Two or more pure substances can be mixed together to form a mixture. An example of a mixture of two compounds is alcohol and water. An example of a mixture of elements and compounds is air. The major components of air are hydrogen, oxygen, nitrogen and carbon dioxide. The substances in a mixture can be separated physically via such methods as filtration or chromatography.
Enigma is a German musical project founded in 1990 by Romanian-German musician and producer Michael Cretu. Cretu had released several solo records, collaborated with various artists, and produced albums for his then wife, German pop singer Sandra, before he conceived the idea of a New Age, Worldbeat project.
The Poles had broken Enigma in 1932, when the encoding machine was undergoing trials with the German Army. But when the Poles broke Enigma, the cipher altered only once every few months.With the advent of war, it changed at least once a day, giving 159 million million million possible settings to choose from.he Poles had broken Enigma in 1932, when the encoding machine was undergoing trials with the German Army. But when the Poles broke Enigma, the cipher altered only once every few months.