ניווט נגישות
כתבות אחרונות מאתר 'Phys'
Phys

An echo of Einstein: An unexpected link between whale calls and special relativity‎

Standing on the sandy, windswept shores of Provincetown, Massachusetts, people may find themselves squinting at the horizon, waiting for a whale to make its grand entrance with a spectacular breach.

17:03
תפריט כתבה
Phys

Scientists give aircraft composite waste a second life‎

Researchers from the National University of Singapore (NUS) have developed a method to turn waste from the tough, lightweight composites used in aircraft and other high-performance structures into aerogels that could be used for thermal insulation, sound absorption and oil spill cleanup.

17:03
תפריט כתבה
Phys

Reusing liquid pickle waste to produce omega-3 fatty acids‎

Docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) are omega-3 fatty acids known to have beneficial effects and are popular as functional foods and dietary supplements. They are polyunsaturated fatty acids (PUFAs); the primary source of these PUFAs for humans is fish oil.

16:56
תפריט כתבה
Phys

Quantum simulators gain quantitative error bars in 51-ion test‎

In the coming years, increasingly larger and more powerful quantum systems are expected to tackle problems that are difficult or impossible to solve using conventional computers. However, the more powerful quantum simulations become, the more difficult it is to independently verify their results. Where classical simulation is still feasible, results can be cross-checked directly; beyond that regime, other methods are needed.

16:46
תפריט כתבה
Phys

Why many birds add fresh plants to their nests remains unclear despite signs of healthier offspring‎

As they build their nests, many birds are known to interweave dried grasses and other materials with green plants, such as fresh leaves, grass stems, herbs and aromatic leaves. While this behavior is well documented, why many bird species choose to add fresh plants has remained unclear.

16:43
תפריט כתבה
Phys

New design method stabilizes human growth factor for potential therapeutic use‎

A new study published in the Biophysical Journal reports on the development of a stable, biologically active version of the human fibroblast growth factor. Human fibroblast growth factor, or FGF, has potent wound-healing and antidiabetic properties that could prove useful in the development of new therapeutics.

16:43
תפריט כתבה
Phys

Neutron capture experiment sheds light on ancient stardust‎

Niobium-94, an isotope of niobium with 41 protons and 53 neutrons, is a critical crossroads in the complex nuclear processes that forge heavy elements under the intense pressures and temperatures of dying stars. In an article published in Physical Review Letters, the n_TOF Collaboration reports the first-ever measurement of the probability of niobium-94 taking one of the paths at this crossroads—that is, undergoing neutron capture.

16:25
תפריט כתבה
Phys

Sea cucumber breeding clues could help rebuild populations depleted by overfishing‎

The reproductive life of sea cucumbers has come under the microscope as University of the Sunshine Coast researchers battle overfishing of the marine creatures. Sea cucumbers—which can spawn by wobbling their heads and ejecting reproductive cells—are of particular interest to Center for Bioinnovation Ph.D. student Paul Wright.

16:25
תפריט כתבה
Phys

Volcano myths unravel, from 'smoke' plumes to Yellowstone catastrophe claims‎

Volcanoes emit smoke. Beneath a volcano lies a huge chamber filled with liquid magma. A series of earthquakes means an eruption is imminent. And if a "supervolcano" like Yellowstone were to awaken, a global catastrophe would be upon us. These are images and ideas that regularly crop up in news reports, documentaries and on social media.

16:05
תפריט כתבה
Phys

Are subsea oil and gas pipelines a previously unrecognized source of ocean microplastics?‎

Decommissioning pipelines used by the oil and gas industry could result in substantial quantities of microplastics being released into the UK's marine environment annually, a new study suggests.

16:05
תפריט כתבה
דיווח על כתבה זו הסתרת כתבות מאתר זה המשך קריאה באתר המקור