Articles tagged with Speed
A team of psychological scientists found little evidence to support speed reading as a shortcut to understanding and remembering large volumes of written content. Effective skimming is a more effective approach when interested in getting the gist of what's being read.
Scientists at PTB have successfully measured the anomalous velocity in a GaAs semiconductor with sub-picosecond time resolution, providing new insights into its microscopic origins and potential applications. The study enables the distinction between intrinsic and extrinsic contributions to the anomaly.
Tropical Storm Rick is being closely monitored by NASA's Aqua satellite as it moves west-northwest towards the eastern Pacific. The storm has maintained a minimal strength of around 35 knots with surface winds confined to a small area.
Tropical Depression Nora is experiencing strong vertical wind shear from the southwest, pushing clouds and showers east of its center. The storm's maximum sustained winds were near 30 mph on October 15, 2015, with forecasters predicting it will continue moving northwest before taking a more westerly track.
Scientists have developed a new technique to measure the speed of internal waves below the ocean surface using a single satellite image. This allows for more accurate information to be obtained from satellites, enabling researchers to track ocean currents and objects moving on or below the surface.
Researchers found that the brain processes motion from both visual and tactile inputs using similar computations, integrating information from individual neurons with a small perspective of the object. This common representation of motion can be seen in experiments using plaid stimuli presented visually or tactilely.
RapidScat analyzed Tropical Storm Henri's surface winds on Sept. 8, revealing tropical-storm-force winds north and east of the center. The storm's wind speed is expected to increase as it moves over warm water, potentially strengthening before weakening.
NASA's GPM and NOAA's GOES satellites provide insights into Tropical Storm Erika's rainfall patterns and cloud structure. The storm is expected to approach the Leeward Islands on Wednesday night, prompting a Tropical Storm Watch for several Caribbean islands.
Scientists discovered that the size of particles doesn't matter for ring formation and that the abundance of larger particles drops off due to surface forces. The team's model showed that the size distribution in planetary rings is universal, supporting a hypothesis that it follows the same laws as Saturn's rings.
Hurricane Dolores is a category 3 hurricane with maximum sustained winds near 115mph, affecting Mexico's Revillagigedo Islands and generating rough surf. The storm is forecast to weaken gradually over the next 24 hours before moving into colder waters.
Tropical Storm Dolores has lingered off Mexico's southwestern coast, bringing a tropical storm watch for several regions. Maximum sustained winds near 65 mph are expected to produce 2-4 inches of total rain accumulation along the coast.
Typhoon Nangka weakened to typhoon status after reaching maximum sustained winds of 126.6 mph, with its strongest winds observed on the western side at over 67 mph. The storm is expected to move west-northwest while steadily weakening before re-strengthening.
A new study from Arizona State University has revealed the causes of stress-corrosion cracking in metal alloys, leading to a deeper understanding of how to design crack-resistant materials. The research team's findings suggest that certain metals can fracture at high speeds, threatening the mechanical integrity of critical infrastructure.
Hurricane Andres has weakened significantly due to unfavorable sea surface temperatures, with maximum sustained winds decreasing to near 105 mph. The storm is expected to become a tropical storm tonight or Wednesday, followed by a turn toward the north and a decrease in forward speed.
Researchers identified 200 previously unknown compact elliptical galaxies using public archives of data from the Sloan Digital Sky Survey and the GALEX satellite. Of these, 11 isolated compact galaxies were found moving faster than their cluster counterparts
The Suomi NPP mission team successfully repositioned the satellite on September 30 to avoid a close approach with a debris object traveling at nearly 17,000 mph. The maneuver was planned after a high-risk assessment, and the team's quick action prevented potential catastrophic damage to the satellite.
Researchers at Technische Universität Darmstadt confirm time dilation and observe spectral lines in highly charged bismuth ions, achieving unprecedented precision. The experiments test the limits of Einstein's theories under extreme conditions, providing new insights into quantum electrodynamics.
Researchers at MIT have created a robotic cheetah that can run at high speeds using an algorithm inspired by the biomechanics of real cheetahs. The robot's legs are programmed to exert a certain amount of force in the split second during which it hits the ground, allowing it to maintain speed and stability.
The Van Allen Probes have found a two-fold process that accelerates particles in the radiation belts, with an initial boost followed by electromagnetic waves called Whistlers. This mechanism helps explain how electrons reach intense speeds, damaging spacecraft and affecting astronauts.
Tropical Storm Fausto strengthened quickly after forming as Tropical Depression Six-E on July 7. Satellite imagery shows the storm being pursued by a developing area of low pressure to its east, with NOAA's GOES-West satellite capturing the scene.
