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The Battery
Alessandro Volta was an Italian chemist and physicist. He is also known for the discovery of methane. He was born on 18 February 1745 in Italy and died on 5 March 1827 in Italy. The battery is a device consisting of two or more cells with external connectors, which convert stored chemical energy into electric current. The battery made it possible to experiment with electrical circuits because it became possible to manage a steady flow of electricity. -
Steam-powered Locomotive
Richard Trevithick was an English inventor and engineer. He was born on 13 April 1771 in England and died on 22 April 1833. It is a type of locomotive powered by the action of steam. It is filled with hot water and a red-hot iron rod is inserted into the heating tube which generated the steam and set the engine in motion. With the steam locomotive, it was possible to start collecting in the coal mines much more easily. With the plans, it was possible to improve quickly. -
Printing Press
Frederick Koenig was a German inventor. He was born on 17 April 1774 in Germany and died on 17 January 1833 at the age of 58. It is a mechanical method for reproducing texts and images on paper, vellum, cloth or other material. It consists of applying ink to metal parts and transferring it to paper by pressure. With the printing press, books could be multiplied much more easily and this helped the spread of information. -
Mechanical Calculator
Charles Babbage was a British mathematician and computer scientist. He was born on 26 December 1791 and died on 18 October 1871. It is a calculating system that works on a mechanical principle to solve an arithmetic operation. It works with a grooved cylinder and the movement of the cylinders assigns the values. Thanks to the development of the calculator, the operations performed by scientists for their experiments could be carried out much more quickly. -
Telegraph
Samuel Morse was an American inventor and painter. He is best known for creating Morse code. He was born on 27 April 1791 and died on 2 April 1872 at the age of 80. It is a device that uses electrical signals for the transmission of coded text messages, such as Morse code. It was the first technology that allowed the transmission of data over two great distances. -
Daguerreotype
Louis Daguerre was the first populariser of photography and also worked as a painter and theatrical decorator. He was born on 18 November 1787 and died on 10 July 1851. The image is formed on a mirror-polished silver surface. To economise, the plates were usually made of silver-plated copper. It was the first photographic process to be officially announced and disseminated in 1839. With its extraordinary resolution and clarity, it was the most widely used for almost twenty years. -
Anesthesia
William Morton was an American dentist. He was born on 9 August 1819 and died on 15 July 1868. Anaesthesia is a controlled medical act in which drugs are used to block a patient's tactile and painful sensation, either in all or part of the body. Thanks to anaesthesia, it has been possible to carry out long-term operations, highly complex interventions, and has even been able to alleviate pain, for example during childbirth. -
Pasteurization
Louis Pasteur was a French chemist, physicist, mathematician and bacteriologist. He was born on 27 December 1822 and died on 28 September 1895. Pasteurisation is a thermal process that is performed on liquids to reduce the amount of pathogens that they may contain. Most bacterial agents are killed by high temperatures. It improved the quality of life by allowing certain basic foodstuffs to be transported over long distances without spoiling. -
Dynamite
Alfred Nobel was a Swedish chemist, engineer, writer and inventor. He is famous for inventing dynamite and for creating the prizes that bear his name. He was born on 21 October 1833 and died on 10 December 1896. It is a very powerful explosive composed of nitroglycerine, a liquid explosive substance at room temperature and very unstable. It plays a very important role in works such as mountain excavation, road construction or demolition. -
The telephone
Alexander Graham Bell was a British, naturalised American scientist, inventor and speech therapist. He contributed to the development of telecommunications. He was born on 3 March 1847 and died on 2 August 1922 at the age of 75. The telephone is a telecommunication device created to transmit acoustic signals over a distance by means of electrical signals. Thanks to the telephone, many people were able to communicate over long distances, and with his example, the telephone improved quickly.