weibel filamentation instabilities

At http://phys.org/print341136762.html ... cosmic magnetic fields is the subject here and something called 'Weibel filamentation instabilities' - a plasma instability present in homogenous, or nearly homogenous. electromagnetic plasmas. It has attracted a fair amount of theoretical interest from plasma physicists and this news release follows the publication of a paper in Nature Physics published in January (2015). Laboratory produced weibels appear to conform to the hypothesis of magnetic field origins and growth.

Rosetta in 'Science'

At http://phys.org/print341155255.html ... the journal Science, January 23rd, has published four articles on the Rosetta Mission - so get down to WH Smith's. Mind you, they are still saying the comet is composed of ice, dust, and space debris, a left over of the early days of the solar system. The lens they are looking through may not have changed too much but they are dealing with lots of new information. Describing the visual outline of the comet they say it is roughly the shape of a rubber duck, two lobes connected by a thin neck.

Rosetta ... provisional assessments

At www.jpl.nasa.gov/news/news.php?release=2015-029 ... NASA writers are telling us that Comet Churyumov-Gerasimenko is gushing water vapour into space - and it has been increasing in volume. The image below was taken in November and faints jets can be seen (via photo enhancement).


the uranium cycle

This is an interesting one as uranium isotopes are used to date rocks and float the geochronological time span. The story is at http://phys.org/print340960522.html ... and no doubt some people are inclined to doubt the whole exercise. Never the less it is all part of the Uniformitarian construct and requires understanding by critics and those with just a thirst for general knowledge. Basically, uranium isotopes are used to date the different rocks assigned to the different periods in the geochronology that has been developed over the last couple of hundred years.

another binocular comet

Comet Lovejoy is currently visible in binoculars as a greenish blob approaching the Pleiades, east of Orion. We now have a second comet that has sparked into brightness - Comet Finlay. The TV doctor's namesake can be seen with binoculars in Aquarius, very close to its brightest star. This is located in the SW area of the night sky - for more information go to Http://phys.org/print340879696.html ...

milking ways

At http://phys.org/print340626087.html ... milking cows has been going on in Ireland for 6000 years. Traces of dairy fats have been discovered on pottery dating from 4000 to 2000BC. This is no surprise, as it stands, as that is the date early farmers arrived in Ireland, and in Britain. However, it shows they managed to ship their animals in at a fairly rapid pace, presumably by sea - but from where?

Middle Palaeolithic Africa

At http://chauvetdreams.co.uk/2014/07/70000-year-old-african-settlement-une... .... it seems, not just Neanderthals were being underestimated but Middle Palaeolithic people in Africa as well. People were living in a village of wooden huts with a separate flint workshop and an animal butchering site located at a distance, 70,000 years ago.

plankton blooms

At http://phys.org/print340618543.html ... the accepted theory on what causes plankton blooms is under attack by a marine botanist. Currently, a phyto plankton hot spot in the mid Atlantic has been chosen as the point of study - funded by NASA. Presumably this is an effort to understand the carbon cycle in the oceans.

not much to choose between them after all

At www.eurekalert.org/pub_releases/2015-01/uom-ydd011415.php ... it seems there is less and less, and even less to distinguish between Neanderthal craftsmanship and cognizant ability, and those of modern humans of the Upper Palaeolithic period.

Mirror on the Past

At http://westerndigs.org/mesoamerican-fools-gold-mirrors-found-in-arizona-... ... a link between Arizona and central Mexico in pre colonial times has been established by various artefacts. The latest exmaples are some 50 mirrors encrusted with the brillian mineral pyrite - known as Fools Gold (but herewith a gold substitute). They were found in a former settlement of the Hohokum Culture and probably arrived in Arizona by trade rather than migration. However, ceremonial ball courts have also been found, and copper bells and the remains of a macaw (bird).