Part of the sunspot group near disk center
The first pictures from the new Swedish solar telescope on La Palma, Canary Islands, are presented in an article in the prestigious science journal Nature from November 14. The images of the sun are the most detailed ever seen. One of the most sensational discoveries is a previously unknown detailed sunspot structure.
The impact of this discovery is now capturing the attention of solar researchers, and it won`t be long before new and revised theories are formulated.
The solar telescope was designed and built in Sweden and is run by the Institute for Solar Research at the Royal Academy of Science. It boasts a lens one meter in diameter and is specially constructed to cope with problems of movement in the air and atmosphere, which normally disturb in the image. All air has been pumped out of the telescope tube, and a mirror in the path of light changes shape roughly a thousand times per second to counteract disturbances from the atmosphere. This means that the pictures are the sharpest ever taken of the sun. The resolution would allow the bottom line of eye-test charts to be read from a distance of 3 km.
Pulses of electrons manipulate nanomagnets and store information
21.07.2017 | American Institute of Physics
Vortex photons from electrons in circular motion
21.07.2017 | National Institutes of Natural Sciences
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
21.07.2017 | Event News
19.07.2017 | Event News
12.07.2017 | Event News
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21.07.2017 | Physics and Astronomy