Search results for electromagnetic fields

Astronomy 23 hours ago

Another way to extract energy from black holes?

The gravitational field of a rotating black hole is powerful and strange. It is so powerful that it warps space and time back upon itself, and it is so strange that even simple concepts such as motion and rotation are turned ...

Nanophysics Nov 5, 2024

A single atom can change the directional profile of the light emitted in scanning tunneling microscopes

Researchers from Madrid explain a phenomenon that allows the direction of light emission to be controlled at the atomic scale. The paper provides a detailed explanation of how the profile of the light collected in a scanning ...

Condensed Matter Oct 30, 2024

Quantum simulator could help uncover materials for high-performance electronics

Quantum computers hold the promise to emulate complex materials, helping researchers better understand the physical properties that arise from interacting atoms and electrons. This may one day lead to the discovery or design ...

Astronomy Oct 30, 2024

GOES-19 satellite shares first imagery from solar-monitoring telescope

The Solar Ultraviolet Imager, or SUVI, onboard NOAA's GOES-19 satellite, which launched on June 25, 2024, began observing the sun on Sept. 24, 2024. SUVI monitors the sun in the extreme ultraviolet portion of the electromagnetic ...

Nanomaterials Oct 28, 2024

Research team explores potential of MXenes for nanotech applications

University of Nebraska–Lincoln materials scientists are exploring the physical properties of MXenes, a fast-growing family of two-dimensional materials with the potential for many nanotechnology applications.

Molecular & Computational biology Oct 28, 2024

A landscape of consciousness: Neurophysiologist presents diverse theories and taxonomy of proposed solutions

"Out of meat, how do you get thought? That's the grandest question." So said philosopher Patricia Churchland to Robert Lawrence Kuhn, the producer and host of the acclaimed PBS program, Closer to Truth.

Polymers Oct 28, 2024

Successful development of a perfect diamagnetic conducting polymer

Conducting polymers exhibit a variety of properties in addition to their conductivity. Research has explored their use in light-emitting devices, electromagnetic wave shielding, and anticorrosion materials. One notable characteristic ...

Astronomy Oct 24, 2024

Scientists make Wile E. Coyote observation, confirming theory of how solar flares are created

An international collaboration that includes an Oregon State University astrophysicist has identified a phenomenon, likened to the quick-footed movements of an iconic cartoon predator, that proves a 19-year-old theory regarding ...

Nanophysics Oct 22, 2024

Novel platform integrates 2D polaritons with detection system for miniaturized spectrometers

Polaritons are coupled excitations of electromagnetic waves with either charged particles or vibrations in the atomic lattice of a given material. They are widely used in nanophotonics because of their ability to confine ...

Earth Sciences Oct 22, 2024

A blueprint for mapping melting ice sheets: Open-source tool can help make radar systems at a fraction of the cost

Researchers in the Stanford Radio Glaciology lab use radio waves to understand rapidly changing ice sheets and their contributions to global sea-level rise. This technique has revealed groundwater beneath Greenland, the long-term ...

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