Electromagnetism news

The Sun flips its magnetic field every 11 years

This intriguing statement is at https://phys.org/news/2021-08-fast-solar-seasons-sun-clock.html ... the Sun flips its magnetic field every 11 years. How does it do that? A new mystery for science it would seem.

Plasma of Bloodlines

Interesting post at www.thunderbolts.info/wp/2021/08/14/the-plasma-of-bloodlines/ ...  which is about coats of arms and heraldry in general. Symbols have been passed down through the ages. In this post by Marinus Anthony Van Der Sluijs he says such symbolism goes back into the prehistoric period. Harold Bayley said something similar in his books, several volumes, 'The Lost Language of Symbolism' which was first published in 1912 by Williams and Norgate of London. His book has been reproduced by Bracken Books [Random House] London:1996.

Moon and Magnetism

Sent in by Gary www.newscientist.com/article/2285964-the-moon-may-never-actually-have-ha... ... fresh analysis of Apollo moon rocks suggest the moon did not have a magnetic field of its own. Researchers analysed impact glass like rock dated just 2 million years ago and found a magnetic field was present as the rock cooled and solidified. However, it is thought by that time the moon's magnetic field should have weakened -as it is absent in the modern world. Another piece of consensus science has taken a battering - literally as well.

Sun's Electric Field

At https://phys.org/news/2021-07-physicists-sun-electric-field.html ... University of Iowa physicists, using the Parker Solar Probe data, have calculated the distribution of electrons within the Sun's electric field. Electrons are trying to escape but protons are pulling them back, we are told. Some escape. Others don't. However, there are other processes at work, as far as the production of the solar wind is concerned.

Plasma Hum

Robert also sent in a link to this story at Https://phys.org/news/2021-05-space-voyager-plasma.html ... Voyager One, launched 44 years ago, now the most distant human made object in space, is still sending back information to NASA. It has passed through the heliosphere, the border between our solar system and further space, and is trawling through the interstellar medium. It has detected a constant drone of plasma waves, a persistent hum. Voyager is the mission that keeps on giving, even outside the influence of our sun.

Parker and Venus

Robert sent in the link to www.sciencealert.com/natural-radio-emission-has-been-discovered-in-the-a... ... in July of 2020 the Parker solar probe swooped low around Venus and discovered something odd. At 517 miles above the Venusian surface it recorded a low frequency radio signal. This suggest the probe had skimmed through the top of the ionosphere.

High on Oxygen Deprivation

At https://sciencex.com/news/2021-04-prehistoric-cave-painters-high-oxygen.... ... this is not the first research to suggest European cave paintings are the product of people high on something or other - usually substances of one kind or another. Why are these paintings often found in caves or in difficult to access rock shelters. Perhaps the clue is in the last term - were they sheltering from some kind of event [and what might that have been]. A  new study claims low oxygen levels in poorly ventilated caves might induce hypexia - which may inspire hallucinations.

Solar Hurricanes

Robert sent in some interesting links to this story, and William also. They provide different links to the big story of last week - a space hurricane at the poles. See for example https://phys.org/news/2021-03-space-hurricane.html ... and www.yahoo.com/news/space-hurricane-hovered-above-north-205542209.html ... where we are told a cirtical ingredient for auroral phenomena exists somewhat higher than expected, or previously entertained.

Update on Sun

At https://phys.org/news/2021-03-astrophysicist-theory-sun-composition-vari... ... a 2004 theory by astrophysicist J Martin Laming of the US Naval Research Laboratory has recently come up trumps it would seem. Recent observations of the Sun's magnetic waves seem to modify chemical composition in a process completely new, we are told, as far as solar physics are concerned. However, it was known to the optical sciences, and was also the subject of Nobel Prizes in 1997 and 2018. Laming began studying the subject in the 1990s and published his theory in 2004.

Magnetic Fields Outflow

At https://phys.org/news/2021-02-magnetic-fields-astrophysical-jet.html ... outflow from magnetic fields, on extragalactic jets, can form a variety of shapes. Electron density maps of plasma outflow can form a misaligned magnetic field - but not a large misalignment. In other words, the flow of electrons from magnetic plasma, on a galactic scale, is confirmed.