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During active ionospheric research, the signal generated by the transmitter system is delivered to the antenna array and transmitted in an upward direction. At an altitude between 70 and 350 km (43 and 217 mi) (depending on operating frequency), the signal is partially absorbed in a small volume several tens of kilometers in diameter and a few ...
It contains numerous references to Area 51 and Groom Lake, along with a map of the area. [9] Media reports stated that releasing the CIA history was the first governmental acknowledgement of Area 51's existence; [53] [54] [15] rather, it was the first official acknowledgement of specific activity at the site. [50]
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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 ...
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.
A map claiming to show the areas of the US that may be targeted in a nuclear war that originally circulated in 2015 is making the rounds again, amid the Russian war in Ukraine.
Space weather is a branch of space physics and aeronomy, or heliophysics, concerned with the varying conditions within the Solar System and its heliosphere. This includes the effects of the solar wind , especially on the Earth's magnetosphere , ionosphere , thermosphere , and exosphere . [ 1 ]
AREA 51 RAIDS: Joerg Arnu’s love of Area 51 saw him move to the Nevada desert and build the world’s most comprehensive database about the mysterious military base. Ever since his homes were ...