A new study has found that six massive glaciers in West Antarctica are losing ice at an unprecedented rate, causing global sea levels to rise. The amount of ice draining from these glaciers increased by 77 percent between 1973 and 2013, with Pine Island Glacier accelerating by 75 percent over the same period.
Recent advances have enabled electric vehicles (EVs) to achieve sustained speeds of over 180 miles per hour and establish world speed records above 300 mph. EVs have inherent advantages in efficiency and torque, with energy storage-to-torque being above 90 percent efficient compared to less than 35 percent for internal combustion engines.
Researchers from Mexico provide a mathematical model that accurately depicts Usain Bolt's record-breaking 100m sprint time, revealing a terminal velocity of 12.2 meters per second and average force of 815.8 newtons. The study highlights the challenges of overcoming air resistance and drag, showcasing Bolt's remarkable power output.
Researchers analyzed data from 100 instrumented vehicles and found that occasional seatbelt users are more likely to buckle up for trips on high-speed roads. The study suggests that perceived convenience plays a significant role in seatbelt use, with drivers opting out of wearing belts during local errands.
A coronal mass ejection erupted from the sun on January 31, 2013, leaving the sun at speeds of around 575 miles per second, which is a fairly typical speed for CMEs. This event had historically mild effects but could cause geomagnetic storms if it connects with the outside of the Earth's magnetic envelope.
A Sun coronal mass ejection occurred on January 23, 2013, at a speed of around 375 miles per second, impacting the magnetosphere. The event caused a space weather phenomenon called a geomagnetic storm, potentially affecting GPS and satellite communications.
A coronal mass ejection (CME) with speeds of 375 miles per second reached the sun's surface in November 2012, marking the third Earth-directed CME since November 20. The event may cause geomagnetic storms and auroras near the poles, but is unlikely to disrupt electrical systems or GPS communications.
Tropical Storm Maria is experiencing strong wind shear that is limiting its rainfall to the east of its center. The low-level center of the storm is now exposed, and with cooler sea surface temperatures, the combination is expected to dissipate by October 19.
Tropical Storm Gaemi experienced strong northeasterly wind shear, causing a large oval-shaped area of showers and thunderstorms to form southwest of the storm's center. The storm's speed increased as it moved westward, forecasted to make landfall south of Hue, Vietnam on October 6.
Tropical Storm Oscar's clouds and showers were primarily southeast of its center due to wind shear. The storm is expected to dissipate late Oct. 5 as strong southerly winds batter it.
Tropical Storm Oscar is being battered by strong northwesterly wind shear, with NASA's Aqua satellite capturing images of the storm's clouds and showers southeast of its center. The National Hurricane Center expects Oscar to dissipate late on Oct. 5, 2012.
A study published in Veterinary Record compares the athletic abilities of humans and animals, finding that greyhounds, cheetahs, pronghorn antelope, and other species outrun and outmuscle top athletes. Human adaptations for endurance are impressive, but animals excel in speed, strength, and power.
Researchers found cheetahs' longer strides and faster stride frequencies allow them to reach high speeds, while greyhounds maintain a constant stride rate. The study suggests wild cheetahs may be able to outstrip their captive cousins due to biomechanical differences.
NASA's Goddard Space Flight Center detected a new solar active region, AR1504, which fired off two M-class flares and two coronal mass ejections (CMEs) on June 13-14, 2012. The CMEs are traveling towards Earth at speeds of 375 and 800 miles per second.
A team of researchers found that seaweeds employ two distinct strategies to reduce drag: 'shape changers' fold and collapse, while 'area reducers' compress their fronds through branch reorientation. This study sheds light on the complex relationship between flexibility, size, and shape changes in seaweeds.
Scientists have analyzed the speed of over 200 Greenland outlet glaciers, finding they are moving at a slower rate than previously thought. The study suggests that the rate at which these glaciers can dump ice into the ocean is limited, with a possible contribution of only four inches to sea level rise by 2100.
A new study shows Greenland's contribution to rising sea levels may be less than expected due to a 30% speedup in outlet glaciers. This means the ice sheet could contribute up to nearly 19 inches of sea level rise by 2100, but long-term behavior is still uncertain.
New research reveals that runaway planets exist and can reach speeds of up to 30 million miles per hour, outpacing most objects in the Galaxy. These hypervelocity planets are produced by double-star systems interacting with supermassive black holes.
Researchers have developed novel dual solidification mechanisms for a ternary Fe47.5Cu47.5Sn5 peritectic-type alloy, enabling the effective synthesis of advanced materials. The mechanisms involve peritectic solidification at moderate undercoolings and macroscopic phase separation at greater undercoolings.
