Tin pest related problems such as tin whiskers. At 13.2 °C (about 56 °F) and below, pure tin transforms from the silvery, ductile metallic allotrope of β-form "white tin" to the brittle, nonmetallic, α-form "grey tin" with a diamond cubic structure. The transformation is slow to initiate due to a high activation energy but the presence of germanium (or crystal structures of similar form and size) or very low temperatures of roughly −30 °C aids the initiation. There is also a large volume increase of about 27% associated with the phase change to the nonmetallic low temperature allotrope. This frequently makes tin
Disneyland Resort Paris 15th Anniversary Disneyland Resort Paris 15th Anniversary The Disneyland Resort Paris 15th Anniversary Celebration was a year-long celebration event at the Disneyland Paris holiday resort in Marne-la-Vallée near Paris, France to mark fifteen years of operation. The events officially began on 1 April 2007, following a day of press events and premieres on 31 March 2007. The celebration was originally planned to end on 31 March 2008. However, the celebration was extended until 7 March 2009. The celebration was replaced by Mickey's Magical Party from 4 April 2009. The music used on the advert is the song "Flying" from the "Peter Pan"