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: Dissident playwright who became the first president of the new Czech Republic. Click to follow. The Independent Online. The Czech president and playwright Vaclav Havel was the most unexpected, and most brilliant, of the new leaders who emerged from east Europe's peaceful revolutions against Communism.