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- Alessandro_Cruto abstract "Alessandro Cruto was an Italian inventor, born in the village of Piossasco, who improved on Thomas Edisons incandescent light bulb.Son of a construction foreman, he attended the school of architecture at he University of Turin, while also attending Physics and Chemistry lectures with the dream of crystallizing carbon to obtain diamonds. In 1872 he opened a small workshop in his home village where he conducted tests on the production of pure carbon from ethylene. His efforts were rewarded in 1874 when his experiments succeeded in producing thin sheets of graphite, albeit his initial purpose was that of producing diamonds.After attending some conferences held by Galileo Ferraris on electric technology - as well as Thomas Edison experiments to find a good filament for incandescent lights - he discovered that a Carbon filament treated with ethylene under high pressure and temperature acquired a positive resistance coefficient (its resistance depends on temperature, when temperature increases, it increase its resistance).Cruto's filament is produced by deposition of graphite on thin platinum filaments in the presence of gaseous hydrocarbons. Sublimating this platinum at high temperatures leaves behind thin filaments of super-pure graphite.He thought that his discovery could be used in incandescent lights instead of carbonized bamboo filament.Helped by Naccari, he experimented with his invention in 1880 in the physics laboratory of the University of Turin.In 1882, he attended the Electricity Expo at Munich, where he gained fame with his technologically new light globe whose efficiency was better than that of Edison's light bulb, also because it produced a white light instead of the yellowish light of Edison's globe.His success was repeated at the International Turin Expo of 1884 to the extent that he sold his project in France, Switzerland, Cuba and USA.After these successes and because his manufacturing facilities in Piossasco were inadequate, he decided to move his activities to a more suitable location. Such a location was identified in Alpignano where in 1995-1886 he founded a light globe factory that he managed until 1889 and that eventually grew to a productivity level of 1000 light bulbs a day.Eventually, due to strong disagreements with the factory new management, he resigned in order to pursue his favorite activity as an inventor.His old factory was sold a number of times, went bankrupt and was eventually acquired by Philips in 1927.Cruto married late in life and spent the rest of his life between his family and his old laboratory. He continued his experiments on the accumulation of atmospheric energy and the invention of a toy called "mosca elettrica" (electrical fly). Cruto died, almost forgotten by all, in 1908.".
- Alessandro_Cruto birthDate "1847".
- Alessandro_Cruto birthDate "1847-05-24".
- Alessandro_Cruto birthPlace Piossasco.
- Alessandro_Cruto birthYear "1847".
- Alessandro_Cruto deathDate "1908-12-15".
- Alessandro_Cruto deathYear "1908".
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- Alessandro_Cruto activity "founder".
- Alessandro_Cruto birthDate "1847-05-24".
- Alessandro_Cruto birthPlace "Piossasco".
- Alessandro_Cruto dateOfBirth "1847".
- Alessandro_Cruto dateOfDeath "1908-12-15".
- Alessandro_Cruto deathDate "1908-12-15".
- Alessandro_Cruto deathPlace "Torino".
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- Alessandro_Cruto name "Alessandro".
- Alessandro_Cruto name "Curto, Alessandro".
- Alessandro_Cruto nationality "Italian".
- Alessandro_Cruto occupation "inventor, company founder".
- Alessandro_Cruto placeOfBirth "Piossasco".
- Alessandro_Cruto placeOfDeath "Torino".
- Alessandro_Cruto surname "Cruto".
- Alessandro_Cruto subject Category:1847_births.
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- Alessandro_Cruto subject Category:Italian_inventors.
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- Alessandro_Cruto comment "Alessandro Cruto was an Italian inventor, born in the village of Piossasco, who improved on Thomas Edisons incandescent light bulb.Son of a construction foreman, he attended the school of architecture at he University of Turin, while also attending Physics and Chemistry lectures with the dream of crystallizing carbon to obtain diamonds. In 1872 he opened a small workshop in his home village where he conducted tests on the production of pure carbon from ethylene.".
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- Alessandro_Cruto givenName "Alessandro".
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- Alessandro_Cruto name "Alessandro Curto".
- Alessandro_Cruto name "Curto, Alessandro".
- Alessandro_Cruto surname "Curto".