A diesel engine is an internal combustion engine in which ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is also called a compression-ignition engine (or CI engine).…
DFS Kopernikus (meaning Deutscher Fernmeldesatellit Kopernikus) was the name of three geostationary satellites of Deutsche Bundespost and later Deutsche Telekom AG. They are no longer in use. When DFS Kopernikus-3 was nearing the end of its life, SES sealed…
The Magellan spacecraft was a 1,035-kilogram (2,282 lb) robotic space probe launched by NASA on May 4, 1989. Its mission objectives were to map the surface of Venus by using…