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.
At the convening of the UN General Assembly in late September, Polish Ambassador to the UN presented the Gold Cross of Merit to Gerald Kochan, Colonel (ret.), Director of the Polish American Museum and Center for Military Studies on behalf of Polish President Andrzej Duda.