Camille Flammarion

popular name: Jean Baptiste Perrin

date_of_death: April 17, 1942

age: 71

cause_of_death: Natural Causes

claim_to_fame: Science

best_know_for: Jean Baptiste Perrin was a French physicist who, in his studies of the Brownian motion of minute particles suspended in liquids, verified Albert Einstein’s explanation of this phenomenon and thereby confirmed the atomic nature of matter (sedimentation equilibrium). He was awarded with the Nobel Prize for Physics in 1926 for this achievement.

popular name: Charles Pigeon

date_of_death: March 18, 1915

age: 76

cause_of_death: Natural causes

claim_to_fame: Science

best_know_for: Charles-Joseph Pigeon started as a salesman in department store Le Bon Marché in Paris, where he became a close friend of Ernest Cognacq. Together they became partners and co-founders of the Samaritaine department stores. Pigeon became a dealer in cycle lamps, mining lamps and other combustible lamps. On June 9, 1884 he obtained a patent for his new lamp, the Pigeon lamp, a non-exploding gasoline lamp. He began to design, manufacture and sell his new invention across Europe and later that year he exhibited his Pigeon Lamps at the Exposition universelle de 1900) which subsequently made him famous and very, very wealthy.

popular name: Sir Douglas Mawson

date_of_death: October 14, 1958

age: 76

cause_of_death: Cerebral haemorrhage

claim_to_fame: Science

best_know_for: Douglas Mawson is a world renowned Australian geologist, explorer, and scientist known for his pioneering work in Antarctica. Mawson began his studies at the University of Sydney where majored in geology and developed a passion for exploration. His first expedition began in 1907 when he joined Ernest Shackleton’s British Antarctic Expedition as a scientist. Although the expedition didn’t achieve all its goals, it laid the foundation for his future Antarctic ventures. In 1911 Mawson led the Australasian Antarctic Expedition (AAE), a scientific and exploration mission. This became one of his most notable achievements. Mawson and his team conducted significant geological surveys, made important meteorological observations, and explored previously uncharted areas of Antarctica. In 1912 during the AAE, Mawson embarked on a perilous journey to explore further inland, accompanied by two companions, Belgrave Ninnis and Xavier Mertz. Both men perished—Ninnis fell into a crevasse, and Mertz died from starvation and exposure. Mawson continued alone, suffering from exhaustion and frostbite but ultimately survived, managing to return to base, where he was hailed as a hero. After returning to Australia, Mawson continued his work in geology and advocated for further exploration in Antarctica. He was instrumental in the establishment of Australian research stations in Antarctica, was a key figure in the founding of the Australian Antarctic Division and played a role in ensuring Australia’s claim to parts of Antarctica. For his contributions, including being knighted in 1914, he also made significant contributions to the development of scientific research in polar regions and his name is associated with several geographic locations in Antarctica, and he remains a celebrated figure in Australian exploration history. Today Sir Douglas Mawson is considered one of the greatest men of his era both in Australia and by scientist around the world.