Search results for advanced imaging

General Physics 16 hours ago

Researchers probe features of star clusters surrounding supermassive black holes

At the center of the galaxy, millions of stars whirl in orbits around a supermassive black hole. This circuit can take anywhere from a few hours for stars close to the event horizon of the black hole to thousands of years ...

Biochemistry 12 hours ago

Study unveils the intricate way two proteins interact to promote cell movement, metastasis

When cells in our bodies need to move—to attack an infection or heal a wound, for example—cellular proteins send and receive a cascade of signals that directs the cells to the right place at the right time. It's a process ...

Materials Science 16 hours ago

Challenge predicts how metals with complex shapes and manufacturing will fracture

Since people started forging and working with metal, they've arguably been interested in how it breaks. But only since the 1950s have scientists and engineers had a mathematical framework for using laboratory measurements ...

Astronomy 16 hours ago

Scientists closer to understanding nature of ultrahigh-energy cosmic rays

With the help of a multitude of original developments, scientists hope to research the processes of birth and propagation of very-high-energy gamma rays, and in the future, to find mysterious dark matter particles that have ...

Condensed Matter Oct 14, 2019

Scientists reveal mechanism of electron charge exchange in molecules

Researchers at the University of California, Irvine have developed a new scanning transmission electron microscopy method that enables visualization of the electric charge density of materials at sub-angstrom resolution.

Optics & Photonics Oct 14, 2019

3-D integrated metasurfaces stacking up for impressive holography

Physicists and materials scientists have developed a compact optical device containing vertically stacked metasurfaces that can generate microscopic text and full-color holograms for encrypted data storage and color displays. ...

Evolution Oct 15, 2019

Piranha fish swap old teeth for new simultaneously

Piranha fish have a powerful bite. Their teeth help them shred through the flesh of their prey or even scrape plants off rocks to supplement their diet.

Polymers Oct 15, 2019

Researchers studied the fabrication of polymeric fibers for use in advanced health care

Mohan Edirisinghe leads a team of researchers at University College London studying the fabrication of polymeric nanofibers and microfibers—very thin fibers made up of polymers. The group describes a study comparing fabrication ...

Bio & Medicine Oct 15, 2019

Quantum dots that light up TVs could be used for brain research

While many people love colorful photos of landscapes, flowers or rainbows, some biomedical researchers treasure vivid images on a much smaller scale—as tiny as one-thousandth the width of a human hair.

General Physics Oct 15, 2019

Experiment measures velocity in 3-D

Many of today's scientific processes are simulated using computer-driven mathematical models. But for a model to accurately predict how air flow behaves at high speeds, for example, scientists need supplemental real life ...

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