X-rays and their uses. X-rays are one type of electromagnetic radiation. They are commonly used in hospitals to produce photographs of bones which can be checked for breaks or fractures. X-rays have the following properties: they can penetrate less dense matter such as skin and body tissue (but not bone)
The historic Glensheen Mansion, along London Road in Duluth MN, was built for Chester Congdon and his family. Chester Congdon went from being a school teacher in Wisconsin to being the wealthiest Minnesotan at the time of his death in 1916, worth 40 million dollars.
The home, as it stands now, was built in 1959, with several additions along the way. It is now worth almost $88-million, with a 2012 tax bill of $904,239.00. Most of the images we have of Oprahâs mansion are aerial views because photographers just canât close enough, unless theyâre invited. Despite its size, and its wide open areas, The Promised Land is embedded within the surrounding trees.