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Phys.org / Traces of nearly 4 million coins reveal how Rome achieved economic integration
For centuries, the study of ancient history relied primarily on interpreting classical texts and examining inscriptions and archaeological remains at their sites of origin or in museums. In recent years, however, a little-known ...
Phys.org / 'Power of disorder' tames CF₄, a semiconductor greenhouse gas that can persist for 50,000 years
Among the gases used in semiconductor manufacturing, tetrafluoromethane (CF₄) is a greenhouse gas more than 6,000 times as potent as carbon dioxide.
Medical Xpress / Trump and RFK Jr.'s health industry deals haven't been enforced and are at risk of vanishing
In the thick of his competitive reelection race in Michigan, Republican Rep. Tom Barrett joined Health and Human Services Secretary Robert F. Kennedy Jr. at a sprawling 400-acre (162-hectare) apple orchard, farm and winery. ...
Tech Xplore / Bleach and salt water boost power in grid batteries, moving from side reaction to center stage
To create large-scale grid energy storage that is more affordable, powerful and safe, researchers at the Department of Energy's (DOE) Oak Ridge National Laboratory (ORNL) decided to let a strong side reaction step into the ...
Tech Xplore / Researchers develop new heatsink using additive manufacturing
Engineers at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, are developing a new thermal-management capability to help manage heat in systems where space and weight are limited.
Phys.org / Global warming will exceed limit, UN says in a report that maps path to get back below danger zone
In a strategic retreat in the fight against climate change, the United Nations has acknowledged that Earth has lost its chance to prevent some of the worst of global warming's harms. So now the world must figure out how to ...
Phys.org / Faint far-infrared radiation drives a correlated insulator-to-metal transition in magic-angle graphene
One of the central ideas in modern physics is the phase transition—a sudden transformation of the state of a material. We encounter phase transitions throughout everyday life: water freezes into ice, wax melts in the warmth ...
Phys.org / Organic crystal reveals how Joule heating stabilizes resistive switching
Metal-insulator transitions (MITs), in which a material changes from a metallic state with low resistivity to an insulating state because of a change in an external parameter, such as temperature, pressure or an electric ...
Phys.org / Scientists put algae to work making fuel. AI reveals which cells are pulling their weight
Algae have a habit of turning up where they're not wanted. They coat your swimming pool in green gunk, cling to rocks at the beach and even make headlines when they take over prominent reservoirs, such as the White House ...
Phys.org / Human-driven fires have shaped the Amazonian forest for over 10,000 years
New research is dismantling the longstanding myth of the "pristine" Amazon. A reconstruction of 10,000 years of Amazonian pyrogeography, based on 1,361 radiocarbon (¹⁴C) dates across 303 sites—including soil charcoal and ...
Phys.org / Physicists finally put Feynman's path integral to the test
For nearly 80 years, physicists have relied on a thought experiment created by Richard Feynman to predict how quantum particles behave. For the first time, researchers in China have tested this trick directly in the lab.
Phys.org / Light reveals internal motion in electron crystals and can trigger their melting
Electrons, particles that carry a negative electric charge, typically move through materials. At low densities and temperatures, however, the electrical repulsion between them can overpower their tendency to move, prompting ...
