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כתבות אחרונות מאתר 'Phys'
Phys

Researchers call for national consortium to battle agriculture cyber threats‎

The threat of cyberattacks against American agriculture and food systems is growing, and Washington State University researchers are helping to lead a call for a national consortium of land-grant universities to study and combat the threat.

20:00
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Phys

Quantum chip holds multiple photons at once, opening path to scalable memory‎

For highly fragile quantum information systems, the ability to store quantum information is vital—but also challenging. Quantum information is transported in particles of light called photons, which often must be temporarily paused (or "stored") while other, slower quantum operations catch up. This storage must be performed on microchips as small as 1 centimeter (0.4 inches)—a distance covered by light in a few trillionths of a second. Storing photons for a microsecond would represent a massive leap forward for the capabilities of quantum chips.

20:00
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Phys

Kīlauea's swelling summit helps scientists forecast lava fountain eruptions‎

Episodic lava fountaining is a rare volcanic behavior in which repeated, hours-long bursts of molten lava and gas are spewed from volcanic vents, with quiet pauses lasting days to weeks between episodes. These lava fountains have been observed in active volcanoes in places like Hawaii, Iceland and Italy, but researchers still do not fully understand what starts, sustains or stops these individual fountain episodes.

19:45
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Phys

African antelopes spreading in New Mexico: How far could they go under climate change?‎

Majestic African antelopes known as gemsbok have been roaming the U.S. Southwest since their introduction in the 1960s and 1970s. Brought to New Mexico as a game species for hunting, gemsbok quickly settled in, expanding more than 100 kilometers (62 miles) from their introduction point. University of Illinois Urbana-Champaign researchers say that's due to their exceptional adaptations to arid conditions, which they predict will dramatically expand under climate change.

19:28
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Phys

Why faculty diversity at universities still lags far behind the changing demographics of college students‎

U.S. colleges and universities have long struggled to increase the racial diversity of their faculty.

19:28
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Phys

Some climate tipping points are being studied far more than others‎

Parts of Earth's climate system can change abruptly once warming pushes them beyond critical thresholds. The Greenland and Antarctic ice sheets, the Amazon rainforest, coral reefs and major ocean currents are all among the systems containing potential climate tipping points.

18:43
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Phys

Data centers make heat all year long—here's how the ground can hold onto it until winter‎

You have probably noticed it on a hot summer day: A basement feels cool even when the air outside is baking. The ground does not heat up and cool down as fast as the air does. A few hundred feet down, it stays close to the local yearly average all year, which can be around 50 degrees Fahrenheit (10 degrees Celsius).

18:43
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Phys

The oil market that sets today's gas prices was invented in western Pennsylvania‎

The fall of 2026 is a moment when energy takes center stage, as geopolitics unfolding far away shows up in Americans' everyday lives.

18:21
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Phys

How plant enzymes learned to tell mirror-image molecules apart‎

Many naturally occurring molecules such as menthol or limonene exist in two mirror-image forms, known as enantiomers, that look almost identical but can differ greatly in smell, taste or effect on the body.

18:21
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Phys

Global wildfires decreased during the COVID-19 lockdown, but some fires intensified without human intervention‎

When the COVID-19 pandemic brought human activity to a standstill around the world in the first half of 2020, wildfire incidents also declined by more than 12%. A new study published in Cell Reports Sustainability reveals the complex role humans play in shaping global fire patterns, both as a source of fire and in helping keep fires in check.

18:03
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