Portal:Poland/Did you know/32
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!["Astronomer Copernicus: Conversation with God", painted by Jan Matejko](http://178.128.105.246/host-http-upload.wikimedia.org/wikipedia/commons/thumb/8/88/Jan_Matejko-Astronomer_Copernicus-Conversation_with_God.jpg/130px-Jan_Matejko-Astronomer_Copernicus-Conversation_with_God.jpg)
- ...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?