...possible materials that can come in contact with aluminum is mercury, found in old-fashioned thermometers. Planes where mercury has been found are often quarantined and checked for damage.[xi] [i] http://confessionsofatrolleydolly.com/2013/05/31/top-50-useless-aviation-facts/ [ii] http://www.dawn.com/news/609022/interesting-aviation-facts [iii] http://www.shortlist.com/home/tomato-juice-tastes-better-in-the-air [iv] http://en.wikipedia.org/wiki/Flight_attendant#History [v] http://www.dawn.com/news/609022/interesting-aviation-facts [vi] http://www.dawn.com/news/609022/interesting-aviation-facts [vii] http://www.balticaa.com/en/about-us/news-and-press-releases/top-10-interesting-facts-about-aviation/ [viii] http://confessionsofatrolleydolly.com/2013/05/31/top-50-useless-aviation-facts/ [ix] http://www.telegraph.co.uk/travel/723733/What-happens-to-your-body-when-you-fly-and-how-to-beat-the-pain.html [x] http://www.balticaa.com/en/about-us/news-and-press-releases/top-10-interesting-facts-about-aviation/ [xi] http://www.keystoneaviation.com/blog/7-airplane-fun-facts/#sthash.Z9yHPm0b.dpbs...