Inventor, engineer and futurist, Nikola Tesla, is best remembered for his contribution to the development of the modern alternating current (AC) electricity supply system. A prolific inventor, he had around 300 patents for his inventions. Even though he earned a considerable amount of money, he had poor money management skills and died a poor man.
Alexander Graham Bell was a scientist, inventor, and engineer. He is credited with inventing the first functional telephone. He is also credited with co-founding America's major telephone company AT&T, which has been going strong since 1885. Bell's later life was marked by his groundbreaking work in aeronautics, hydrofoils, and optical telecommunications. He was also an ardent supporter of compulsory sterilization.
Orville Wright was an aviation pioneer who alongside his brother, Wilbur, built and flew the world's first successful motor-operated airplane, the Wright Flyer, a heavier-than-air aircraft. The three-axis control system developed by the brothers remains standard on fixed-wing aircraft of all kinds. Orville also served on the board of the National Advisory Committee for Aeronautics (NACA).
Widely known as ten inventor of the world wide web, Tim Berners-Lee made the first communication between an HTTP client and server through the internet in 1989. He is associated with various organizations, such as the W3C and the World Wide Web Foundation, and has received the knighthood, too.
Credit goes to Johannes Gutenberg for transforming book-making from manuscripts to the printed form as he introduced the movable-type printing press in the 15th century. The German printer and publisher’s invention contributed to mass communication during the Renaissance. He was not successful in his business and was exiled during the later years of his life. He was also a goldsmith.
Scottish inventor, electrical engineer, and innovator, John Logie Baird, is best known for demonstrating a working TV system in 1926. He then went on to invent the first viable purely electronic color TV picture tube and founded the Baird Television Development Company. He was inducted into the Scottish Engineering Hall of Fame in 2015.
The inventor of the saxophone, Belgian musician Adolphe Sax, was born to instrument-maker parents who had themselves re-designed the French horn. As a child, he was known as "the ghost" for his frequent brushes with death. He made many other instruments, which were included in the French army bands.
10 Hedy Lamarr
Hedy Lamarr was an Austrian-American actress whose early career was defined by her performance in the controversial Czech erotic film Ecstasy. Apart from gaining popularity as a beautiful Hollywood actress, Hedy Lamarr became known as an inventor after co-inventing frequency-hopping spread spectrum. Her career has inspired several works of art. She was also the inspiration behind the iconic character Catwoman.
11 Elon Musk
Entrepreneur, engineer and industrial designer, Elon Musk, is famous as founder of the electronic payment firm PayPal, and the SpaceX spacecraft company. He is also the CEO of Tesla Motors. Elon Musk has plans to revolutionize transportation on earth as well as to space through futuristic technology.
12 Les Paul
16 James Watt
19 Jack Parsons
20 René Laennec
A multi-talented personality, Howard Hughes was one of the richest person of his time. A business tycoon, he made big investments in films and aviation industry. Passionate about flying, he set numerous flying records, and also risked his own life in process. Howard Hughes who inherited his family business and became millionaire at the age of 18, was later on troubled with mental illness and turned recluse.
The son of a machine shop owner, Robert H. Goddard grew up to become a pioneer of rocketry. Interested in physics and mechanics since childhood, he dreamed of space flight. He developed the world’s first rocket that ran on liquid fuel. NASA's Goddard Space Flight Center is named after him.
25 Royal Rife
26 John Lilly
27 Elijah McCoy
David Unaipon was an Aboriginal Australian preacher, author, and inventor. He is best remembered for his significant contribution to Australian society, which helped break several stereotypes about Aboriginal Australians. Apart from establishing a couple of awards in his honor, the Australian government has also featured Unaipon on the Australian fifty-dollar note.
31 Robert Moog
Granville Woods was 10 when he began working at a machine shop, while continuing his studies at a night school. He grew up to become a steam locomotive engineer and earned the nickname the Black Edison for his countless inventions, most of which were related to electrical systems for railways.
34 Gary Fisher
35 Cai Lun
Cai Lun was a Chinese inventor who served as an eunuch court official of the Han dynasty. Cai Lun played an important role at the imperial court of Emperor He, overseeing the production of weapons and instruments for imperial use. He is credited with inventing paper as we know it today and is hence considered the inventor of modern paper.
39 Hans Egede
Guglielmo Marconi was an Italian electrical engineer and inventor best remembered for his work on long-distance radio transmission. Marconi, who is credited with inventing the radio, was honored with the 1909 Nobel Prize in Physics for his work in the field of wireless telegraphy. Also a businessman, Marconi founded the Wireless Telegraph & Signal Company in 1897.
43 James Dyson
James Dyson is a British industrial designer, inventor, entrepreneur, and landowner. He is credited with founding the popular technology company, Dyson Ltd. He is also credited with inventing the Dual Cyclone bagless vacuum cleaner. Also known for his philanthropic activities, Dyson established the James Dyson Foundation to support engineering education and to inspire young people.
46 Hans Ruckers, the Elder
John DeLorean was an American inventor and engineer. Highly regarded for his work at General Motors, John DeLorean was an influential figure in the US automobile industry. He is credited with founding the popular American automobile manufacturer, The DeLorean Motor Company. DeLorean’s life inspired a couple of documentary films, including Framing John DeLorean where he was played by Alec Baldwin.
Shiva Ayyadurai is an Indian-American engineer, scientist, and entrepreneur. He gained recognition after claiming to be the inventor of email, which is widely disputed even today. His claim is based on a software called EMAIL, which he wrote while studying at Livingston High School in the late-1970s. He is also known for his unfounded medical claims, including treatments for COVID-19.
49 Alfred Nobel
Alfred Nobel was a Swedish chemist, engineer, and inventor. A prolific inventor, he held 355 different patents. Most popular as the inventor of dynamite, he was concerned with how he would be remembered after his death and bequeathed his fortune to the Nobel Prize institution. A wide traveler, he was proficient in several languages.