Новости за 28.01.2022

Surveys that ask too many of the same type of question tire respondents and return unreliable data, according to a new UC Riverside-led study.

NASA's HERMES mission—a four-instrument suite to be mounted outside NASA's Moon-orbiting Gateway—has passed a critical mission review on Jan. 27, 2022.

Scientists repeatedly check the weather forecasts as they prepare aircraft for flight and perform last-minute checks on science instruments. There's a large winter storm rolling in, but that's exactly what these storm-chasing scientists are hoping for.

In the U.S., 52% of irrigated land is used for corn, soybean and winter wheat production. Corn and soybean are two of the country's most important crops, with 17% of corn production and 12% of soybean production coming from irrigated areas. However, the water used for this irrigation is often unsustainably pumped groundwater.  According to a recent Dartmouth-led study published in Earth's Future, using groundwater sustainably for agriculture in the U.S. could dramatically reduce the production of corn, soybean and winter wheat.

Humans experience the world in three dimensions, but a collaboration in Japan has developed a way to create synthetic dimensions to better understand the fundamental laws of the universe and possibly apply them to advanced technologies.

When it comes to being divisive, it doesn't get more literal than a wall. Walls exist as a means of separation, creating a sense of security by keeping something—or more typically someone—out. And whether it's separating Americans and Mexicans, Israelis and Palestinians, East Germans and West Germans, or any other two groups, the political divisiveness of border walls makes headlines around the globe.

Consumer sentiment fell throughout January, posting a cumulative loss of 4.8%, sinking to its lowest level since November 2011, according to the University of Michigan Surveys of Consumers.

A joint research team from the Hong Kong University of Science and Technology (HKUST) and the University of Tokyo discovered an unusual topological aspect of sodium chloride, commonly known as table salt, which will not only facilitate the understanding of the mechanism behind salt's dissolution and formation, but may also pave the way for the future design of nanoscale conducting quantum wires.

Drilling with the beam of an electron microscope, scientists at the Department of Energy's Oak Ridge National Laboratory precisely machined tiny electrically conductive cubes that can interact with light and organized them in patterned structures that confine and relay light's electromagnetic signal. This demonstration is a step toward potentially faster computer chips and more perceptive sensors.

When rain falls, it picks up pollution from streets, farms and other manmade features as it winds toward the ocean.

Sex is an expensive business, biologically speaking. Finding a suitable mate takes time and energy. Offspring are also a huge investment of resources. But sex does offer a rewarding possibility: children who are fitter than their parents thanks to new and "better" combinations of genes. Darwin realized that many animal species therefore carefully select their mates.

It's not often that the sudden appearance of a new impact crater on the moon can be predicted, but it's going to happen on March 4, when a derelict SpaceX Falcon 9 rocket will crash into it.

Preventing sexual abuse in humanitarian settings is a top priority for the World Health Organization, its chief insisted Friday, amid pressure from donors over an abuse scandal in the Democratic Republic of Congo.

Trapped ions excited with a laser beam can be used to create entangled qubits in quantum information systems, but addressing several stationary pairs of ions in a trap requires multiple optical switches and complex controls. Now, scientists at the Georgia Tech Research Institute (GTRI) have demonstrated the feasibility of a new approach that moves trapped ion pairs through a single laser beam, potentially reducing power requirements and simplifying the system.

Mountainous terrains have dynamic climates and can produce startling contrasts in precipitation. Increases in elevation can spell either more or less rainfall depending on atmospheric moisture content, general circulation patterns, and the specifics of the topography in question. But regardless of the directionality of the rainfall's gradient, such variability in precipitation can have large impacts on how rivers form, evolve, and shape the surrounding landscape. Although important, these influences... Читать дальше...

Imagine you're baking a cake, but you run out of salt. Even with the missing ingredient, the batter still looks like cake batter, so you stick it in the oven and cross your fingers, expecting to end up with something pretty close to a normal cake. Instead, you come back an hour later to find a fully cooked steak.

The University of Surrey and Space Power are tackling the problem of powering satellites in Low Earth Orbit (LEO) during their eclipse period when they cannot see the sun. By collaborating on a space infrastructure project, the joint team will develop new technology which uses lasers to beam solar power from satellites under solar illumination to small satellites orbiting closer to Earth during eclipse. The wireless, laser-based power beaming prototype will be the first developed outside of governmental... Читать дальше...

Quantum mechanical predictions challenge intuitive human thinking developed through the way that we experience the everyday world around us.

A new study published today in Science has shed light on how birds navigate back to their breeding site after flying across two continents.

An international team, including several researchers from the Max Planck Institute for Radio Astronomy in Bonn, has mapped the active galaxy OJ 287 with an angular resolution of 12 microarcseconds in the radio range. This is currently the highest resolution that can be achieved with astronomical observations. This was made possible by the technique of interferometry with very long baselines. The signals from twelve radio telescopes—one on board the Russian Spektr-R satellite—were combined. The resulting... Читать дальше...

In recent years, scientists have been able to transmit light through opaque surfaces, such as white paint or human tissue, which had once been considered impossible. However, a technique for controlled light delivery to a region inside an opaque medium has remained elusive, as well as an understanding of the fundamental limitations.

An international team including researchers from the University of Bern and the University of Geneva as well as the National Centre of Competence in Research (NCCR) PlanetS analyzed the atmosphere of one of the most extreme known planets in great detail. The results from this hot, Jupiter-like planet that was first characterized with the help of the CHEOPS space telescope, may help astronomers understand the complexities of many other exoplanets—including Earth-like planets.

Researchers have known about high-temperature superconducting copper-based materials, or cuprates, since the 1980s. Below a certain temperature (approximately -130 degree Celsius), electrical resistance vanishes from these materials and magnetic flux fields are expelled. However, the basis for that superconductivity continues to be debated and explored.

Ever stumbled upon a huge fossil on your holiday? That's what happened to me and two friends in January 2018, on a beach in Howick in the north of England,while on a geological road-trip across England and Wales. It was pure fluke, but it turned out that we had discovered the 326 million-year-old remains of a millipede-like animal of huge proportions.

Children and youth know that climate change is altering lives, environmental patterns and futures.