Month: September 2022

BEYOND COMPUTATION. “There has recently been proposed a limit on the computational power of the universe, i.e. the ability of Laplace's demon to process an infinite amount of information. The limit is based on the maximum entropy of the universe, the speed of light, and the minimum amount of time taken to move information across the Planck length, and the figure was shown to be about 10(120) bits. Accordingly, anything that requires more than this amount of data cannot be computed in the amount of time that has elapsed so far in the universe.” https://en.m.wikipedia.org/wiki/Laplace%27s_demon View in LinkedIn

MAGNETIC SCULPTING OF THE COSMOS. “The tail radius and flaring angle (deviation from a cylindrical shape) are to some extent controlled by the interplanetary magnetic field direction, which controls the intensity of reconnection at the nose of the magnetosphere.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn

ENERGY INPUT. “As all magnetospheric activity is powered by energy input from the solar wind, detailed understanding of the energy transfer processes and mechanisms is a key challenge for space weather applications.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn

ENERGY SINKS. “Mainly two processes consume energy in the ionosphere: Joule heating resulting from the ionospheric closure of field-aligned currents and precipitation of magnetospheric electrons causing the auroral displays. Both quantities can be computed from the ionospheric solution of the global simulation.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn

PRECIPITATED MAGNETOSPHERIC ELECTRONS. “It is obvious that the strong activity drives highly enhanced auroral precipitation to a wide and expanded auroral oval. Furthermore, the ionospheric Joule heating is large both in the auroral oval region and in the polar cap, due to the very strong electric fields in the polar cap region.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn

WIND GENERATES ENERGY. “Solar wind pressure pulses are known to be associated with enhanced ionospheric Joule heating.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn

“SPACE WEATHER events are largely driven by dynamic processes that occur within the magnetotail plasma sheet separating the low-density tail lobes.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn