Russian studies is an interdisciplinary field crossing history and language studies. It is closely related to Soviet and Communist studies and many times is included under Slavic studies.
Combustion of fossil fuels for the heating, cooling and electricity needs of a large factory produces substantial emissions and detrimental impact on the environment. Harnessing thermal energy from the Sun may soon be a cost-effective alternative.
EN 
CS
DE
ES
FR
HU
IT
PL
PT
РУ
SK
TR
УК
AR
中文
