In Paris, Friend Of Bequerel’s, A Young Physicist-chemist Couple Named Pierre And Marie Curie, Began To Scour The Natural World For Even More Powerful Chemical Sources Of X-rays. Pierre And Marie (then Maria Sklodowska, A Penniless Polish Immigrant Living In A Garret In Paris) Had Met At The Sorbonne And Been Drawn To Each Other Because Of A Common Interest In Magnetism.