Phys.org news

Phys.org / CPR simulator for space use tracks the differences of blood flow in reduced gravity

The new focus on manned missions to the moon and Mars presents countless pressing challenges, including keeping humans alive in hostile environments. What happens when an astronaut or space tourist has a cardiac emergency ...

20 hours ago
Phys.org / A skull full of surprises: Discovering the evolutionary secrets of fish brains

A new study in Proceedings of the Royal Society B reveals the surprising neurological landscape of fish brains. Harvard researchers map the internal structures of ray-finned fishes' brains in 3D detail, discovering brain ...

20 hours ago
Phys.org / Inexpensive material compresses light, paving the way for photonic microcircuits in the terahertz range

A two-dimensional lamellar crystal composed of atomically thin layers of lead iodide (PbI2) could be used to manufacture a new generation of circuits that use light and mechanical vibrations (rather than electrons) to transmit ...

23 hours ago
Phys.org / Subglacial CH₄ export from the Greenland Ice Sheet linked to a mid-Holocene warm period

In a new paper, an international team led by scientists from Charles University, Czechia, has brought evidence linking widespread release of methane (CH₄)—a strong greenhouse gas—from the Greenland Ice Sheet (GrIS) to a warmer ...

20 hours ago
Phys.org / Cryo-EM imaging reveals how the body stops bleeding

For the first time, scientists at University of Leeds reveal a complex mechanism behind blood clotting. The findings, published in Science Advances, visualize a key component of blood clotting—platelet myosin—and how it is ...

21 hours ago
Phys.org / Planet 9 volunteers double known population of brown dwarfs

A new paper from NASA's Backyard Worlds: Planet 9 project announces that volunteers have essentially doubled the number of known brown dwarfs, with over 3,000 new discoveries made over the past 10 years since the project ...

21 hours ago
Phys.org / Polar vortex forecasts gain months of lead time with new climate-based method

Florida State University researchers have discovered how to accurately predict winter weather forecasts months in advance, affording sectors such as agriculture, water management, energy use and public health a longer lead ...

22 hours ago
Phys.org / Where was Baltica 616 million years ago? Paleomagnetic data offer revised answer

About 600 million years ago, the continents wandered Earth, yet to settle into their current positions. Their locations during the Ediacaran (as this time is called) have been tough for scientists to pin down. Earth's magnetic ...

21 hours ago
Phys.org / Polymer 'bristles' could help repel proteins—and germs—from surfaces in medical settings

A non-toxic coating developed by researchers at University of Toronto Engineering prevents proteins from sticking to surfaces—potentially offering a new tool in the fight against hospital-acquired infections.

20 hours ago
Phys.org / Timor green pigeon 'likely to go extinct' without urgent action, according to scientists

The Timor green pigeon, which is under pressure from hunting and habitat loss, is at serious risk of extinction and should be uplisted to Critically Endangered, according to a new study from researchers at Charles Darwin ...

23 hours ago
Dialog / 'Solar-blind' 2D heterostructure delivers 422-fold responsivity gain for UV sensing

Photodetectors remain a critical component in the development of advanced electronics and photonics, particularly in the role of signal readout through the conversion of photons into electrons. These digital imaging components ...

23 hours ago
Phys.org / Digitizing microscope slides can uncover billions of fossils for natural history

Approximately 145 million: That's the number of specimens—including plants, animals, minerals, and human artifacts—curators estimate are held in the Smithsonian National Museum of Natural History. However, these estimates ...

22 hours ago