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Schematic of the Birkeland or Field-Aligned Currents and the ionospheric current systems they connect to, Pedersen and Hall currents. [1]A Birkeland current (also known as field-aligned current, FAC) is a set of electrical currents that flow along geomagnetic field lines connecting the Earth's magnetosphere to the Earth's high latitude ionosphere.
In February 2017, she gave a talk at Google titled "Becoming YouTube's Physics Girl". [14] In 2018, she gave a keynote at CAST 2018 and at STEMtastic. [15] [16] [17] In December 2017, she was featured in an interview in APS News. [18] Cowern has been featured in the Huffington Post, Slate, and Scientific American blogs. [19] [20]
The ring current system consists of a band, at a distance of 3 to 8 R E, [1] which lies in the equatorial plane and circulates clockwise around the Earth (when viewed from the north). The particles of this region produce a magnetic field in opposition to the Earth's magnetic field and so an Earthly observer would observe a decrease in the ...
If the pressure from particles within the magnetosphere is neglected, it is possible to estimate the distance to the part of the magnetosphere that faces the Sun.The condition governing this position is that the dynamic ram pressure from the solar wind is equal to the magnetic pressure from the Earth's magnetic field: [note 1] (()) where and are the density and velocity of the solar wind, and ...
Ringley began to take trips to visit other cam girls, including Ana Voog of Anacam.com. At the height of her popularity, an estimated three to four million people watched JenniCam.org daily. She eventually purchased the domain jennicam.com as well. She appeared as a guest on the Late Show with David Letterman. At the end of the interview, and ...
The entities -- including 13 Russian and 11 Chinese ones, were targeted by the Commerce Department for a host of reasons, including support for Russia's chemical and biological weapons programs ...
Zillow predicts the US housing market will keep shifting in 2025.. The real-estate firm says the average home value rose by 2.6% annually in October. It says homebuying activity should pick up ...
The amount of solar wind energy and plasma entering the actual magnetosphere depends on how far it departs from such a "closed" configuration, i.e. the extent to which Interplanetary Magnetic Field field lines manage to cross the boundary. As discussed further below, that extent depends very much on the direction of the Interplanetary Magnetic ...