Articles tagged with Speed
Researchers from the University of Rhode Island studied the interaction between tornado-strength winds and highway overpasses, finding no evidence of wind acceleration under an overpass. The study, published in Physics of Fluids, suggests that using an overpass as a shelter during a tornado may not be safer than other options.
Researchers discovered a significant impact on executive functioning, processing speed, and memory encoding in patients treated for COVID-19. Cognitive impairments persisted several months after the initial infection.
Researchers have discovered a new technique to locate the diffusion wake's signal in the quark-gluon plasma, a subatomic soup that flowed like a friction-free fluid after the Big Bang. This breakthrough may help scientists understand how matter emerged from this perfect fluid.
University of Virginia researchers design a simple way to implement a tunable stiffness strategy in robots, enabling efficient swimming at varying speeds. The approach, inspired by the natural adaptability of fish, uses a programmable artificial tendon to adjust tail stiffness in real-time.
Researchers from University of California - Santa Barbara create model to couple dynamics of landslides and tsunami generation, predicting wave amplitude based on initial column geometry and water depth.
Quantum nonlocality is a universal property that prevails regardless of particle speed or indeterminacy. Researchers designed an experiment to test this phenomenon, using the principle of physical phenomena being independent of frame of reference, to prove nonlocality for any quantum particle.
Researchers discovered how Janus particles relate to nearby barriers, showing velocities are influenced by physical properties of charged boundaries. This study could help engineer micromotors for complex biological environments, including drug delivery and nano-surgery.
Researchers found that swirlonic super particles move with constant velocity, proportional to applied force, violating Newton's Law. This phenomenon has practical applications in artificial intelligence, space data, and robotics, particularly in self-assembly.
Researchers found that European free-tailed bats rely on orographic uplift and wind conditions to fly high and fast during nighttime forays. The bats' flight patterns show a predictable relationship with the landscape, using the same types of areas where winds sweep up a slope to carry them to high altitudes.
Researchers directly observed C+S2 product channel from CS2 photodissociation using Dalian Coherent Light Source. The study provided evidence for the origin of interstellar medium S2 fragments and demonstrated that they could be generated from CS2 photodissociation
Osaka University researchers created light bullets with controllable velocities, opening up opportunities for free-space communication, bio-imaging, and particle acceleration. By deforming pulse-fronts, they can achieve variable velocities during a single propagation path.
A Cornell University-led collaboration has created a new 3D printing technique that produces cellular metallic materials at supersonic speeds, resulting in mechanically robust and porous structures. These structures are 40% stronger than similar materials made with conventional manufacturing processes.
A new time dilation phenomenon, known as quantum time dilation, has been predicted by researchers combining quantum mechanics and Einstein's theory of relativity. This effect can impact high-precision atomic clocks, leading to corrections in their accuracy.
Researchers from Lancaster University found that exotic particles stick to all surfaces in the superfluid, enabling objects to move at high speeds without destroying the fragile state. This discovery may guide applications in quantum technology and quantum computing.
A study by Hong Kong Baptist University found that slow-moving tropical cyclones bring about 20% more rainfall, resulting in increased flood risks in the region. The research also identified a correlation between slower moving speeds and higher rainfall volumes.
Researchers at Nara Institute of Science and Technology have developed a new family of nanocars that can move in the nanoworld with high speed and control. The nanocars are made up of dipole molecules, which will enable applications such as transporting reactants or drugs.
The deep ocean is warming at a slower rate than the surface, with climate velocity accelerating to 11 times the present rate in waters between 200-1000 metres by the end of the century. This poses huge challenges for protecting areas and mitigating threats to deep-sea life.
Researchers at Oregon State University found that people can correctly infer a robot's personality from its movement alone, with Happy and Sleepy being rated as most polite. The study suggests that robot personality can positively impact tasks around people, boding well for integration into simple robots
Climate scientists predict that human-caused warming will cause a significant slowdown in hurricane motion, particularly in populated mid-latitude regions. This could result in more damage from storms lingering over an area, like Hurricane Dorian, which had a translational speed of just 1.3 mph.
Researchers found that drones arrived faster than ambulances in Brooklyn during peak rush hour, with average response times of 6.48 minutes and 9.54 minutes respectively. The study suggests that drones could be used to deliver life-saving medications or interventions in emergency situations.
