List of inventions and inventors pdf in hindi


list of inventions and inventors pdf free download in hindi विश्व के प्रमुख आविष्कार और आविष्कारक सूची GK PDF Download. This list gives important Inventions and Inventor name. Download Indian Polity Notes PDF List of Important Inventions and Discoveries. Tag - list of inventions and inventors pdf free download in hindi. Invention And Inventors In Hindi. GK/GS · विश्व व भारत के आविष्कार और आविष्कारक .

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List Of Inventions And Inventors Pdf In Hindi

Static genral knowledge topic which covers all comitative exams such as IBPS, SSC, CPO, Railways,Banking. List of all famous Inventors and. Famous Inventions and Inventors PDF - Free download as PDF File .pdf), Text File .txt) or read online for free. Famous-inventions-and-inventors-pdf. Here is the selective and important list of invention and Inventors for all types of competitive exams. These questions have been asked in competitive exams and .

As seen in the previous year exams too, questions have been asked from this topic. Students are advised to read the below-given list thoroughly. Adding Machine. Wright brothers. John Dalton. Ball-Point Pen. John J. Evangelista Torricelli. Blood Groups.

Calculating machine. Joseph Aspdin. Paul Ehrlich. Circulation of the Blood. William Harvey. Charles Babbage. Continental Drift. Alfred Wegener. C Bose. Diesel Engine. Rudolf Diesel. Electric Tram. Fyodor Pirotsky. Electromagnetic Nature of Light. James Maxwell. North Pole. Robert Peary. Solar System. Nicolaus Copernicus. South Pole. Roald Amundson.

West Indies. Christopher Columbus.

List of inventors - Wikipedia

Alfred B. Michael Faraday. Electric Battery. Alessandro Volta. Electric Generator. Benjamin Franklin. Joseph J.

Evolution theory. Charles Darwin. Fahrenheit Scale. Fountain Pen. Lewis E. Gas lighting. William Murdoch. Levi Strauss. Jet Engine. Sir Frank Whittle.

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Theodore Maiman. Laughing Gas Nitrous oxide. Laws of Gravitation. Laws of Heredity. Gregory Mandel. Laws of Inheritance. Gregor Mendel. When Jeanne was 18 years old, she walked all the way to Paris covering a distance of over kilometers to become a dressmaker. In Paris, she became the assistant of a society dressmaker. She found fame when she designed the wedding gown for Princess Caroline, the future Duchesse de Berry. Princess Caroline was a Sicilian princess who married the nephew of the French king in It was through the commission of this wedding gown that Jeanne met James Power, a rich English nobleman, and merchant.

They got married in in Messina, Sicily, where they lived for more than 20 years. Career Of Jeanne Villepreux-Power - Female French scientist, marine biologist, inventor It was soon after her marriage when Jeanne became interested in natural history.

She was a self-taught naturalist who traveled around Sicily recording and describing its flora and fauna, collecting specimens of minerals, fossils, butterflies, and shells. Argo, a species similar to hermit crabs, and other animals. Inventions of Jeanne Villepreux-Power - Female French scientist, marine biologist, inventor In , Jeanne was the first person to create aquaria for experimenting with aquatic organisms.

In a shipwreck in , a major part of her collections, records, and other scientific materials was lost. Even though Jeanne continued to write after , with all her work gone to the bottom of the ocean, she discontinued her research.

Her invention was designed to help Jeanne with her observations and experiments on the marine species. By using the aquarium as a tool for her research, Jeanne became the first to discover that A. Argo produces its own shell rather than obtaining the shell from another organism. Jeanne reasoned that the tiny organisms that accompanied the egg mass contained within the shell of A.

Argo were males of the species. After inventing her first aquarium, Jeanne developed two other aquarium designs: a glass apparatus placed within a cage for use in shallow water and a cagelike aquarium capable of lowering its contents to various depths. Sadly, Jeanne was forgotten for more than a century after her death. It was not until much later, in , that her work was rediscovered and her name was given to a major crater on Venus discovered by the Magellan probe.

She regularly appears on the U. Joy graduated with a degree in business administration from Pace University in Joy was married to Tony Miranne from to The couple had three children: Christie, Robert, and Jaqueline Miranne.

Inventions of Joy Mangano - Female American entrepreneur and inventor "Stay positive, go out, and start something new! The Miracle Mop was her first invention followed by others including: - The Huggable Hangers: no-slip, velvet flocked hangers whose slender profile conserves wardrobe space - Forever Fragrant: a line of house odor neutralizers that includes sticks, scent stands, wickless candles, finials, shoe shapers, and drawer liners - Performance Platforms: shoes with rubber platform heels that give the user extra height; the line started with sneakers, and extended to mules, Mary Janes, and sandals - The SpinBall Wheel luggage: a wheeled luggage with several organizational features such as a padded laptop compartment, a pocket for airplane tickets, a toiletry organizer, and removable dividers.

