ניווט נגישות
כתבות אחרונות מאתר 'Phys'
Phys

Climate change boosts soybean production but worsens bean quality‎

A study published by Food Research International analyzed the triple effect of climate change on soybean quality—increased carbon dioxide (CO₂), high temperatures and drought. Using predictive modeling powered by artificial intelligence (AI) and based on experimentally verified data, the study assessed how these pressures would affect the beans. It concluded that the seeds would change their composition, producing 50% more beans but of lower nutritional quality.

03:22
תפריט כתבה
Phys

Bat rays employ a chemical cue to warn others of danger‎

Frightened bat rays produce a chemical cue to warn other rays of danger, a well-known anti-predator strategy for bony fish that has not been documented in cartilaginous fish until now. Oregon State University researchers found the behavior of bat rays changed when they received water flow from a tank where another bat ray was frightened by a mock predator, suggesting that a chemical disturbance cue was passed from one tank to the other.

01:39
תפריט כתבה
Phys

Sonic booms from meteors can release the energy of hundreds of tons of TNT. Here's how they work‎

As humans, we live out our lives on a planet that is constantly sweeping through a cosmic ocean littered with ancient debris from the formation of the solar system. For the most part, our world glides silently through space, shielded by Earth's thin atmosphere.

00:32
תפריט כתבה
Phys

Crane pair dances follow hidden rules, with performances revealing partner-driven timing‎

Animal pairs engage in mutual signaling by simultaneously performing a diverse repertoire of behaviors. A famous example is the sophisticated dance (mutual displays) performed by bird pairs.

00:11
תפריט כתבה
Phys

Sunday is the longest day of the year for half the planet. A guide to the summer solstice‎

This is the sun's time to shine: Sunday is the longest day of the year in the Northern Hemisphere.

23:33
תפריט כתבה
Phys

Jumping gene caught moving between species in first direct observation‎

Genes are not passed on exclusively from parents to their offspring. Some are mobile and can also jump to other species, as researchers at the Max Planck Institute for Marine Microbiology in Bremen have now shown. The direct observation of a jumping gene provides the first evidence that such genes can transfer from one species to another—from predator to prey. The study is published in the journal Scientific Reports.

23:15
תפריט כתבה
Phys

Ancient enamel just exposed a hidden human family entanglement that may still echo in your DNA‎

An analysis of ancient teeth is giving scientists a rare peek into interactions between human relatives hundreds of thousands of years ago that have left a lasting imprint on our species.

22:43
תפריט כתבה
Phys

Radio scans find no alien tech from the latest interstellar comet‎

The group leading the charge in the search for extraterrestrial life has given the all clear: An interstellar comet looks to be completely natural and free of any alien tech.

22:43
תפריט כתבה
Phys

Quantum gravity research links continuous parameters to local operators within the theory itself‎

A researcher at Kyushu University and his collaborators have shown that continuous parameters in quantum gravity may not be freely adjustable "dials" from outside the theory, but rather arise from operators within the theory itself, supporting the century-old claim by Albert Einstein about the fundamental laws of nature.

22:13
תפריט כתבה
Phys

Eight ways to sleep well in hot weather‎

When temperatures rise, sleep often suffers. Hot nights can make it harder to fall asleep, increase waking during the night and leave people feeling less rested the next day.

21:42
תפריט כתבה
דיווח על כתבה זו הסתרת כתבות מאתר זה המשך קריאה באתר המקור