Electromagnetism news

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.

Earth Wind

This story comes from www.spaceweather.com/2021/02/12/a-new-form-of-space-weather-earth-wind/ ... or just go to web site site and click on 12th February 2021 - we know the Sun is windy and brings us a plume of electrified gas = the solar wind. Earth is also windy it would seem. It also produces a breeze of electrified gas, or plasma - just like the sun. It primarily affects the moon, and this is how it was discovered. Every day fountains of gas shoot into space from the poles = the polar wind. Once a month the moon gets hit by this, around the time of full moon.

Cosmic Massacre

At www.thunderbolts.info/wp/2021/01/15/the-lake-victoria-cosmic-massacre-2/ ... the author, Mungo Jupp, ask's - is there a connection between Australia's lunettes and Carolina's oval bays? The lunettes are scattered around Lake Victoria in the Murray basin, a dune like formation, sometimes with cliff like sides. Buried in them are an estimated 15,000 Aboriginal bodies of an uncertain age. Archaeologists, in the past, have claimed it was an Aborigine burial ground, with internments over around 4000 years.

Presumed Supernova

At https://phys.org/news/2021-01-mistaken-identity-presumed-supernova-rever... ... here we have mainstream backtracking on itself. Astronomers thought they were looking at a supernova but oddly it appeared to recurr on several occasions. This was not just mysterious it more or less imploded the idea that supernovas are stars exploding at the end of their lives. That is  surely impossible, and therefore some othere explanation was sought. In this research paper we are solemnly informed the flaring up was caused by a supermassive black hole.

Earth's Magnetic Field History

At https://eos.org/articles/earths-magnetic-field-holds-clues-to-human-hist... ... this is one of those stories about a break through that may reveal more than what was intended. It seems the fiery demise of Near Eastern towns preserved on tells, mainly consisting of mud bricks sorched and burnt by excessive heat, might become, inadvertently, a new area of research. Destruction events are actually a source of knowledge we are told, when it comes to the magnetic field. Ancient upheavals preserve information and can be used to pin down the timeline of history, especially in the Iron Age.

Strange and STEVE

Rober sent in the two links www.space.com/steve-picket-fence-streaks-mystery ... and https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020AV000183 .. and comments, nobody knows what actually causes STEVE but they all do not think it is aurorae. Aurora occur when charged particles crackle along earth's magnetic field lines. STEVE, it seems, is a river of hot turbulent gas that can be seen independently of solar weather. Hot turbulent gas = plasma and a river is a plasma filament, Robert adds.

Pink and Perky

At https://electroverse.net/auroras-without-a-solar-storm-sign-o-the-times/ ... Electroverse is a sort of alarmist blog preaching global cooling is on the way. Nevertheless, it picked up this story with an origin at https://spaceweather.com [11th October 2020]. No sun spots. No solar flares. No coronal mass eruptions. No gust of solar wind. No reason to expect an outburst of auroras on October 11th - but there was. Over Norway, at least, as both sites have a nice image of it. A complete range of colours - including pink. The explanation is that a crack opened in earth's magnetic field.

Blast a Black Hole

At https://phys.org/news/2020-09-blast-black-hole.html ... more properly, how to have a blast like a black hole. Researchers at Osaka University have successfully used short but powerful laser blasts to generate magnetic field re-connections inside a plasma. It has to be recognised the magnetic re-connection used is artificial as well as the plasma. The idea is to imitate them in order to learn more about them. The experiment is said to lead towards a more complete theory of X-ray emissions from the universe - and these include black holes.