There are three primary ways that naturally occurring radioactive isotopes decay: 1  Alpha particle emission. 2  Beta particle emission. 3  Gamma radiation emission.
President condemns Ankara attacks. The current migration crisis is a problem of the entire EU and not of a particular country, Polish President Andrzej Duda said after the end of the Visegrad Group two-day summit in Balatonfuered, Hungary, on Friday.
1921 The Modern Polish constitution was formed. Poland was a republic (until 1926), the national bank reformed, mining was developed in Silesia and the construction of the first Polish port in Gdynia took place. The country was unstable though. The first President, Narutowicz, was assassinated in Warsaw one year later.