In fact, an alpha particle really is a nucleus-it's the same as the nucleus of a common atom of helium-but it doesn't have any electrons around it, and it's traveling very fast. Alpha particles are a type of ionizing radiation. To describe the production of alpha particles, we have to define radioactive decay.
Kingsburg Swedish Festival, which is the biggest and most known festivals that bring people in from all over the country, is held annually during the third weekend in May. Activities include a Swedish pancake breakfast, a parade and the coronation of the Swedish Festival Queen.
In 1952 the Swedish Parliament decided that Midsummer should always be celebrated on a weekend. As a result, the observance of Midsummer now varies between June 20 and 26. In many countries the summer solstice is celebrated with huge outdoor bonfires. This was once part of the Swedish festival as well, but these days the bonfire is most associated in Sweden with Walpurgis Night celebrations on April 30. Instead the focus of Midsummer celebrations is the maypole (or Midsummer pole) decorated with greenery and flowers.