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.
Oprah Winfrey is looking for yet, another mansion for her collection. The New York Post has informed that Oprah is house- hunting in the New York area and the most impressive house that she has looked yet is the infamous $68 million dollars mansion in Alpine, New Jersey.