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כתבות אחרונות מאתר 'Phys'
Phys

World's oldest shipwreck discovered off coast of Turkey‎

A shipwreck off the coast of Turkey is the oldest shipwreck in the world, our team of archaeologists believes. There's little left of the ship itself, but based on clues from its cargo—including pottery vessels—a research team I was part of has tentatively dated the wreck to around 2700–2400 B.C.

03:49
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Phys

What a worm's brain can teach us about sex differences in the nervous system‎

Ever wonder what goes on inside the brain of a worm—how it processes information, responds to stimuli and perceives the world around it? Northeastern University researchers have opened up that can of worms, specifically the one containing C. elegans, a tiny roundworm that's one of the most extensively studied animals in biology.

00:46
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Phys

How one of Earth's worst volcanic disasters affected societies in prehistoric Japan‎

A new international study led by Lund University examines what happened to population levels after the Kikai-Akahoya volcanic eruption in prehistoric Japan. The results paint a more complex picture than what had previously been believed. The paper is published in the journal Science Advances.

23:14
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Phys

Simulations explore nuclear mitigation of asteroid threats‎

Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.

22:14
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Phys

Quantum magic state cleanup cuts errors 40-fold in first successful hardware test‎

Qubits, the quantum equivalent of digital bits, are fragile and prone to errors. That makes building reliable quantum computers extremely difficult. One fix has been to use traditional magic state distillation, which filters out flaws, but it is extremely resource-intensive.

21:17
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Phys

What an ancient volcanic eruption teaches us about resilience today‎

When a massive environmental disaster strikes, do societies simply collapse and disappear? Or do people find a way to adapt, rebuild and recover?

20:23
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Phys

Hand-cranked device tells blood type and red cell levels in 1 minute‎

When someone is badly injured, doctors urgently need two facts: the patient's blood type, so that a transfusion is safe, and their hematocrit, the share of the blood made up of red blood cells, which reveals blood loss or anemia. Hospitals measure both with large machines that need electricity and trained staff, which are often unavailable in ambulances, disaster zones or remote clinics.

19:09
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Phys

Salt crystals could hold clues to life beneath Enceladus's ice‎

The ocean beneath Saturn's moon Enceladus lies under kilometers of ice, but some of its contents do reach the surface. Jets near the south pole spray out water vapor and icy particles, offering a way to investigate the hidden ocean without drilling down to it.

18:46
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Phys

Australian scavengers don't just eat everything and slink away. They approach a carcass like a buffet‎

When scientists talk about scavengers, you might imagine an animal sniffing out or stumbling across a carcass, eating as much as possible and slinking away.

18:05
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