Phys.org news

Phys.org / The year 1740 was the coldest in Central Europe in 600 years: Study seeks to answer why

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 ...

Jun 18, 2024 in Earth
Phys.org / Research investigates chemical composition of globular cluster Terzan 6

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 ...

Jun 18, 2024 in Astronomy & Space
Phys.org / Restored rat-free islands could support hundreds of thousands more breeding seabirds

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.

Jun 18, 2024 in Biology
Phys.org / Physicists find a new way to represent π

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. ...

Jun 18, 2024 in Physics
Phys.org / Astronomers see a massive black hole awaken in real time

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 ...

Jun 18, 2024 in Astronomy & Space
Phys.org / Physicists combine multiple Higgs boson pair studies and discover clues about the stability of the universe

Remember how difficult it was to find one Higgs boson? Try finding two at the same place at the same time. Known as di-Higgs production, this fascinating process can tell scientists about the Higgs boson self-interaction.

Jun 18, 2024 in Physics
Phys.org / 250-million-year-old fossil seen anew with modern technology

Details of an ancient cousin of modern-day mammals are being revealed for the first time. Hi-tech scanning of an ancient fossil, which was captured in sandstone around 252–254 million years ago, is giving experts valuable ...

Jun 18, 2024 in Biology
Phys.org / New study finds at least 1 in 4 US residential yards exceeds new EPA lead soil level guideline

Roughly one in four U.S. households have soil exceeding the new U.S. Environmental Protection Agency's lead screening levels of 200 parts per million (ppm), halved from the previous level of 400 ppm, a new study found. For ...

Jun 18, 2024 in Earth
Phys.org / Researchers discover the world's oldest wine in Rome

A white wine over 2,000 years old, of Andalusian origin, is the oldest wine ever discovered.

Jun 18, 2024 in Other Sciences
Phys.org / Study proposes novel hypothesis to explain occupation of Brazil's southern coast 2,000 years ago

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).

Jun 18, 2024 in Other Sciences
Phys.org / Ultra-high spectral purity revealed in exciton-polariton laser

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, ...

Jun 18, 2024 in Physics
Phys.org / Look to women for sustainable livestock farming bordering the Amazon rainforest, says study

When trees and livestock compete for land, the trees usually lose. It doesn't have to be this way. But centrally designed plans to implement tree-livestock coexistence in deforested areas don't always work on faraway farmland.

Jun 18, 2024 in Biology