Articles tagged with Vacuum
Researchers have successfully levitated individual nanodiamonds in a vacuum, enabling the creation of extremely sensitive instruments and potentially even larger-scale quantum systems. The system combines optical, spin, and mechanical degrees of freedom, allowing for precise control over the nanodiamond's motion and spin state.
Researchers at the University of Chicago have discovered a new type of glass by studying the properties of microscopic animals, including tardigrades. The team found that these creatures can create glassy molecules under extreme conditions, leading to potential breakthroughs in electronic devices and material science.
A UCLA physicist tested dark energy theories by mimicking the vacuum of space using cold atoms. The study found no difference in the acceleration of cesium atoms when changing the location of a dense object, providing insight into how chameleon fields interact with normal matter.
NASA has developed a new technology to protect the James Webb Space Telescope from contamination, using Molecular Adsorber Coating (MAC) panels. The MAC panels capture outgassed molecular contaminants in the vacuum chamber, preventing them from affecting sensitive instrument components.
Scientists at OIST eliminated problematic pinholes in perovskite solar cells, significantly improving their lifetime and reducing thickness. The breakthrough enables more efficient energy conversion, with improved durability and potential cost-effectiveness.
A team from Disney Research and Carnegie Mellon University have devised a 3D printer that layers together laser-cut sheets of fabric to form soft, squeezable objects with complex geometries and integrated circuitry. The printer combines fabrics and wiring to create interactive objects such as bunnies, doll clothing, and phone cases.
The Integrated Science Instrument Module (ISIM) of NASA's James Webb Space Telescope withstood 116 days of extremely cold temperatures, simulating conditions found in space. The successful test ensures the telescope will function correctly at its final destination one million miles away from Earth.
Researchers at UC Davis have found a way to form oxygen in one step by using a high-energy vacuum ultraviolet laser to excite carbon dioxide. This process could be occurring naturally on Mars and Venus, where carbon dioxide dominates the atmosphere. The discovery adjusts models of planetary atmosphere evolution.
Researchers tested mechanical tissue resuscitation by applying negative pressure to induce localized TBI in swine, showing a significantly smaller area of brain contusion and reduced bleeding. The procedure appeared safe without seizures or brain deformation, with all animals surviving after five days of vacuum application.
A team of researchers from Weizmann Institute and Vienna University of Technology proposed a method to amplify vacuum fluctuations by several orders of magnitude using a transmission line. This could lead to enhanced understanding of Casimir- and Van der Waals forces, with potential applications in quantum information processing.
Researchers simulate bubble universe collisions to predict observable signatures, ruling out certain models and providing a proof of principle for the multiverse hypothesis. By producing testable predictions, the multiverse model has crossed the line between appealing story and real science.
Scientists have developed a solid-state vacuum ultraviolet lamp that emits high-energy UV light at the shortest wavelengths ever recorded. This breakthrough promises smaller, safer, and longer-lasting lamps for sterilizing medical devices and cleaning semiconductor substrates.
Researchers propose that dark energy is a dynamic quantum vacuum energy, not quintessence or phantom fields, explaining accelerated cosmic expansion. This explanation resolves the cosmological constant discrepancy and simplifies the problem compared to quintessence and phantom fields.
Researchers have designed a vacuum chamber to mimic Martian conditions, testing instruments and addressing challenges like dust. The goal is to better understand the habitability of other planets.
Researchers are developing novel systems to accurately redefine the kilogram using vacuum technology, promising a more precise and reliable measurement. The current kilogram definition relies on the International Prototype Kilogram, which has increasing discrepancies with national prototypes every 100 years.
Scientists at NIST have observed that patterning one surface with nanoscale structures increases or decreases the Casimir effect, which is necessary for making small mechanical parts and studying gravity at the microscale. The discovery challenges existing theory and opens a new path for tuning these effects.
Recent studies suggest that the speed of light may fluctuate due to ephemeral vacuum particles, which could be testable with ultra-fast lasers. Researchers propose that physical constants like speed of light are indications of total elementary particles in nature.
