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Platforms such as iNaturalist and eBird encourage people to observe and document nature, but how accurate is the ecological data that they collect? A new study shows that citizen science data from iNaturalist and eBird can reliably capture known seasonal patterns of bird migration in Northern California and Nevada -- from year-round residents such as California Scrub-Jays, to transient migrants such as the Western Tanager and the Pectoral Sandpiper.

In 2021, Major League Baseball banned the usage of resin, and since batting averages have gone up. A group of researchers set out to reveal the science behind this.

A new study could lead to more widespread use of imaging technique to improve survival and prevent complications.

A team has developed an explainable AI model for automatic collision avoidance between ships.

A team has developed an explainable AI model for automatic collision avoidance between ships.

Extreme cosmic events such as colliding black holes or the explosions of stars can cause ripples in spacetime, so-called gravitational waves. Their discovery opened a new window into the universe. To observe them, ultra-precise detectors are required. Designing them remains a major scientific challenge for humans. Researchers have been working on how an artificial intelligence system could explore an unimaginably vast space of possible designs to find entirely new solutions.

Diamonds with certain optically active defects can be used as highly sensitive sensors or qubits for quantum computers, where the quantum information is stored in the electron spin state of these colour centeres. However, the spin states have to be read out optically, which is often experimentally complex. Now, a team has developed an elegant method using a photo voltage to detect the individual and local spin states of these defects. This could lead to a much more compact design of quantum sensors.

Diamonds with certain optically active defects can be used as highly sensitive sensors or qubits for quantum computers, where the quantum information is stored in the electron spin state of these colour centeres. However, the spin states have to be read out optically, which is often experimentally complex. Now, a team has developed an elegant method using a photo voltage to detect the individual and local spin states of these defects. This could lead to a much more compact design of quantum sensors.

Growing cells in the laboratory is an art that humans have mastered decades ago. Recreating entire three-dimensional tissues is much more challenging. Researchers are developing a new hydrogel-based material that makes it possible to engineer artificial skin tissues, which can serve as living three-dimensional models of human skin for better understanding and treating skin diseases.

Researchers have developed a machine learning workflow to optimize the output force of photo-actuated organic crystals. Using LASSO regression to identify key molecular substructures and Bayesian optimization for efficient sampling, they achieved a maximum blocking force of 37.0 mN -- 73 times more efficient than conventional methods. These findings could help develop remote-controlled actuators for medical devices and robotics, supporting applications such as minimally invasive surgery and precision drug delivery.

A researcher has analyzed the most frequent situations faced by football goalkeepers. The aim is to compile data to facilitate the design of more effective training. The work stresses the importance of practicing the deflections and first touch shots that are produced.

Researchers have demonstrated a way to use corn protein to improve the performance of lithium-sulfur batteries, a finding that holds promise for expanding the use of the high-energy, lighter-weight batteries in electric vehicles, renewable energy storage and other applications.

First ever supercomputer simulations of Mars with a fully molten core could explain the Red Planet's unusual magnetic field. Billions of years ago, Mars had an active magnetic field. Mysteriously, its imprint is strongest in the southern hemisphere. Researchers found that Mars could have produced a one-sided magnetic field with a fully molten core, rather than the traditional, Earth-like solid inner core setup.

A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, finding evidence that it could be a giant rocky planet shrouded in a thick, hot atmosphere. TOI-270 d is only 73 light years from Earth and could serve as a 'Rosetta Stone' for understanding an entire class of new planets.

Desalination plants, a major and growing source of freshwater in dry regions, could produce less harmful waste using electricity and new membranes.

Researchers share a model that identifies the optimal location for bowling ball placement. Employing a system of six differential equations derived from Euler's equations for a rotating rigid body, their model creates a plot that shows the best conditions for a strike. The model accounts for a variety factors, including the thin layer of oil applied to bowling lanes, the motion of the subtly asymmetric bowling ball, and a 'miss-room' to allow for human inaccuracies.

Researchers share a model that identifies the optimal location for bowling ball placement. Employing a system of six differential equations derived from Euler's equations for a rotating rigid body, their model creates a plot that shows the best conditions for a strike. The model accounts for a variety factors, including the thin layer of oil applied to bowling lanes, the motion of the subtly asymmetric bowling ball, and a 'miss-room' to allow for human inaccuracies.

Ambisonic rendering is a way to simulate the precise locations of sounds in 3D, and an ambisonics algorithm has allowed researchers to create rich virtual 'soundscapes.'Researchers decided to test the limits of ambisonic sound reproduction through their 'AudioDome' loudspeaker array. Humans' spatial acuity is high in front of our faces but decreases around the sides of our head, and the researchers' experiments obtained very similar results from listeners in the AudioDome, proving that the loudspeaker array can reproduce sound locations at a spatial scale beyond the human limits of perception.

A decades-long stretch of extremely low precipitation in the 1500s may have spurred cultural changes among the Rapa Nui people that reduced time spent building statues, but not all archaeologists agree

Our Sun, like all stars, is made mostly of hydrogen and helium. They are by far the most abundant elements, formed in the early moments of the Universe. But our star is also rich in other elements astronomers call "metals." Carbon, nitrogen, iron, gold, and more. These elements were created through astrophysical processes, such as supernovae and neutron star collisions. The dust of long-dead stars that gathered together into molecular clouds and formed new, younger stars such as the Sun. Stars rich in metals. But there are still stars out there that are not metal rich. These extremely metal-poor stars, or EMPs, hold clues to the origin of stars in the cosmos.