Новости за 18.06.2024

While investigating how string theory can be used to explain certain physical phenomena, scientists at the Indian Institute of Science (IISc) have stumbled upon on a new series representation for the irrational number π. It provides an easier way to extract π from calculations involved in deciphering processes like the quantum scattering of high-energy particles.

Astronomers have performed a comprehensive chemical study of a Galactic globular cluster known as Terzan 6. Results of the study, presented in a research paper published June 11 on the pre-print server arXiv, could advance our knowledge about the properties and nature of this cluster.

Eye-contact has a significant impact on interpersonal evaluation, and online job interviews are no exception. In addition to the quality of a resume, the direction of the interviewee's gaze might help (or hinder) their chances of securing the job.

An important chapter of the history of human occupation on the coast of Brazil is being rewritten by Brazilian researchers affiliated with the University of São Paulo's Museum of Archaeology and Ethnology (MAE-USP).

An international research team used a common amino acid, tyrosine, packaged as a nanomedicine, to change the metabolism of melanoma, a deadly skin cancer, and prevent cancer growth.

Exciton-polariton lasers, renowned for their low-power operation, have long tantalized researchers with their promise for practical low-energy applications. However, until now, a clean measurement of the laser's linewidth, or spectral purity, has remained elusive.

The potential of quantum computers is currently thwarted by a trade-off problem. Quantum systems that can carry out complex operations are less tolerant to errors and noise, while systems that are more protected against noise are harder and slower to compute with.

In late 2019, the previously unremarkable galaxy SDSS1335+0728 suddenly started shining brighter than ever before. To understand why, astronomers have used data from several space and ground-based observatories, including the European Southern Observatory's Very Large Telescope (ESO's VLT), to track how the galaxy's brightness has varied. In a study out today, they conclude that they are witnessing changes never seen before in a galaxy—likely the result of the sudden awakening of the massive black hole at its core.

The exploration of mechanophores continues to expand the practical application of these molecules in materials science, organic synthesis, and pharmaceuticals due to their ability to change physically or chemically in response to force.

A coalition of environmental groups appealed a court rejection of their challenge to California's plan to build Sites Reservoir in a valley north of Sacramento, its first new major reservoir in decades.

The so-called Casimir force or Casimir effect is a quantum mechanical phenomenon resulting from fluctuations in the electromagnetic field between two conducting or dielectric surfaces that are a short distance apart. Studies have shown that this force can be either be attractive or repulsive, depending on the dielectric and magnetic properties of the materials used in experiments.

Europe experienced its coldest winter in 600 years during 1739–1740, ~4 °C cooler than the present average, also coinciding with negative temperature anomalies across North America and Eurasia. Indeed, for northern midlatitudes (35–70 °N) as a whole, it may have been the coldest season in the last 300 years.

A new UC Riverside study shows soot from large wildfires in California traps sunlight, making days warmer and drier than they ought to be.

Cryogenic damage has long presented a significant barrier to effective organ preservation, posing challenges to advancements in transplantation and medical treatments. The formation of ice crystals during freezing can compromise cellular structures, leading to irreversible damage and organ failure.

Hundreds of thousands more breeding pairs of seabirds could return to remote island archipelagos if invasive rats were removed and native vegetation restored, a new paper finds.

With more working hours and lower average base pay, the well-being of U.S. teachers continues to be worse than that of similar working adults—a consistent pattern since 2021, according to a new RAND survey.

The relationship between mother and child may offer clues to the mystery of why humans live longer lives than expected for their size—and shed new light on what it means to be human.