A new diffraction spectrometer uses a webcam and diffraction grating to achieve sub-picometer accuracy in laser tuning. The instrument is simple enough for undergraduate physics labs, providing training in optics and the wave nature of light.
Researchers found that mosquitoes struggle to fly in heavy fog, despite their ability to withstand raindrops. The study reveals that the tiny fog particles overwhelm the mosquito's gyroscopic sensors, leading to flight failure.
Owls' unique wing structure and plumage have inspired researchers to create quieter conventional aircraft. By studying the owl's ability to fly silently, scientists hope to develop aircraft with reduced noise levels, benefiting both humans and wildlife.
Scientists develop a device that can form and control sound bullets in water, with potential uses for underwater imaging and biomedical applications. The device, inspired by Newton's cradle, focuses high-amplitude pressure pulses into compact sound bullets that can be tightly focused on a target area.
Researchers describe a new method for invisibility cloaking using ocean floor topography to shield floating objects from waves. By manipulating internal waves, objects can be protected from surface waves, offering potential benefits for offshore structures and fishing.
Researchers have developed a super hydrophobic coating that prevents water from sticking to an airplane's surface, reducing the risk of ice formation. The coating, containing microscopic particles of Teflon-based material, reduces energy needed to detach water, making it easy to remove.
Researchers reveal that a soccer 'knuckleball' shot causes a zigzag trajectory due to aerodynamic lift forces, not deformations at the site of impact. The study sheds light on the phenomenon's unpredictability and potential role in historic experiments trying to prove the Earth's rotation.
Researchers study 'The Cheerios Effect' to understand colloidal self assembly and its applications in pharmaceuticals, telecommunications, and more. The team uses acrylic shapes and laser cutting to visualize particle motion related to meniscus dynamics.
Researchers found that ethanol-based liquids mix actively with water, unlike pure gasoline, posing a significant threat to aquatic life. The study's findings could impact response guidelines for biofuel spills and highlight the need for further investigation into ethanol's environmental effects.
French physicists study Venus fly trap's leaf snapping mechanism, shedding light on its rapid closure. They use microfluidic pressure probe to measure cell wall elasticity and osmotic pressure, helping understand the botanical bite.
Researchers created a model of penguin huddles that assumes each penguin aims to minimize its own heat loss, surprisingly revealing an equitable sharing of heat. The study found that even in self-centered behavior, the system relies on others for shelter, leading to fair outcomes.
Researchers use atomic layer deposition (ALD) technique to create thin, transparent oxide films that protect silver surfaces from hydrogen sulfide, reducing the need for frequent polishing and coating applications. The new method has potential to preserve historically important artifacts without damaging them.
Researchers have developed biodegradable iron-doped silica spheres to tag breast tumors, reducing the need for follow-up surgeries by up to 50%. The particles can be used to destroy tumor tissue with high-intensity focused ultrasound therapy, improving surgical precision and patient trauma.
Researchers at UIUC create novel system to examine and measure nanoscale thermal conductance at material interfaces. They use molecular chains with different chemical groups to observe heat flow at the atomic scale.
Researchers from NREL demonstrated a solar cell with external quantum efficiency exceeding 100 percent, producing up to 30% more current than conventional technology. This breakthrough harnesses the power of multiple exciton generation (MEG) to reduce heat loss and increase electrical energy.
Researchers have developed tunable-refractive-index materials for solar cells, enabling customizable antireflection coatings to improve efficiency. These coatings are compatible with current manufacturing processes and show great promise for future generations of antireflection technology.
Researchers have successfully created near-atomically flat silicon surfaces, a breakthrough that could pave the way for new biological and chemical sensors. The team's innovative process uses computer simulations and infrared spectroscopy to create flat surfaces with alternating single-atom-wide rows.
T-cells use protein signals to communicate with each other, with specific patterns and squishiness preferred. The discovery may help improve T-cell activation for immunotherapy and cancer treatment.
Researchers have developed 'nanobowls' to shield metal catalysts from harsh conditions during biofuel refining. The nanoscale structures can be tailored to enhance functionality and specificity, showing promise for improving the efficiency of biofuel conversion.
Researchers developed a new production process called carbon nanotube templated microfabrication (CNT-M) to create stronger microstructures for MEMS applications. By replacing air spaces with a filler material, they enhanced the durability of vertically aligned carbon nanotubes.
Researchers at the University of Texas at Austin have created an acoustic navigation system that can locate open doors inside burning buildings. The system uses a parametric array to create focused sound waves that can penetrate moderate-sized flames, providing firefighters with vital information to navigate safely.
Researchers estimate that the ocean was even louder 200 years ago due to whales' vocalizations. New data suggest that human-generated noise in modern oceans is just a small increase compared to natural whale sounds.
Research suggests that perfect pitch is associated with a large memory span for speech sounds, facilitating early associations between pitches and spoken languages. Musically trained individuals from non-tonal languages can acquire absolute pitch, but it remains a rare talent.
Researchers have developed self-powered sensors that can harness heat from nuclear reactors to transmit data, addressing a critical monitoring issue. The sensors use thermoacoustic technology, exploiting the interaction between heat and sound waves to operate without electronic power or moving parts.
Researchers found that earthquakes generate most of their sound by pumping the atmosphere like a loudspeaker. This discovery has significant implications for assessing damage in the immediate aftermath of an earthquake, as infrasound can reveal important details about ground shaking.
