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How buying weapons can harm a country's economy
Science News

How buying weapons can harm a country's economy

Some wars are predictable. There are conflicts past and present which have been more or less expected because of economic and social conditions, a country's history or that of its neighbors.

📅 2026-10-20 21:50:01    •    Phys.org
Machine learning reveals potential warning signal for polar vortex disruptions
Science News

Machine learning reveals potential warning signal for polar vortex disruptions

The polar vortex, a swirling mass of cold air encircling the North Pole, is sometimes disrupted by sudden stratospheric warming (SSW) events, unleashing waves of frigid air that penetrate farther south than usual. Temperatures across North America and Europe drop precipitously when this happens, but such events remain hard to predict, meaning we can't easily warn people when SSW is imminent.

📅 2026-10-20 21:40:16    •    Phys.org
'Terror of kings': Why the 1066 appearance of Halley's Comet terrified the medieval world
Science News

'Terror of kings': Why the 1066 appearance of Halley's Comet terrified the medieval world

A sequence on the Bayeux Tapestry shows King Harold alongside a crowd gazing at the sky, beneath the embroidered caption Isti mirant stella ("those people marvel at the star"). Above Harold sits Halley's Comet, with ghostlike invasion boats in the border below—a Norman framing of Harold as a doomed usurper whose betrayal invited destruction.

📅 2026-10-20 21:30:01    •    Phys.org
New study reveals the high financial value of privacy in legal proceedings
Science News

New study reveals the high financial value of privacy in legal proceedings

A new Management Science study provides rare real-world evidence that people are willing to give up thousands of dollars to prevent sensitive information about their health and income from becoming public. The research, developed over five years by an international team, has now also laid the foundation for a European research project led by Ehud Guttel of the Hebrew University of Jerusalem.

📅 2026-10-20 21:20:11    •    Phys.org
Oxygen collisions show evidence of jet quenching, a signature of early-universe matter
Science News

Oxygen collisions show evidence of jet quenching, a signature of early-universe matter

New results from the STAR experiment at the Relativistic Heavy Ion Collider (RHIC) provide strong evidence that smashing oxygen nuclei together at nearly the speed of light generates a quark-gluon plasma (QGP), a type of matter that existed just after the birth of the universe. The data, just published in Physical Review Letters, show that energetic jets of particles lose energy as they traverse the hot, dense matter left in the collision's wake.

📅 2026-10-20 21:20:01    •    Phys.org
Using eyedrops in space—wearable patch offers a new approach
Science News

Using eyedrops in space—wearable patch offers a new approach

Applying eyedrops is difficult in space, where there is almost no gravity. A KAIST research team has developed a wearable patch that delivers eyedrops to the eye without relying on gravity. The research team was led by Professor Ki-Hun Jeong from the Department of Bio and Brain Engineering, in collaboration with a research team led by Professor Se Joon Woo from Seoul National University Bundang Hospital. The paper is published in the journal Sensors and Actuators B: Chemical.

📅 2026-10-20 21:00:04    •    Phys.org
From seafloor depths to fishing activity, free software brings ocean data together
Science News

From seafloor depths to fishing activity, free software brings ocean data together

For scientists studying the ocean, finding the right data can sometimes be as challenging as figuring out what to do with it. Want to know seafloor depth, the location of underwater mountains or sea surface temperatures? The information exists, but it can take considerable time and computer coding to pull it together from different sources and get it into the proper format.

📅 2026-10-20 20:40:12    •    Phys.org