Technology

         
             The most important inventions in the 17th and 18th century 



               1709  Piano (Bartolomeo Cristofori)

                  
               
                 The first piano was invented by an Italian man called Bartolomeo Cristofori.
                 The piano arrived when there was a growing demand for a keyboard instrument
                 that could produce a more authoritative sound than the clavichord, and, at the same time,
                 permit much greater control over dynamic expression than was possible on either the
                 harpsichord or the organ.



           1712 Steam engine  (Thomas Newcomen)

           

                 

             Newcomen reached this great invention because he had previous ideas from Thomas
             Slavery´s and it was one of the most important inventions in the 17th century.
             The machine applied the principle that when vapor cools and condenses, its volume is
             reduced. If this process is carried out in a completely sealed chamber, it originates a vacuum.
       


          1722  Fire Extinguisher (French C.Hopffer)

       
          

     

               1724  Thermometer  (Gabriel Fahrenheit)

                     A mercury thermometer is a type of thermometer  
          
                 that is generally used to measure the temperatures of the selected material. 


              1775  Flush toilet  (Alexander Curmmings) 

                

                   This new toilet was an improvement of Sir John Harrington´s water closet.
                    Cummings´toilet allowed some water to stay in the bowl after flushing because of the 
                   "S trap", a sliding valve between the bowl and trap. 
                      

                 1792  Ambulance  (Dominique-Jean Larrey)

              




                 In 1792, with the outbreak of the Franco-Austrian war, Larrey became a medical officer in
                 the Army of the Rhine. There was where he invented the ambulance because lots of people
                 were dying along the way.


             1796  Smallpox vaccination (Edward Jenner)


              



              Smallpox is a serious infectious contagious disease, which in some cases could lead to death.
              There was never special treatment for smallpox and the only prevention methods were
              inoculation or vaccination.
              People were worried to get the vaccine immediately (as you can see in the picture).


             1804  Locomotive (Richard Trevithick)

       
            

            A steam locomotive is a railway locomotive that produces its pulling power through a steam
            engine. This is one of the most important inventions and it started going at the speed of      
            30km/h.


            1861 Bicycle (Pierre Michaux) 


            


           Mechanism:   

           1876  Telephone (Graham Bell)

       





The telephone was the first device in history that enabled people to talk directly with each other across large distances. Telephones rapidly became indispensable to businesses, government, and households and are today some of the most widely used small appliances.