General Physics 16 hours ago

World War One dazzle camouflage was not as well understood as it might have been, researchers suggest

Researchers from Aston University and Abertay University have found that World War One dazzle ships—vessels painted in a type of camouflage pattern to make it difficult for enemies to identify and destroy—weren't as effective ...

Analytical Chemistry 20 hours ago

Liquid water molecules are inherently asymmetric: New insight into the bonds between water molecules

Icebergs float on water because the underlying liquid water has a higher density than the iceberg. Liquid water itself has its highest density at 4°C—one of the so-called anomalies of water, i.e. properties of liquids ...

Archaeology 21 hours ago

Ancient texts reveal how Mesopotamian humans experienced emotions in their bodies

From feeling heavy-hearted to having butterflies in your stomach, it seems inherent to the human condition that we feel emotions in our bodies, not just in our brains. But have we always felt––or at least expressed––these ...

Astronomy Nov 30, 2024

Cosmological model proposes dark matter production during pre-Big Bang inflation

As physicists continue their struggle to find and explain the origin of dark matter, the approximately 80% of the matter in the universe that we can't see and so far haven't been able to detect, researchers have now proposed ...

Other Dec 4, 2024

Best of last year: The top Phys.org articles of 2024

It was a good year for space science as Sumner Starrfield, an astronomer at Arizona State University, described what was to appear as a huge star exploding in the night sky, in a once-in-a-lifetime event this past fall. A ...

Condensed Matter Nov 29, 2024

Researchers uncover link between quantum information theory and particle and condensed matter physics

Theoretical physicists have established a close connection between the two rapidly developing fields in theoretical physics, quantum information theory and non-invertible symmetries in particle and condensed matter theories, ...

Ecology 17 hours ago

Unique microbial communities discovered beneath frozen surface of Antarctica's Lake Enigma

An international team of polar researchers has found several types of microbiota living in the water below the frozen surface of Antarctica's Lake Enigma. In their study, published in the journal Communications Earth & Environment, ...

Soft Matter Nov 28, 2024

Tiny rotating particles create vorticity in viscous fluids, yielding fascinating new behaviors

Vorticity, a measure of the local rotation or swirling motion in a fluid, has long been studied by physicists and mathematicians. The dynamics of vorticity is governed by the famed Navier-Stokes equations, which tell us that ...

Archaeology Dec 4, 2024

Neanderthals were making hand stencil rock art more than 66,000 years ago, U-series dating suggests

A discovery deep within a cave in Spain has challenged the history of human artistic expression. Researchers have determined that hand stencils in Maltravieso Cave are more than 66,000 years old, suggesting that Neanderthals, ...

Astronomy Dec 2, 2024

Evidence of primordial black holes may be hiding in planets, or even everyday objects here on Earth

Imagine the formation of a black hole and you'll probably envision a massive star running out of fuel and collapsing in on itself. Yet the chaotic conditions of the early universe may have also allowed many small black holes ...

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