What was Rejewski's main field of study?
Cryptology
Physics
Chemistry
Biology
Answer
Rejewski's main field of study was cryptology, the science of secret writing. He was particularly interested in breaking codes and ciphers, and he developed several techniques for doing so. His most famous achievement was breaking the Enigma code, which was used by the German military during World War II. Rejewski's work helped the Allies to win the war, and he is considered one of the most important cryptologists in history.
Cracking Codes: The Genius of Marian Rejewski
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