Enigma Machine - Wikipedia article
Description: In the history of cryptography, the Enigma was a portable cipher machine used to encrypt and decrypt secret messages. More precisely, Enigma was a family of related electro-mechanical rotor machines — there were a variety of different models.
The Enigma was used commercially from the early 1920s on, and was also adopted by the military and governmental services of a number of nations — most famously by Nazi Germany before and during World War II.
Added on: 10-Mar-2006 Hits: 1309
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Snowmobile - Wikipedia article
Description: A snowmobile (or snow scooter, often referred to by enthusiasts as a 'sled' and in the Canadian north and Alaska as a 'snowmachine') is a land vehicle propelled by one or two rubber tracks, with skis for steering. They are designed to be operated on snow and ice, and require no road or trail. Most snowmobiles are typically powered by two-stroke gasoline/petrol internal combustion engines. Even though they are not designed for it, snowmobiles will skim on top of water if the speed is high enough, as demonstrated by the annual snowmobile river drag race in Kautokeino, Norway. Summertime occupations for snowmobile enthusiasts can also involve drag racing on grass or even asphalt strips. People that drive them are commonly known as snowmobilers.
Added on: 03-Mar-2006 Hits: 1307
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