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2. ArchimedeArchimede 287 BC c. 212 BC was a greek fromMagna Graecia, a host of Greek colonies in thepart that now is Southern Italy. He anticipatedmodern calculus and analisis. He is said to haveinvented machines, such as a screw pump,compound pulleys, and defensive war machinesto protect his town, Syracuse from invasion, themost famous being the burning mirror thatsupposedly damaged the attacking Roman fleet. 3. Galileo GalileiAstronomer, Matematician,Physicist, 15 February 1564 8January 1642. He studied thestars and planets using atelescope of his invention. Hisdiscovery that the Earth turnsaround the Sun made himFamous. He was forced to denyhis discovery by the religiousauthorities of the time. 4. Galileo's telescopeGalileo also worked in appliedscience and technology,inventing an improved militarycompass and otherinstruments. 5. Leonardo da Vinci15 April 1452 2 May 1519. In his drawings wecan see the first helicopter, battle tank, airplaneand many other objects that were neverimagined before. 6. ALESSANDRO VOLTAHe invented the first electric battery duringhis studies on electricity.Volta studied what we now call electricalcapacitance, developing separate means tostudy both electrical potential (V ) andcharge (Q ), and discovering that for a givenobject, they are proportional. This may becalled Volta's Law of capacitance, and itwas for this work the unit of electricalpotential has been named the volt. 7. Bartolomeo Cristofori PianoforteThe inventor of the modern pianois most probably BartolomeoCristofori (16551731) of Padua,Italy, who was employed byFerdinando de' Medici, GrandPrince of Tuscany, as the Keeperof the Instruments; he was anexpert harpsichord maker, andknew stringed keyboardinstruments like Clavicembalo verywell. 8. Luigi GalvaniGalvani discovered animalelectricity, a force that activatedthe muscles of dead animals.He thought that the activationwas generated by an electricalfluid that is carried to themuscles by the nerves. Thephenomenon was calledgalvanism. Today, the study ofgalvanic effects in biology iscalled electrophysiology. 9. Antonio Meucci18081889. He developed a device for voice communicationover long distance that is considered as the first telephone.In 1849 Meucci developed a popular method of usingelectric shocks to treat illness and subsequentlyexperimentally developed a device through which one couldhear inarticulate human voice. He called this device"telegrafo parlante" (lit. "talking telegraph")In a famous trial, Meucci contested the invention of thetelephone to Graham Bell. 10. Guglielmo MarconiHe is considered as the inventor of radio, and he shared the 1909 NobelPrize in Physics with Karl Ferdinand Braun "in recognition of theircontributions to the development of wireless telegraphy". An entrepreneur,businessman, and founder in Britain in 1897 of The Wireless Telegraph &Signal Company (which became the Marconi Company), Marconitransformed radio into a commercial success of radio by innovating andbuilding on the work of previous experimenters and physicists. 11. Enrico Fermi29 September 1901 28 November 1954, was an Italian physicist.He is famous for his work on Chicago Pile-1 (the first nuclearreactor), and for his contributions to the development of quantumtheory, nuclear and particle physics, and statistical mechanics. Heis one of the men that are considered as the "father of the atomicbomb". Fermi had several patents related to the use of nuclearpower, and was awarded the 1938 Nobel Prize in Physics for hiswork on induced radioactivity by neutron bombardment and thediscovery of transuranic elements. He was widely regarded as oneof the very few physicists to excel both theoretically andexperimentally. 12. DisclaimerThis presentation was made for educational purposes onlyAll images and their legal rights are property of the respective owners.