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.
HOUSE OF THE DAY: Billy Joel's $20 Million Hamptons Home Finally Sells After 5 Years. After bouncing on and off the market for at least 5 years, Billy Joel has finally sold his Hamptons home for around $19.95 million, reports Newsday. The Piano Man had relisted the Sagaponack mansion for $23.5 million earlier this year.