Portal:Poland/Did you know/32


 * ...that the astronomer Nicolaus Copernicus (Miko&#322;aj Kopernik) discovered that the Earth revolves around the Sun?
 * ... that of the ninety historic Synagogues of Kraków, Poland active before World War II, only the Remuh Synagogue  still serves as a Jewish house of prayer?
 * ...that a revolutionary semiconductor called the blue laser was constructed by a group of scientists from the Polish Academy of Sciences in 2001?
 * ...that there is a Winnie the Pooh Street (Polish Ulica Kubusia Puchatka) in Warsaw and Bydgoszcz due to the character's popularity?
 * ...that Polish mathematicians and cryptologists broke the Enigma cipher?