Radium bromide Institute had four grams of radium total, which at the time was more than half the world supply. Countries all over the world set out to make as much radium as possible, a time consuming and expensive task. It was reported in "Science" magazine in 1919 that the United States had produced approximately 55 grams of radium since 1913, which was also more than half the radium produced in the world at the time. A principal source for radium is pitchblende, which holds a total of 257 mg of radium per ton of UO. Obviously with so little product recovered
Radium Yellowknife According to the report of the "Radium Yellowknife" and all the other surviving vessels of the Radium line were found to be free of contamination, with the exception of the "Radium Gilbert". Radium Yellowknife The Radium Yellowknife is a Canadian tugboat. Like other vessels built for service on the MacKenzie River, its tributaries, and Great Bear Lake and Great Slave Lake, she was first built in a shipyard in southern Canada, then disassembled and shipped by rail to riverport on Lake Athabasca, where it empties into the Slave River. She was built in Vancouver, British Columbia. Her reassembly was delayed