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כתבות אחרונות מאתר 'Phys'
Phys

Amazon's carbon clock is speeding up, and violent storms may be only part of why‎

Tropical forests store more than 60% of the world's vegetation biomass and are among the most important ecosystems for regulating the global carbon cycle and climate. However, their regulatory role is greatly influenced by the forests' carbon residence time—how long carbon remains in the vegetation biomass pool before it is released again into the atmosphere. This figure is tied to the rate of biomass turnover—how quickly vegetation is replaced through growth and mortality.

12:02
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Phys

After winter storms, fires now threaten Portugal's forests‎

In a forest of pine and eucalyptus trees in central Portugal, chainsaws and diggers hum away clearing paths blocked by trees uprooted in winter storms, but the threat now is a high risk of summer fires.

11:46
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Phys

A rare sanctuary in Congo looks after baby bonobos away from poaching threat‎

Micheline Nzonzi cradled a small and sleepy bonobo, an orphan whose life she will try to save over the next three years or so.

11:46
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Phys

Ten years on, the Nagoya Protocol on sharing genetic resources is still confusing scientists—guidance now available‎

More than a decade after the Nagoya Protocol, which aims to fairly share the benefits of utilizing genetic resources, became law, microbiologists and other scientists still face practical challenges and confusion. A new guide published by a team of European microbiologists provides universally applicable frameworks for anyone working with biological resources.

08:20
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Phys

The cinema effect: Turning films into a gateway to science‎

The sci-fi film Project Hail Mary, currently in theaters, is capturing the attention of both audiences and the scientific community for its science-based content. It manages to engage viewers with complex, cutting-edge topics—from astrophysics to language—without sacrificing entertainment. Yet not all films strike this balance. Many have promoted inaccurate or even misleading scientific ideas, and, thanks to their wide reach, have contributed to shaping distorted public perceptions of science.

07:04
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Phys

Image: Australia's cloudy beauty‎

It's autumn in the Southern Hemisphere, which means it's fog season in the Victorian Alps. NASA's Terra satellite captured this view of morning fog filling valleys in several national parks across the mountains of eastern Victoria in May.

06:41
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Phys

Why was an Egyptian mummy stuffed with a fragment of Homer's Iliad?‎

Archaeologists have found something unexpected inside a 1,600-year-old Roman-era Egyptian mummy: a fragment of Homer's Iliad. It wasn't placed beside the body, but inside the mummy's abdomen. But the real surprise isn't just where the fragment was found. It's how it got there. To understand, we must go back—to the Iliad itself, and to what it became in the Roman world.

05:37
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Phys

Iodine deficiency is creeping back. Vegans, vegetarians and pregnant women are most at risk‎

Iodine deficiency is often seen as a problem of the past, but this isn't entirely true. During the 20th century, the iodization of salt became one of the most effective public health interventions for preventing conditions caused by a lack of this mineral, including goiter (enlargement of the thyroid gland) and preventable damage to neurological development.

04:26
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Phys

Study identifies geysers the JUICE mission could explore on Ganymede‎

Ganymede, Jupiter's largest moon, is also the solar system's largest satellite, even larger than the planet Mercury. It is also the only celestial body aside from Earth (and the gas giants) to have an intrinsic magnetic field. As if this didn't make the icy body interesting enough, scientists also predict that it has a massive interior ocean with more water than all of Earth's oceans combined. At present, the European Space Agency's (ESA) Jupiter Icy Moons Explorer (JUICE) is in transit to Ganymede to explore it for signs of habitability.

03:42
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