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.
Goldens Bridge's most expensive homes -- which sell from $800,000 to more than $1 million -- are at Arbor Hills, a 12-year-old development of four- and five-bedroom houses. Elsewhere in the hamlet, a three-bedroom single-family attached home at the Glen sells for $385,000; at Katonah Close, two-bedroom attached homes go for about $400,000 these days.