A recent proposal aims to test Einstein's twin paradox using quantum particles in a 'superposition' state. The goal is to measure time passing at different speeds for objects moving at high velocities or near massive objects.
Researchers at Newcastle University discovered that stripes can conceal speeding prey in miniature cinema experiments with praying mantises. The study found that narrow stripes were harder for the mantises to spot when moving at fast speeds.
Tropical Storm Gabrielle's strongest side was identified by NASA's Aqua satellite on September 8, 2019. The MODIS image showed strongest thunderstorms northeast of the center with fragmented bands south and southwest of the center.
Tropical Storm Gabrielle has become a post-tropical cyclone over the eastern Atlantic, with heavy rainfall and high winds expected. The storm is forecast to weaken into a remnant low tonight before slowly strengthening into a tropical cyclone by the weekend.
The GPM core satellite found a band of heavy rainfall north and east of Tropical Storm Gabrielle's center, falling at over 40 mm/h. The storm is expected to continue its northwestward motion through Saturday with increasing forward speed.
A research team devised a novel mechanism to transport droplets at record-high velocity and distance without extra energy input. The new strategy uses surface charge density manipulation to achieve unidirectional and self-propelled liquid droplet transportation on diverse substrates.
Scientists found that ice on Greenland's ice sheet slides across hard bedrock at high speeds, moving more ice than previously thought to the ocean. This discovery suggests the ice sheet can efficiently respond to climate change and potentially increase melting.
Researchers at MIT have designed surfaces that cause droplets to bounce away from surfaces, reducing contact time and area of impact. The new method focuses on minimizing the spatial extent of contact, creating a bowl-shaped splash pattern that redirects droplets upward and prevents icing or soaking.
A new method of condensation, using lubricant-infused surfaces (LIS), has been found to promote more efficient heat transfer and droplet movement. The erratic movement of water droplets is caused by unbalanced capillary forces acting on the droplets.
Foam collapse occurs via two distinct mechanisms: 'propagating' mode, where a film is absorbed into the surrounding liquid, and 'penetrating' mode, where droplets release from a rupture event break other bubbles. Understanding these mechanisms can help tailor foams to specific applications.
The study found that the Palu earthquake propagated unusually fast, identifying it as a supershear. Supershear earthquakes release more energy in a shorter time due to the rapid movement of the rupture along the fault.
A study by Penn State researchers found that setting speed limits below engineering recommendations leads to an increase in fatal and injury crashes. Lowering speed limits by 10-25 miles per hour resulted in a decrease in property damage-only crashes, but drivers often ignore lower speed limits
A new study by University of Texas at Austin researchers links sediment movement to continental drift speed, suggesting a key role for feedback mechanisms. The findings challenge existing ideas on plate interaction and may explain variations in plate speeds, such as India's rapid northward acceleration.
Tropical Storm Xavier has strengthened in western Mexico, bringing heavy rainfall and potentially severe flooding to the region. The storm is expected to weaken over the next few days, but not before producing significant swells along the southwestern coast.
Researchers develop autonomous drone system that collaboratively maps terrain under dense forest canopies without GPS, enabling more efficient searches for lost hikers. The system uses LIDAR and path-planning software to fuse individual drone maps into a global 3D map, facilitating human rescuers.
Hurricane Leslie has a ragged banding eye surrounded by a central dense overcast. The storm is accelerating east-northeastward, moving into a stable environment where it will weaken over cooler waters.
Researchers measured oxygen consumption, heart rate, and ventilation during recovery among Spanish division one and two soccer players. The study found second division players took longer to recover from maximum effort exertion compared to first division players.
A study by Duke University researchers shows that slow and steady animals actually have a faster average speed over their lifetimes than fast but erratic ones. The analysis also applies to modern aircraft design, where jet fighters are surprisingly slow when averaged over their service lifetime.
Researchers at the University of Michigan demonstrated the effectiveness of connected cruise control, which uses vehicle-to-vehicle communication to adjust speed and improve safety. The technology reduced braking force by 60% and saved energy by up to 19% compared to human-driven vehicles.
A new study from MIT reveals that the brain uses both speed and rhythmic patterns to track objects in motion, leading to more accurate estimates. Researchers found that participants made better predictions when they had access to information about both speed and timing.