A small tropical storm, Tropical Storm 11P, has formed in the South Pacific Ocean and is approaching the main island of Tonga. The storm has maximum sustained winds of 35 knots and is moving quickly to the east-southeast at 21 knots.
At around 2 meters per second, running makes better use of a key calf muscle than walking, increasing efficiency and conserving energy. This discovery sheds light on why speed walking is generally confined to the Olympics.
A team of scientists has discovered the fastest-rotating massive star ever recorded, with a rotational velocity of 600 kilometers per second. The star, VFTS 102, is extremely hot and luminous, having been ejected from a double star system by its exploding companion star.
Researchers found that alternating between learning and unlearning an unusual walking pattern on a split-belt treadmill improved relearning speed. The standard approach of repetitive practice may not be the most effective way to help patients recover from stroke or other injuries.
Researchers have developed a new model to evaluate seismic wave velocities at shallow depth in the Seattle Basin, offering refined seismic hazard assessments. The study also exposes two faults in the eastern Sierra Nevada, providing new details about active faulting in the area.
The University of Arizona space systems engineer Roberto Furfaro and his colleagues have designed an autonomous guidance system that will fly the privately-funded Moon Express lander to the lunar surface. The $30 million X Prize is won by landing a spacecraft on the moon, deploying a robot, and sending back an image and data to Earth.
The Buckeye Bullet team, with the Ohio Supercomputer Center, is developing a new electric land speed vehicle to surpass 400 mph. They're using computational fluid dynamics and large-scale simulations to optimize the aerodynamic design and minimize shock waves.
Researchers found that virtual reality (VR) and physical reality exercises can increase movement speeds in PD patients, especially when moving targets are provided. The study shows promising results for VR as a tool to improve movement in persons with PD, similar to the benefits of physical reality cues.
Harbour seals use their whiskers to sense shapes and sizes of objects in murky water. The team found that the seal could distinguish between paddles with different widths and shapes, including triangular, cylindrical, flat, and undulating paddles. This ability may help seals optimize energy intake while hunting.
Researchers designed a soft-bodied robot, GoQBot, inspired by caterpillar ballistic rolling to achieve fast wheeling behaviors. The robot's unique movement mimics the caterpillar's ability to rapidly curl into a wheel and propel itself away from predators.
Researchers at Ruhr-University Bochum successfully visualized distinct activity patterns overlaid in primary visual cortex, indicating simultaneous encoding of object orientation and motion direction speed. This breakthrough demonstrates the brain's ability to process multiple visual cues simultaneously.
Researchers have developed racetrack memory, which uses magnetic tape and spin-polarized currents to store data at speeds of several hundred meters per second. This technology could enable computers to boot up instantly and access information 100,000 times more rapidly than traditional hard disks.
Researchers at Oregon State University have developed a new method to produce nanoparticles 500 times faster than traditional methods, using an arrayed microchannel reactor and laminated architecture. This breakthrough could make nanotechnology products more commercially practical and environmentally friendly.
NASA's Aqua satellite captured visible image of Hurricane Julia, weakened by Hurricane Igor's outflow, breaking a record for the most intense hurricane east of the Azores. The storm is expected to move west-northwest then turn northeast, staying at sea.
Physicists at Oregon State University have discovered a way to use gallium arsenide nanodevices as signal processors at 'terahertz' speeds, enabling faster optical communication and computing. This breakthrough could lead to applications in secure codes and communications, video and audio processing, and even quantum computing.
Researchers have directly observed the instantaneous velocity of tiny Brownian particles, contradicting Einstein's long-held prediction. This breakthrough uses optical tweezers to trap and measure glass beads suspended in air, validating the equipartition theorem.
This BSSA tip sheet documents the long history of earthquake monitoring by the Southern California Seismic Network (SCSN), detailing its evolving sensitivity over time. Researchers also examine the predictive capability of models to estimate ground shaking during large earthquakes in the San Francisco Bay Area.
A new study published in the Journal of Applied Physiology suggests that human running speeds can exceed 28 mph due to limitations imposed by muscle fiber contractile speed. Researchers found that elite sprinters' foot-ground contact times are brief, implying a biological limit on how quickly muscles can generate forces.
A recent study published in BSSA found that certain types of subduction zones exhibit lower earthquake production rates, contradicting previous assumptions. The research suggests that the efficiency of earthquake production is influenced by fault slip rate and relative plate velocity.
A driving simulation test involving 67 people with mild to moderate Parkinson's disease and 51 healthy individuals found that those with Parkinson's were more likely to crash in foggy conditions. Their reaction time was also longer, averaging 2.7 seconds compared to 2.1 seconds for healthy drivers.
Researchers measured the motion of stars in a distant galaxy and found they are moving at incredible speeds, contradicting expectations of small galaxy size.