Phys.org news

Phys.org / Nitric oxide overload jams plant immune signals, researchers find

A new study from the University of Kentucky Martin-Gatton College of Agriculture, Food and Environment (CAFE) helps explain how plants can lose track of their own disease warnings.

18 hours ago
Phys.org / Tanzania's iconic heritage sites face damage from state-backed tourism

Assessment of four heritage sites in Tanzania finds that all are under threat from the institutions meant to steward them, prioritizing income from tourism over the sites' preservation and refusing to engage with community ...

19 hours ago
Phys.org / Dynamic nanogates let longer molecules pass faster through flexible pores

A research team led by Professor Shuichi Hiraoka at the University of Tokyo and Professor Masanori Tachikawa at Yokohama City University has quantitatively analyzed how molecules pass through dynamic nanoscale pores using ...

18 hours ago
Phys.org / A new capability to detect chemical weapons involves two existing methods

In the aftermath of suspected chemical attacks, investigators from the Organization for the Prohibition of Chemical Weapons (OPCW) step in to collect chemical, environmental, and biomedical samples. Thorough forensic laboratory ...

18 hours ago
Phys.org / Why doesn't coffee taste like caffeine?

Though decaf fans might disagree, caffeine is a critical component of a cup of joe. This compound is incredibly bitter on its own, but regular coffee itself is not. A team reporting in the Journal of Agricultural and Food ...

20 hours ago
Dialog / Research could pave the way for more resilient winter cereals in warmer climates

The arrival of winter marks not only a change in weather, temperature, and day length, but also a change in our activity and behavior. The social outdoor events and trips to the beach over summer soon become a distant memory, ...

19 hours ago
Phys.org / Brightness 'gap' in ancient star cluster reveals missing red dwarfs

Scientists from the Space Telescope Science Institute (STScI) in Baltimore, Maryland, sought to study one stellar subject and ended up finding something even more exciting. The team's results published today in Astronomy ...

21 hours ago
Phys.org / We can predict space weather—what if we could also stop it?

The weather on Earth can get pretty messy sometimes. But in space, it can be wild, and the effects can be far-reaching. Solar flares, giant explosions on the sun, can send out streams of energy that block radio communications ...

21 hours ago
Phys.org / Nanomagnets control diamond qubits, pointing to more scalable quantum hardware

Quantum computing, once only a theoretical possibility, promises to deliver faster, more energy-efficient computers—but only if scientists can build and scale the hardware needed to run the machines. New research from Virginia ...

21 hours ago
Phys.org / Thundering footsteps warn caterpillars of lethal ladybeetle attacks

Diminutive warty birch caterpillars (Falcaria bilineata), less than 1.5mm long, ardently defend their leaf tip homes from invading caterpillars by scraping and pounding the leaf to warn off potential invaders. But how might ...

20 hours ago
Phys.org / Arctic river deltas face rising climate pressure while holding vast frozen carbon reserves

Many rivers flow into the Arctic Ocean north of the Arctic Circle—including the Lena in Siberia and the Mackenzie River in Canada. The deltas of these large and small rivers store large amounts of carbon, which is bound there ...

21 hours ago
Phys.org / Temperature gaps help sneeze clouds stay denser and travel farther, experiments show

When a person coughs or sneezes, they expel a cloud of microscopic particles capable of carrying viruses and bacteria that act as vectors for respiratory diseases such as flu, COVID-19 or tuberculosis. Understanding how these ...

20 hours ago