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.
Vaclav Havel - Biography. *5. 10. 1936 Prague - +18. 12. 2011 Hradecek. Writer and Dramatist; One of the first Spokesmen for Charter 77; Leading Figure of the Velvet Revolution of 1989; Last President of Czechoslovakia; and First President of the Czech Republic.