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Sabin Arnold von Sochocky invented the first radium-based luminescent paint, but eventually died, in 1928, of aplastic anemia resulting from his exposure to the radioactive material.On 4 July 1934, she died at the Sancellemoz sanatorium in Passy, Haute-Savoie, from aplastic anaemia believed to have been contracted from her long-term exposure to radiation, some of which was from the devices she created. Marie Skłodowska Curie, born Maria Salomea Skłodowska, was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity.He spent weeks in a coma, months unable to walk, and years suffering failing health before dying from its effects in 1992/3. Andrei Zheleznyakov, a Soviet scientist, was developing chemical weapons in 1987 when a hood malfunction exposed him to traces of the nerve agent Novichok 5.Michael Dacre (died 2009, age 53) died after a crash that occurred while testing his flying taxi device designed to permit fast, affordable travel between regional cities.Henry Smolinski (died 1973) was killed during a test flight of the AVE Mizar, a flying car based on the Ford Pinto and the sole product of the company he founded.Aurel Vlaicu (1882–1913) died when his self-constructed airplane, Vlaicu II, failed during an attempt to cross the Carpathian Mountains.It was his first attempt with the parachute, and he had told the authorities he would first test it with a dummy. Franz Reichelt (1879–1912), a tailor, fell to his death from the first deck of the Eiffel Tower while testing his invention, the coat parachute.