Researchers demonstrate acceleration of electrons by a laser in free space, a significant breakthrough with implications for fusion as a new energy source. The capture-acceleration scenario, proposed by Yu-kun Ho's group, explains how a tightly focused laser can create a channel for electrons to receive energy gain.
By changing the speed of light in an array of superconducting quantum-interference devices (SQUID), researchers can extract microwave photons from the vacuum's quantum noise. This breakthrough could help solve the riddle of the universe's birth and develop powerful quantum computers.
The NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft is undergoing rigorous environmental testing at Lockheed Martin facilities. The tests simulate extreme temperatures, vacuum, and vibration to ensure the spacecraft can operate in space.
Pitt researchers suggest a vacuum-based approach to overcome the limits of conventional silicon-based semiconductor electronics. They found that electrons trapped in a semiconductor can be extracted into air, enabling low-power and high-speed transistors.
Researchers developed a tiny vacuum channel transistor with applications in hazardous sensing, medical diagnostics, and telecommunications; the device operates at low voltages, making it competitive with semiconductor technology.
Researchers have predicted that a thin plate can be levitated using the Casimir force in certain circumstances. The repulsive force increases as the plate gets thinner, making it easier to lift, but experimental testing is needed to confirm the models.
A new study published in The Lancet found that misoprostol substantially reduces serious complications in early termination of pregnancy. Women given misoprostol were nearly a third less likely to experience one complication or more compared to those receiving placebo.
A team of researchers has created a computerized contact lens that can stream real-time information across the wearer's field of vision. The device, currently with a single pixel, could display short emails and text messages in the future.
TDRS-K is scheduled to launch in fall 2012 and will undergo environmental testing before being shipped to the launch site. The satellite's successful completion of this phase will ensure it meets its functional and performance requirements, providing reliable services to NASA's Space Network.
Scientists at Chalmers University of Technology have succeeded in creating light from vacuum by capturing photons that appear and disappear in the vacuum. The experiment confirms a fundamental principle in quantum mechanics, demonstrating the existence of virtual particles that can become real photons.
The Thermal Infrared Sensor (TIRS) has successfully completed its first round of thermal vacuum testing at NASA's Goddard Space Flight Center. The test evaluated the fully-assembled instrument at its normal operating temperature, achieving results that surpass expectations in some areas.
Researchers have developed a new technique using low-temperature plasmas to deactivate potentially harmful biomolecules, including those that can cause severe medical problems. The study's findings suggest that the effectiveness of this method may depend on the composition of the plasma.
Researchers from Jena and Graz calculated the time evolution of the vacuum decay, revealing that particles of matter and antimatter behave in a novel self-focusing way. This breakthrough increases the possibility of discovering these particles in super strong electric fields.
Researchers at Vanderbilt University have created microelectronic devices out of thin films of nanodiamond, which can operate at higher speeds and require less power than silicon-based devices. The diamond-based devices are also resistant to radiation damage and can function in extremely high or low temperatures.
Probiotic bacteria have limitations in conventional production processes. Researchers at TUM developed a gentle method using low-temperature vacuum drying, which is energy and cost-efficient. This process improves storage stability, allowing more active bacteria to remain in products until consumption.
Italian researchers created space-like conditions in a vessel to confirm the behavior of astrophysical jets, which travel at high speeds and stretch across vast distances. The study found that these jets behave according to Newtonian Dynamics, confirming successful 3D simulations.
Researchers at Stevens Institute of Technology have developed a new laser technology that can transmit data through open space, enabling high-speed free space communications. The technology uses frequency modulation to reduce environmental interference and achieve speeds of up to 100 GHz.
Scientists model vacuum breakdown to understand its implications for applications, including particle accelerators and fusion reactors. A new model reveals that the breakdown arc is triggered by an electric field tearing apart the metal surface, leading to extremely damaging effects.
Researchers discover ultrafast population switching of quantum dots in a structured vacuum, enabling photonic computers that are hundreds of times faster than electronic counterparts. The breakthrough could lead to compact computers without heat dissipation issues.
Researchers at the University of California - Los Angeles have developed a low-cost solution processing method for CIGS-based solar cells, which could provide an answer to manufacturing issues. The new method has already shown improved efficiency levels and potential for cost reduction.
