Top 10 inventors of all time

This summer is time to find out more about science. There have been a lot of geniuses in this world that invented items we couldn’t live without. Present is what we see thanks to them. Let’s see 10 of the greatest minds of this world.
10. Nicolae Paulescu

10.Nicolae Constantin Paulescu (October 30, 1869 (O.S.) – July 17, 1931) was a Romanian physiologist, professor of medicine, the discoverer of pancreatine (later called insulin). The “pancreine” was a crude extract of bovine pancreas in salted water, after which some impurites were removed withhydrochloric acid and sodium hydroxide.

 

 

9. Dmitri Mendeleev

Dmitri Ivanovich Mendeleev (February 1834 – 2 February 1907 O.S. 27 January 1834 – 20 January 1907) was a Russian chemist and inventor. He formulated the Periodic Law, created his own version of the periodic table of elements, and used it to correct the properties of some already discovered elements and also to predict the properties of elements yet to be discovered.

 

 

8. Isaac Newton

Sir Isaac Newton  (25 December 1642 – 20 March 1727) was an English physicistand mathematician who is widely regarded as one of the most influential scientists of all time and as a key figure in the scientific revolution. His book Philosophiæ Naturalis Principia Mathematica (“Mathematical Principles of Natural Philosophy”), first published in 1687, laid the foundations for most of classical mechanics. Newton also made seminal contributions to optics and shares credit with Gottfried Leibniz for the invention of theinfinitesimal calculus.

 

 

7.Heinrich Hertz

Heinrich Rudolf Hertz (22 February 1857 – 1 January 1894) was a German physicist who clarified and expanded James Clerk Maxwell’s electromagnetic theory of light, which was first demonstrated by David Edward Hughes using non-rigorous trial and error procedures. Hertz is distinguished from Maxwell and Hughes because he was the first to conclusively prove the existence of electromagnetic waves by engineering instruments to transmit and receive radio pulses using experimental procedures that ruled out all other known wireless phenomena. The scientific unit of frequency – cycles per second – was named the “hertz” in his honor.

 

 

6. Roger Bacon

Roger Bacon, (c. 1214–1294) (scholastic accolade Doctor Mirabilis, meaning “wonderful teacher”), was an English philosopher and Franciscan friar who placed considerable emphasis on the study of nature through empirical methods. He is sometimes credited, mainly starting in the 19th century, as one of the earliest European advocates of the modern scientific method inspired by Aristotle and later Arabic scholars, such as those of Muslim scientist Alhazen.However, more recent reevaluations emphasize that he was essentially a medieval thinker, with much of his “experimental” knowledge obtained from books, in the scholastic tradition. A survey of the reception of Bacon’s work over centuries found it often reflects the concerns and controversies central to the receivers.

 

 

5. Louis Braille

Louis Braille (4 January 1809 – 6 January 1852) was the inventor of braille, a system of reading and writing used by people who are blind or visually impaired. As a small child, Braille was blinded in an accident; as a boy he developed a mastery over that blindness; and as a young man – still a student at school – he created a revolutionary form of communication that transcended blindness and transformed the lives of millions. After two centuries, the braille system remains an invaluable tool of learning and communication for the blind, and it has been adapted for languages worldwide.

 

 

4. Alexandru Ciurcu

Alexandru Ciurcu (29 January 1854, Şercaia –22 January 1922, Bucharest) was a Romanian inventor and publisher, famous for his invention with Just Buisson of a reaction engine. It used rocket propulsion and was successfully used to power to boat in 1886.[1] The two men envisioned that such motors would later be used for air travel.

 

 

3. Samuel Colt

Samuel Colt (July 19, 1814 – January 10, 1862) was an American inventor andindustrialist from Hartford, Connecticut. He was the founder of Colt’s Patent Fire-Arms Manufacturing Company (now known as Colt’s Manufacturing Company), and made the mass-production of  he revolver commercially viable for the first time.

 

 

 

2. Rudolf Diesel

Rudolf Christian Karl Diesel ( March 18, 1858 – September 29, 1913) was a German inventor and mechanical engineer, famous for the invention of the Diesel engine.

 

 

1. Johannes Gutenberg
Johannes Gensfleisch zur Laden zum Gutenberg (. 1395 – February 3, 1468) was a German blacksmith,goldsmith, printer, and publisher who introduced printing to Europe. His invention of mechanical movable type printing started the Printing Revolution and is widely regarded as the most important event of the modern period. It played a key role in the development of the Renaissance, Reformation, the Age of Enlightenment, and the Scientific Revolutionand laid the material basis for the modern knowledge-based economy and the spread of learning to the masses.