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Phys.org / Prehistoric fossil poses puzzles in shark research

A newly examined prehistoric shark from the age of dinosaurs provides surprising insights into the early evolution of modern sharks. It cannot be confidently assigned to any shark order that exists today and thus calls into ...

1 hour ago in Biology
Phys.org / Proton's width measured to unparalleled precision, narrowing the path to new physics

Physicists in Germany have carried out the most accurate measurement to date of the width of the proton. By examining a previously unexplored energy-level transition in the hydrogen atom, Lothar Maisenbacher and colleagues ...

6 hours ago in Physics
Tech Xplore / Ultrafast 3D printing method creates complex objects in under a second

High-speed 3D printing has just gotten a lot faster. Researchers from Tsinghua University in China have developed a new high-speed printing technology capable of creating complex millimeter-scale objects in just 0.6 seconds. ...

2 hours ago in Engineering
Phys.org / World's smallest QR code, read via electron microscope, earns Guinness recognition

Just how small can a QR code be? Small enough that it can only be recognized with an electron microscope. A research team at TU Wien, working together with the data storage technology company Cerabyte, has now demonstrated ...

1 hour ago in Nanotechnology
Phys.org / Double white dwarf system detected in a nearby stellar cluster

Using the Very Large Telescope (VLT), astronomers have discovered a compact binary system consisting of two white dwarfs in the center of a nearby globular cluster designated NGC 6397. The finding was presented in a paper ...

6 hours ago in Astronomy & Space
Tech Xplore / The giant fire tornado that could save our oceans

In the frantic hours following an offshore oil spill, emergency responders face a destructive decision: let the oil spread or ignite it. Once ignited, it creates an "in-situ" fire pool that stops the oil from spreading and ...

3 hours ago in Engineering
Phys.org / Nanoengineers realize an on-chip excitonic hyperlens

When light passes through materials, it typically changes direction and bends in predictable ways. This change in direction, known as refraction, is caused by a change in the speed of light as it enters a new medium. In some ...

7 hours ago in Nanotechnology
Tech Xplore / Hydrogen-bond networks boost all-perovskite solar cell efficiency

The use of solar cells, devices that can convert sunlight into electricity, has grown exponentially over the past decades. These devices are enabling the production of clean and renewable energy, which could contribute to ...

6 hours ago in Engineering
Phys.org / Otters as ocean doctors: How a 40-year watch on Brazil's coasts reveals hidden threats to estuaries

For 40 years, scientists have been monitoring the Neotropical otter (Lontra longicaudis) along the southern coast of Brazil. A study published in Estuarine Management and Technologies reveals that these charismatic mammals ...

2 hours ago in Biology
Medical Xpress / A potential new lymphedema target: Clearing cholesterol deposits to reduce swelling

An international team led by National University of Singapore researchers has linked secondary lymphedema to excessive cholesterol buildup inside skin and around lymphatic vessels. Excess cholesterol deposition tracked with ...

7 hours ago in Immunology
Medical Xpress / AI-powered liquid biopsy can classify pediatric brain tumors with 92% accuracy

Liquid biopsies, which test body fluids that contain cancerous material, including circulating tumor DNA (ctDNA), are a noninvasive way to learn about a cancer's biology. However, technological limitations with the small ...

2 hours ago in Oncology & Cancer
Phys.org / Science on the double: How an AI-powered 'digital twin' accelerates chemistry and materials discoveries

Understanding what complex chemical measurements reveal about materials and reactions can take weeks or months of analysis. But now, an AI-powered platform developed by researchers at the Department of Energy's Lawrence Berkeley ...

2 hours ago in Chemistry