impossible to solve using standard physics.

     (via sciencedaily.com)     Original source 

'Flagship' individual animals like Cecil the lion or Freya the walrus can boost conservation, new research suggests.

     (via sciencedaily.com)     Original source 

A research team has succeeded in developing a cutting-edge display using transfer-printing techniques, propelling the field of multifunctional displays into new realms of possibility.

     (via sciencedaily.com)     Original source 

Researchers have long been exploring the effect of using tailored laser drives to manipulate the properties of quantum materials away from equilibrium. One of the most striking demonstrations of these physics has been in unconventional superconductors, where signatures of enhanced electronic coherences and super-transport have been documented in the resulting non-equilibrium states. However, these phenomena have not yet been systematically studied or optimized, primarily due to the complexity of the experiments. Technological applications are therefore still far removed from reality. In a recent experiment, this same group of researchers discovered a far more efficient way to create a previously observed metastable, superconducting-like state in K3C60 using laser light.

     (via sciencedaily.com)     Original source 

Researchers developed a nanostructured light diffuser that provides balanced lighting by diffracting blue and red light, and can be cleaned by simple rinsing with water. The diffuser consists of cheap materials and can be shaped with common tools. A protective glass coating maintains the diffuser's optical performance yet adds durability. This work might improve the visual performance of everyday lighting displays.