Portal:Poland/Did you know/32

...that the astronomer Nicolaus Copernicus (Mikołaj 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?