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.
Sandra Roelofs, Michelle Obama, Mikheil Saakashvili and Barack Obama in 2009 Journey to Polish presidential funeral 18 April 2010 Saakashvili, despite an ash cloud from the EyjafjallajÃ¶kull volcano, because of which airspace over most of Europe has been closed, made his way to Polish president L.Kaczynski's funeral.