WebJul 18, 2011 · Three and a half weeks after the challenge ended, in late May 2008, I went out on my first date with Jena. That first date was epic; we stayed up all night, telling each other our life stories ... WebBipolar disorder, previously known as manic depression, is a mental disorder characterized by periods of depression and periods of abnormally elevated mood that each last from days to weeks. [4] [5] If the elevated mood is severe or associated with psychosis, it is called mania; if it is less severe, it is called hypomania. [4]

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WebAug 7, 2024 · Earth's magnetic field has flipped dozens of times in the past 2.5 million years, with north becoming south and vice versa. Scientists know the last reversal took place during the Stone Age, but ... WebOct 21, 2016 · The concept is taken from the convention used to describe the Earth’s poles as North and South. In fact, there are two types of poles on the Earth – magnetic and geographic. ... fields bend over the sides … temperature in hurghada egypt in november

Bipolar disorder - Wikipedia

A geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged (not to be confused with geographic north and geographic south). The Earth's field has alternated between periods of normal polarity, in which the predominant direction of … See more In the early 20th century, geologists such as Bernard Brunhes first noticed that some volcanic rocks were magnetized opposite to the direction of the local Earth's field. The first systematic evidence for and time-scale estimate of … See more Past field reversals are recorded in the "frozen" ferromagnetic (more accurately ferrimagnetic) minerals of consolidated sedimentary deposits or cooled volcanic flows on land. See more The magnetic field of the Earth, and of other planets that have magnetic fields, is generated by dynamo action in which convection of molten iron in the planetary core generates … See more • List of geomagnetic reversals, including ages • Magnetic anomaly See more Through analysis of seafloor magnetic anomalies and dating of reversal sequences on land, paleomagnetists have been developing a … See more Duration Most estimates for the duration of a polarity transition are between 1,000 and 10,000 years, but some estimates are as quick as a human … See more Shortly after the first geomagnetic polarity time scales were produced, scientists began exploring the possibility that reversals could be linked to extinctions. Most such proposals rest on the assumption that the Earth's magnetic field would be much … See more WebAstrophysical jet. The starburst galaxy Centaurus A, with its plasma jets extending over a million light years, is considered as the closest active radio galaxy to Earth. The 870-micron submillimetre data, from LABOCA on APEX, are shown in orange. X-ray data from the Chandra X-ray Observatory are shown in blue. treiber samsung m2675fn windows 11