A new damping technique has been developed to combat painful vibrations in baseball bats, targeting the sweet spot where vibrations between 600-700 Hz cause pain. The technique involves a mass-spring device that quickly eliminates these painful oscillations, reducing shock and discomfort for players.
Researchers from the University of Nebraska – Lincoln played quarter-second-long white noise clips to test subjects working on arithmetic problems. The researchers found that louder noises caused lower performance and higher levels of annoyance, with sound level ranges affecting participants' perceptions.
Researchers predict that global warming will acidify saltwater sufficiently to make low-frequency sound travel twice as far as it currently does. This could lead to a clearer understanding of the sound environment of marine mammals and the effects of human activity on their habitats.
Researchers created a simplified model of the brain and skull inside a helmet during a collision, illustrating how fast vibrational motion translates to sloshing brain motion. The study aims to improve helmet design for better brain protection, with potential futuristic helmets that crumple on impact like plastic car bumpers.
Researchers discovered that water droplets can form sharp ice peaks when freezing, due to the water's expansion as it freezes. As the droplet solidifies, the resulting ice peak attracts water vapor in the air, creating a unique tree-like structure on its surface.
An international team of researchers has developed a way to manipulate cells using fluid flow patterns generated by mechanical oscillations in a microfluidic channel. This technique combines the precision of direct physical contact with the speed of non-contact methods, allowing for high-level control over individual cells.
A research team at Intel Corp. has developed a long-lasting ultrahigh-density probe storage device by coating probe tips with a thin metal film, reducing wear and increasing the device's lifetime to over 8 kilometers. The device features an array of 5,000 ultrasharp probes that write tiny bits of memory as small as a few nanometers.
Researchers used information theory to identify DNA introns and exons, achieving an order of magnitude speedup over previous methods. This breakthrough can help better understand the human genome and predict diseases linked to DNA.
Researchers used Active Shape Model to simulate fluid forces acting on breast cancer cells in blood flow. The study aims to develop new therapies targeting metastasis by understanding mechanical properties of cancer cells.
A new silicone model makes it possible for researchers to intuitively understand protein structures, positions, and interactions. The model allows users to test ideas about molecular interactions and simulate docking maneuvers, which can lead to innovation in drug design.
Researchers create super-sensor using nanoscale gold spheres to detect single samples of the smallest known viruses. The sensor uses 'whispering gallery mode' to measure precise frequency changes, allowing for accurate detection and sizing of viruses.
Researchers discovered that pollutant particles accumulate in specific areas of the urban environment, forming coherent structures. This finding can help generate maps to identify high-pollution zones and inform strategies for mitigating pollution.
A team of scientists proposes a new theory of evolution that combines emergent fitness landscape and curl flux to explain evolutionary dynamics. The theory provides a physical foundation for general evolution dynamics, offering insights into the Red Queen Hypothesis and the benefits of sexual reproduction.
Researchers create superhydrophobic coatings to repel water and fog from glass and other transparent materials. The coatings offer improved anti-fogging and light transmittance properties, paving the way for clearer windshields, windows, and solar cells.
Researchers have developed a new method for describing extremely complicated shapes, bridging topology and fractals. The persistent homology theory will aid in investigating and describing complex structures found in nature, such as defects in metals and wave froth.
A team of scientists discovered that cloud seeds can pick up molecules even when they don't collide directly with the clusters. The finding has significant implications for understanding atmospheric chemistry processes such as ozone depletion.
A team of researchers has developed a novel method to search gene sequences and identify similar proteins across different kingdoms of life. They found that Actinobacteria, a group of single membrane bacteria, is the last universal common ancestor of all living species.
An international research team has developed a new nanocrystallography technique that captures 3D images of biomolecules in action using the Linac Coherence Light Source X-ray laser. This method allows scientists to study molecules at room temperature without radiation damage, enabling the creation of atomic-scale resolution models.
At the annual meeting of crystallographers, researchers presented groundbreaking studies on X-ray laser technology, deep-sea bacteria's pressure tolerance, and molecular mechanisms underlying bacterial resistance to antibiotics. The discoveries have significant implications for fields such as medicine, genomics, and material science.
A research team at UNC Chapel Hill has discovered a molecular mechanism that allows bacteria to transfer antibiotic resistance. By inhibiting the interaction between two protein loops and the plasmid DNA, researchers may be able to develop new antibiotics effective against drug-resistant bacteria.
A Japanese research team identified a structural change in a protein that confers pressure-resistant properties on deep-sea bacteria. This finding may help guide the design of enzymes for use in high-pressure chemical industrial processes, exploiting the unique adaptation mechanisms of these organisms.
Researchers have designed an ultracapacitor that maintains a near-constant voltage, enabling its use in low-voltage electric vehicle circuits and handheld electronics. The device achieves this through an electromechanical system that slowly lifts the core out of the electrolyte solution as charge is released.
Researchers in the Journal of Renewable and Sustainable Energy analyze China's emerging energy trends, finding increased bioenergy utilization but still dispersed biomass resources. A study on cooking fuel transition suggests universal access to modern fuels could be achieved in urban areas by 2030 for a relatively low cost.
Scientists generate attosecond bursts of extreme ultraviolet light, allowing them to measure electron dynamics in real-time. This breakthrough could lead to new technologies, including more efficient solar cells and better drugs.
Researchers demonstrate carbon nanotube-based integrated circuits that work under low supply voltages, producing less heat and extending Moore's Law. The results offer promise for increasing circuit density without overheating.