Written by Jagoda Urban-Klaehn Wednesday, 05 December 2012 00:36
Marie was already young wife and mother, now it was a time to find a subject for doctorial thesis. She would become the first woman in Europe with PhD in Physics! Read the previous part: Maria and Pierre Curie: First Meeting, Love and Marriage .
The discovery of strange X-ray radiation by Rentgen, the radiation that showed bare bone in human hand became the most novel scientific curiosity. Henri Bequerel found that salts of uranium were also a source of this strange radiation. They made a mark on photographic paper without any access to the external light. So Marie naturally decided to follow up and investigate it. Pierre and Jacques Curie invented the electrometer (see the photo on the right) based on piezoelectric quartz that could detect very small amount of electricity. It was known that this strange radiation caused changes in the electric field, so Curies electrometer was a very suitable device to experiment with these strange and penetrating rays.