The term half-life describes how long it will take for half of the atoms to decay, and is constant for a given isotope. The curie the unit of measure used to describe the radioactivity of radioactive material. (1C = 3.7 X 1010 disintegrations/sec)
Maria Callas, 53, Is Dead of Heart Attack in Paris. By RAYMOND ERICSON. Maria Callas, the soprano whose intensely dramatic portrayals made her the most exciting opera singer of her time, died of a heart attack yesterday at her home in Paris. She was 53 years old.
Though she is believed to have been infertile, Callas was rumored to have had a love child with Onassis, the shipping tycoon and a Greek compatriot. The son was born in 1960, the rumor has it, and died hours later. Other rumors state that she had at least one abortion while she was with Onassis.