Researchers at ITMO University developed a system to measure red blood cell velocity using high-speed video recording. The system provides accurate data for diagnosing vascular conditions and assessing therapy efficiency, offering a reliable tool for disease pattern recognition.
Chemists at LMU München have developed a new synthesis to reduce the speed of a molecular motor, allowing them to analyze its light-driven rotation in complete detail. This breakthrough enables the study of unidirectional motion and opens up potential applications in catalysis and smart materials.
NASA analyzed Tropical Storm Jose using Aqua satellite data, detecting strong thunderstorms with cold cloud top temperatures indicating potential for heavy rainfall. The storm is forecast to strengthen and become a hurricane by Friday.
Researchers map galaxy motions to locate denser matter in clusters and filaments, revealing the cosmic velocity web's structure. The new definition provides strong confirmation of gravitational attraction's role in universe development.
Researchers found that exposure to slow-motion clips altered perceptions of real-life movement, making it appear too fast. Drivers may experience velocity re-normalization, taking time to adjust to slower speeds after high-speed conditions.
Tropical Storm Greg is intensifying with near 60mph winds and forecast to become a hurricane by Sunday. The storm absorbed moisture from the remnants of Tropical Depression 8E.
Researchers found that geckos don't always have enough adhesive ability to save themselves, especially when encountering unexpected falls. The study's results could lead to a better understanding of how geckos stick to surfaces and potentially inspire new technologies.
Researchers found that variable advisory speed limit systems can decrease average queue length by 39-53% and increase safety with a 30% drop in rear-end collisions, while also reducing maximum speed differences and lane changing conflicts.
Researchers at Kumamoto University have derived a new theoretical formula to predict the wetting and spreading behavior of droplets on flat surfaces. The formula allows for quantification of the maximum wetted area of droplets after collision, influencing equipment quality and efficiency.
MIT engineers detailed the hydrodynamics of archer fish's jump, revealing its unique propulsion system. The study aims to improve underwater vehicle design and could lead to the development of spyhopping vehicles.
A team of students has demonstrated that water-filled balloons can be made to bounce on a bed of nails, exhibiting similar behavior to tiny water droplets. The study, published in the European Journal of Physics, used large store-bought party balloons and recorded impacts at different velocities.
A new study from the University of Tennessee reveals that Brazilian free-tailed bats can reach remarkable flight speeds, challenging existing assumptions about their capabilities. The research used a novel airplane tracking method to track the bats' flight patterns, demonstrating that they adapt to wind conditions like airplanes and birds
Physicists at PPPL have developed a real-time velocity diagnostic that measures plasma velocity in four locations within the National Spherical Torus Experiment-Upgrade. This device enables rapid calculations of how the velocity profile of ions evolves over time, which is crucial for optimizing plasma stability and fusion reactions.
Hurricane Nicole strengthens as it approaches Bermuda, with a large eye detected by NASA's GOES Project. The storm is expected to pass near or over Bermuda on Thursday, Oct. 13, with maximum sustained winds near 100 mph and higher gusts.
Hurricane Gaston is a Category 3 hurricane with maximum sustained winds near 115 mph, located about 575 miles east of Bermuda. The storm is expected to move over decreasing sea surface temperatures and into increasing vertical wind shear, causing a gradual weakening.
New research reveals that continental breakup proceeds through a two-phase speed evolution, where initial slow extension is followed by rapid acceleration. This process can lead to the formation of rifted continental margins with enhanced faulting and volcanic activity.
Researchers studied animal puncturing methods, including snakes' venom-injecting strikes, mantis shrimp's harpooning prey, and stinging sea creatures' microscopic nematocysts. The study found kinetic energy was the best predictor of penetration depth, with smaller animals often being faster to achieve this
Researchers discover a new way to view complex groups of atoms in motion using coherent X-rays, revealing voids and nanocolumns that form during thin film production. This technique improves the quality of commercial applications such as solar panels and drug delivery systems.
Researchers develop a closed formula to reduce motion blur in camera images by optimizing flutter shutter codes for any probability density of expected scene velocities. The formula links optimal codes with velocity distributions and surpasses the previously-established 1.17 bound gain for known velocities.
Researchers at University of Wisconsin-Madison discovered that people with excellent 3D vision are more susceptible to motion sickness while using virtual reality displays. The study found that these individuals are also better at judging the direction of moving objects, which may contribute to their discomfort.