n
August 1914, Germany
invaded France. Nearly all of Curies staff at the Radium Institute
enlisted in the war effort. Scientific research had to halt during the
World War, and Curie looked for ways her science could help. She knew
that doctors could use X-rays to save the lives of wounded soldiers
by revealing bullets, shrapnel, and broken bones. The problem was to
get the X-ray machines to the doctors near the Front. Curie talked wealthy
people into donating their cars, and assembled a fleet of 20 mobile
X-ray stations as well as 200 stationary stations.
Curie chose her teenage daughter Irène as her first assistant.
For a year Irène worked by her mothers side. Like her mother,
she refused to show emotion at the sight of the terrible wounds. Soon
Curie allowed Irène to direct an X-ray station by herself. Meanwhile
Marie thought of another way for radioactivity to help save soldiers
lives. At the Radium Institute she prepared tiny glass tubes containing
a radioactive gas (radon) that comes from minerals containing radium.
Hospital doctors inserted the tiny tubes into patients at spots where
the radiation would destroy diseased tissue.