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31 articles from PhysOrg

CO2 emissions cause lost labor productivity, research shows

The planet's warming climate has led to countless changes that are affecting all of us. Droughts, hurricanes, rising sea levels and forest fires—all are now regular events in a world that saw close to 40 billion metric tons of carbon dioxide (CO2) emissions released into our atmosphere last year.

Private property, not productivity, precipitated Neolithic agricultural revolution

Humankind first started farming in Mesopotamia about 11,500 years ago. Subsequently, the practices of cultivating crops and raising livestock emerged independently at perhaps a dozen other places around the world, in what archaeologists call the Neolithic Agricultural Revolution. It's one of the most thoroughly-studied episodes in prehistory—but a new paper in the Journal of Political Economy...

Vivid gladiator fresco discovered at Pompeii

A vivid fresco depicting an armour-clad gladiator standing victorious as his wounded opponent stumbles gushing blood has been discovered in the ancient Roman city of Pompeii, Italy's culture ministry said Friday.

Shaping nanoparticles for improved quantum information technology

Particles that are mere nanometers in size are at the forefront of scientific research today. They come in many different shapes: rods, spheres, cubes, vesicles, S-shaped worms and even donut-like rings. What makes them worthy of scientific study is that, being so tiny, they exhibit quantum mechanical properties not possible with larger objects.

The impact of human-caused noise pollution on birds

Anthropogenic noise pollution (ANP) is a globally invasive phenomenon impacting natural systems, but most research has occurred at local scales with few species. Researchers in this study investigated continental-scale breeding season associations with ANP for 322 bird species to test whether local-scale predictions related to breeding habitat, migratory behavior, body mass, and vocal traits are...

Clock ticks as SpaceX builds craft for NASA

Two weeks ago, the head of NASA seemed sick of waiting for SpaceX and Boeing Co. to finish developing the capsules that are supposed to carry U.S. astronauts to and from the International Space Station.

Bacteria contradict Darwin: Survival of the friendliest

New microbial research at the University of Copenhagen suggests that 'survival of the friendliest' outweighs 'survival of the fittest' for groups of bacteria. Bacteria make space for one another and sacrifice properties if it benefits the bacterial community as a whole. The discovery is a major step towards understanding complex bacteria interactions and the development of new treatment models for...

NRL launches space weather instrument on NASA satellite

A U.S. Naval Research Laboratory (NRL) instrument aboard NASA's Ionospheric Connection Explorer (ICON) satellite will deliver unprecedented information to help scientists investigate how both terrestrial and solar weather impact the ionosphere, the ionized region of Earth's upper atmosphere. ICON launched from Cape Canaveral, Florida, Oct. 10.

Cold temperatures linked to high status

For decades, luxury retailers around the world have conveyed the message that cold temperatures are a sign of status with descriptions like "icy steel Swiss watches," "cool silk scarves" and "icy bling." But researchers have never studied whether people truly associate cold temperatures with status and luxury.

Using industrial waste as insulation for buildings

ETH spinoff FenX transforms industrial waste into a porous foam suitable for building insulation. Unlike other sustainable materials used for the purpose, this type of insulation is non-flammable and inexpensive to produce.

A psychotherapist explains why some adults react badly to young climate strikers

Young climate strikers I spoke to recently are confused and distressed about the things adults are doing. It's not just inaction during the worsening climate crisis that bothers them, but the increasingly bizarre criticism many older people throw at striking schoolchildren, in the media and elsewhere. In the absence of any meaningful attempts to restrain global carbon emissions, the direct action...