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Alessandro Volta invents the battery
https://es.wikipedia.org/wiki/Historia_de_la_pila This invent is very important because we can save energy in it. Is a small square box that is used to release controlled electrical currents and that it had previously stored to power something. -
George Stephenson invents steam locomotive
https://www.historytoday.com/sites/default/files/stephenson.jpg Is a high-speed means of transportation that was invented to get large numbers of people from one place to another quickly. -
W. A . Burt invents the typographer
http://didyouknowstuff.com/uploads/images/image_750x_5ea4b554a8393.jpg A typeface is a cast or raised type used to write on paper. -
Samuel Colt invents the first revolver
https://historia.nationalgeographic.com.es/medio/2021/02/24/publicado-en-la-revista-semanal-the-mechanics-magazine-este-dibujo-muestra-el-revolver-inventado-por-colt-en-la-figura-2-se-puede-ver-el-disco-de-la-culata-y-en-la-figura-3-el-interior-del-cartucho_be01dba9_800x534.jpg The revolver is a weapon with a drum that is used to shoot and is a very dangerous weapon. -
Englishmen Robert Whitehead invents the torpedo.
https://upload.wikimedia.org/wikipedia/commons/5/54/Torpille_Whitehead.jpg Because this invention meant a great change in the weapons world of the time and was the forerunner of modern explosive weapons, still being used but with improvements of new technologies. -
Margaret Knight invents a machine that commercializes flat bottom paper bags.
https://imsanchis.com/wp-content/uploads/2018/10/maquinaMKnight.jpg Because these bags became the standard way for customers to take their purchases home for almost a century, and are still used today. -
Amanda Jones invents vacuum pack.
https://mujeresconciencia.com/app/uploads/2018/05/fruit1.jpg After the invention of the tin can, Amanda Jones went further and created a method of packaging in which air was eliminated so that the food was no longer preserved cooked, resulting in an increase in the quality of the food. -
Josephine Cochrane invents dishwasher.
http://mujeresconciencia.com/app/uploads/2016/01/josephine-cochrane1.jpg At the end of the century, Josephine Cochrane created a machine that made it possible to wash dishes without human effort. This machine was first used in restaurants and later in homes. -
Marie Curie discovers the Radio
https://qph.fs.quoracdn.net/main-qimg-b347ea6a4bd9b6010aa06d38632f84b7-c Because it allows us to define the properties of radioactivity, and it presumes many advances in Science. -
Letitia Geer invents hypodermic syringe
http://3.bp.blogspot.com/-c0-IykDoQw0/TrZ-HDPaO1I/AAAAAAAAB6Q/pGMlQ0w0SIY/s280/FOTO%2B001.jpg Leticia Geer made a great innovation in the medical field, she made syringes that could be injected with only one hand, which facilitated the medical work of the time.
