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Phys.org / Wildfires reverse decade of ozone cleanup in the United States, study reveals
Ozone pollution has worsened in much of the continental United States over the past decade, fueled by wildfires and the long-distance transport of unhealthy air, according to a new study titled "Fires reverse progress toward ...
Phys.org / Jupiter bow shock reveals electrons accelerating to relativistic speeds
Electrons around Jupiter have been caught in the process of being accelerated, revealing a potentially unified mechanism for particle acceleration. The findings, published in Nature, may help constrain how energetic particles ...
Phys.org / Ultrathin nanotubes reach 1 nanometer, opening path to smaller electronics
Researchers in Japan have created some of the world's smallest semiconducting nanotubes, structures 100,000 times thinner than a human hair. By growing molybdenum disulfide inside protective tubes of boron nitride, the researchers, ...
Tech Xplore / Standalone 'leaf' produces liquid fuel from sun, water and CO₂ with record efficiency
A Yale-led research team has developed the first standalone device that produces the liquid fuel methanol using only sunlight, water, and carbon dioxide as the ingredients. The artificial "leaf," like its namesake in nature, ...
Phys.org / Most people cooperate—and underestimate others' willingness to cooperate, global study reveals
The study "Homo cooperans: Understanding the nature of human cooperation" arrives at a clear result: 69% of study participants chose to cooperate. At the same time, the study published in the journal Science shows that people ...
Phys.org / Buoys track ocean waves across 14,000 km, from storms in Antarctica to ripples in Alaska
For the first time, mighty ocean waves generated in the Southern Ocean have been accurately measured all the way to the tiny ripples they form on the shores of Alaska. Professor Ian Young, from the University of Melbourne's ...
Phys.org / Billions are going into fish passage projects, but planning methods can undercut results
Fish that split their lives between fresh and salt water often face obstacles getting back and forth. Dams and roads fracture river networks and interfere with traditional migratory routes, sparking concerns about fish health ...
Phys.org / Easily overlooked small wetlands are a big source of global methane
Waterlogged land areas such as marshes, bogs and fens are the world's largest natural source of methane. Even the smallest of wetlands emit this powerful greenhouse gas. In a study from The University of Texas at Austin, ...
Tech Xplore / From waste wood to load-bearing feature, a simple calculation could change the way we use 'misfit wood'
Urging industry to make better use of wood that is wasted or burned for energy, researchers have released the first structural tests of non-straight, forked, and double-curved roundwood logs used as columns. In his mission ...
Phys.org / Polyphenol structures reveal why tea, cocoa and fruit compounds taste so different
A pilot study has developed a new sensory evaluation method that links the chemical structures of polyphenols with their distinct taste properties. Using trained human panelists, researchers showed that different polyphenols ...
Phys.org / Milky Way black hole's missing wind finally found after a half-century-long search
The hunt is over. After more than 50 years of searching, astrophysicists at Northwestern University have finally discovered evidence of a powerful wind blowing from the Milky Way's central supermassive black hole, Sagittarius ...
Phys.org / 'Out-of-place' rocks reveal how a young ocean formed
Deep below the Tyrrhenian Sea offshore Italy, scientists drilled into what they thought would be dark mantle rock—and found pieces of granite that seemingly had no business being there. Those unexpected intrusions turned ...