The Lunar Reconnaissance Orbiter has successfully completed thermal vacuum testing at NASA's Goddard Space Flight Center, simulating extreme hot and cold conditions of space. The orbiter will carry seven instruments to provide detailed maps of the lunar surface and increase understanding of its topography and natural resources.
Researchers at the University of Calgary have successfully stored and retrieved a special type of vacuum, known as a squeezed vacuum, using rubidium atoms. This breakthrough has significant implications for quantum computing and information exchange, enabling the creation of ultra-secure codes for transmitting sensitive information.
The James Webb Space Telescope has successfully completed its preliminary design review, verifying the integrated performance of its Optical Telescope Element. The telescope, set to be the premier space observatory of the next decade, will study various phases in the universe's history.
Researchers Uzi Landman and Wei Kang show that Navier-Stokes equations can accurately describe liquid bridge behavior in realistic environments. Their study reveals the importance of molecular evaporation and condensation processes in shaping the nanobridge's shape.
Physicist Cheng Chin creates a vacuum chamber in his laboratory that can reach billionths of a degree above absolute zero, simulating the conditions after the big bang. The experiment aims to explore the formation of galaxies and understand the origin of complex structures in the universe.
Researchers found that women with fourth-degree tears were significantly more likely to have bowel problems and incontinence of stool. The study suggests that third- and fourth-degree lacerations should not be grouped together as 'severe perineal lacerations' due to differing outcomes.
Scientists at Penn State have observed extended chains of phenylene molecules that align and interact without forming chemical bonds, paving the way for controlling growth and assembly of molecules. This discovery could lead to manipulating nanostructured materials with unprecedented precision.
The U.S. Department of Energy's Princeton Plasma Physics Laboratory has awarded subcontracts worth $8 million and $4.5 million to manufacture major components for the National Compact Stellarator Experiment (NCSX), a fusion energy project aiming to advance basic science and explore innovative concepts.
Researchers have developed a method to preserve biological samples without distorting them, allowing for clearer views of lipids and other materials. The breakthrough, enabled by a unique polymer capsule, has potential applications in advancing studies of biological materials.
A new vacuum technology has been developed to control insects in solid wood packaging materials, providing an alternative to current methods. The system creates a low-oxygen environment that eliminates insects in several hours to days.
Researchers from Brookhaven and Argonne labs develop a non-destructive plasma valve to quickly contain air breaches in high-energy electron beams. The valve uses ionized gas to separate atmospheric pressure from a vacuum, allowing for faster vacuum-air separation and reduced damage to machinery.
Researchers at Oregon State University have made a breakthrough in creating crystalline thin films at lower temperatures without the need for vacuum conditions. This advance could enable the mass production of electronic devices on plastics and facilitate cheaper production of some products.
A team of students and researchers from Clemson University test eight houses in coastal South Carolina to determine the most effective hurricane retrofits. The study uses various methods, including cranes and vacuum chambers, to simulate real-life conditions and evaluate the performance of different retrofit measures.
Acceleron Electron Beam has secured a $525,000 grant from the U.S. Department of Energy to develop and commercialize a new non-vacuum electron-beam welding technique that can make welds deeper and narrower than conventional techniques, while increasing production rates and reducing costs.
Researchers have developed a semiconductor technology that converts waste heat into electricity with unprecedented efficiency. The new device, called 'thermal diodes,' operates at high temperatures and has the potential to revolutionize power generation and recovery of waste heat from power plants and automobiles.
Scientists studying Jupiter's moons using laboratory simulations and spacecraft data reveal unique chemical reactions driven by high-energy electrons and ions. The findings support the presence of frozen brine on Europa's surface and provide insights into radiation-induced processes in outer space.
A Yale study reveals that stereotactic core needle biopsy can underestimate breast cancer severity, particularly in cases of calcification and atypical ductal hyperplasia. The study found a 9.5% underestimation rate overall, with higher rates for these conditions.
Researchers at Kansas State University recommend using a small probe thermometer to check the internal temperature of the patty, which should reach 160 degrees Fahrenheit for optimal doneness. Color alone can be misleading, as premature browning can occur due to factors such as packaging and handling.