Alpha radiation is a type of energy released when certain radioactive elements decay or break down. For example, uranium and thorium are two radioactive elements found naturally in the earthâs crust. Over billions of years, these two elements slowly change form and produce âdecay productsâ such as radium and radon.
Before the big race, a two week Kentucky Derby Festival takes place with events for the whole family. Then, as usual, the race will take place on the first Saturday in May 2016. On the big day, the contenders will line-up to race around a 1.25 mile track.
The Kentucky Derby was first run in 1875, and the 2015 edition is the 141st running. Itâs the youngest of the three Triple Crown races, with the Belmont first run in 1867 and the Preakness debuting in 1873.