Art is a diverse range of human activities in creating visual, auditory or performing artifacts (artworks), expressing the author's imaginative or technical skill, intended to be appreciated for their beauty or emotional power. In their most general form these activities include the production of works of art, the criticism of art, the study of the history of art, and the aesthetic dissemination of art.
In proportion as a community comes to substitute a qualitative for a quantitative standard of living, it escapes the limitations imposed by matter upon man. Art knows no restrictions of space or size, and in proportion as we attain the art of living we shall be likewise free.
John A. Hobson, The Evolution of Modern Capitalism: A Study of Machine Production (1906)
Magnetic field reconnection is a key process for particle heating and acceleration during solar flares. Turbulence was not accounted for until numerical simulations allowed the exploration of mutually coupled phenomena spanning a broad range of scales.
EN 
CS
DE
ES
FR
HU
IT
PL
PT
РУ
SK
TR
УК
AR
中文
