Search results for electromagnetic fields

Space Exploration Dec 05, 2019

Why is the sun's atmosphere so hot? Spacecraft starts to unravel our star's mysteries

If you ask a child to paint a picture of the sun, you will most likely get a bright yellow circle on a piece of paper. This is actually quite accurate, given that the sun is a ball of hot gas and that its surface (called ...

Plasma Physics Dec 05, 2019

Fusion by strong lasers

Nuclear physics usually involves high energies, as illustrated by experiments to master controlled nuclear fusion. One of the problems is how to overcome the strong electrical repulsion between atomic nuclei which requires ...

Astronomy Dec 04, 2019

Scientists have found out why photons from other galaxies do not reach Earth

An international group of scientists, including Andrey Savelyev, associate professor of the Institute of Physical and Mathematical Sciences and Information Technologies of the IKBFU, has improved a computer program that helps ...

Space Exploration Dec 06, 2019

We're using lasers and toaster-sized satellites to beam information faster through space

Satellites are becoming increasingly important in our lives, as they help us meet a demand for more data, exchanged at higher speeds. This is why we are exploring new ways of improving satellite communication.

General Physics Dec 06, 2019

Simple experiment explains magnetic resonance

Physicists at University of California, Riverside, have designed an experiment to explain the concept of magnetic resonance. The project was carried out by undergraduate students in collaboration with local high school teachers.

Nanomaterials Dec 05, 2019

Graphene takes off in composites for planes and cars

The Graphene Flagship brought together top European researchers and companies to discuss the most disruptive ways graphene could enhance composites used in the aerospace, automotive and energy industries. The multidisciplinary ...

Astronomy Nov 27, 2019

A new theory for how black holes and neutron stars shine bright

For decades, scientists have speculated about the origin of the electromagnetic radiation emitted from celestial regions that host black holes and neutron stars—the most mysterious objects in the universe.

General Physics Nov 15, 2019

Discovery of a new type of particle beam instability

Accelerated, charged particle beams do what light does for microscopes: illuminate matter. The more intense the beams, the more easily scientists can examine the object they are looking at. But intensity comes with a cost: ...

Optics & Photonics Nov 11, 2019

Smart metamaterials that sense and reprogram themselves

Materials scientists aim to engineer intelligence into the fabric of materials or metamaterials for programmable functions. Engineering efforts can vary from passive to active forms to develop programmable metasurfaces using ...

General Physics Nov 27, 2019

ATLAS Experiment probes the quark-gluon plasma in a new study of photo-produced muon pairs

At the Large Hadron Collider (LHC) at CERN, the electromagnetic fields of Lorentz-contracted lead nuclei in heavy-ion collisions act as intense sources of high-energy photons, or particles of light. This environment allows ...

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