The sets come with a zippered, reversible duvet cover and sheets that are fixed to the bed skirt for easy removal and cleaning The invention of Joy Mangano - Female American entrepreneur and inventor - Miracle Mop In , Joy Mangano invented the Miracle Mop, a self-wringing plastic mop that can be easily squeezed out without the need of making the user's hands wet.

Patents of Joy Mangano - Female American entrepreneur and inventor "All you need is one person to say yes to an idea. Russell film starring Jennifer Lawrence. Harriet is best known for her design and invention for a water irrigation system.

Her family moved twice, first to California in and later to Carson City, Nevada in , where Harriet met Charles Lyman Strong, her future husband. Harriet married Charles Strong at the age of Charles had made his fortune in banking, publishing, and mining. Life in the ranch was too boring for Charles so tried to look for another chance in the mining business.

Unfortunately, he failed and found himself in debt instead.

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Charles borrowed against Rancho del Fuerte, increasing his debt even more. Desperate and disappointed after a number of business ventures failures Charles committed suicide in Upon Charles death and for the next ten years, Harriet had to fight to keep control of the ranch, find means of earning money, and deal with her husband's debt at the same time she was raising four daughters.

Harriet came upon walnuts when searching for a stable crop. Walnuts require constant moisture so Harriet designed an irrigation system for her walnut grove. Thanks to her efforts, Harriet was able to pay off her husband's debt and support herself and her four daughters. The career of Harriet Williams Russell Strong - Female American social activist, conservationist, inventor Once Harriet was free from her husband's debt, she continued to push forward with her ideas for water irrigation.

She became an advocate for water conservation and in , she went before Congress and presented a plan that she had designed to dam the Colorado River. For the last 17 years of her life, Harriet was an advocate of women's rights. She traveled to numerous places speaking on behalf of women's education and the push to get women more economically secure. She was a talented musical composer and published a number of songs and a book of musical sketches.

She accomplished amazing things throughout her life. Raising four daughters on her own was not an easy task. She also maintained a ranch, patented five inventions, advocated both water conservation and women's rights. Female Inventor Yvonne C. Brill - Female Canadian-American scientist, propulsion engineer, inventor Yvonne Madelaine Claeys Brill was a Canadian-born American aerospace engineer rocket scientist who pioneered the electrothermal hydrazine thruster.

She invented the propulsion system that keeps communication satellites from falling out of orbit. Yvonne and her two siblings were first-generation Canadians from parents who had emigrated from Belgium.

Yvonne was the first one in her family to go to college. When Yvonne was a child she was very curious. She loved science. Her father wanted Yvonne to open up a little shop in town. Yvonne graduated with a degree in science. The career of Yvonne C. Brill - Female Canadian-American scientist, propulsion engineer, inventor After graduation, in , Yvonne accepted a job offer from the Douglas Aircraft Company in California. She moved to the United States then.

There Yvonne met William Brill. They married within a year, in , and moved to the East Coast, first to Connecticut, then to New Jersey. Yvonne managed to balance her family life and her career very well.

She followed William, who was a research chemist, to wherever his job would take them. Brill Yvonne always managed to get job offers in a field dominated by men. In the beginning, Yvonne worked part-time jobs so that she could care for their three young children.

Yvonne Brill is believed to be the only woman in the United States who was researching into rocket science in the mids. Yvonne encountered her fair share of prejudice and discrimination. She was paid a salary below that of men.

For the last twenty years of her life, Yvonne C. In part, Yvonne's reason for going into rocket engineering was that virtually no other women were doing so. Inventions of Yvonne C. Brill During her lifetime, Yvonne C. The invention of Yvonne C.

Brill - Female Canadian-American scientist, propulsion engineer, inventor - hydrazine resistojet propulsion system Yvonne C. Brill developed the concept for a new rocket engine.

She called it hydrazine resistojet. Resistojet is a method of spacecraft propulsion that provides thrust by heating a non-reactive fluid. Patents of Yvonne C. Brill - Female Canadian-American scientist, propulsion engineer, inventor In , Yvonne Brill designed and invented the hydrazine resistojet propulsion system.

Yvonne Brill patented her propulsion system for satellites in She received U. Patent number 3,, for her invention. The first communications satellite using Yvonne's invention was launched in Her invention is still being used by satellites that handle worldwide phone service, long-range television broadcasts, and other tasks. Yvonne Brill's invention became a standard in the industry.

It has brought millions of dollars of increased revenue for commercial communications satellite owners. Awards and Honors of Yvonne C. Death of Yvonne C. Brill died of complications of breast cancer in Princeton, New Jersey on March 27, , at the age of Female Inventor Hertha Ayrton - Female British engineer, mathematician, physicist and inventor of Line Divider Hertha Ayrton is best known for her work on sand ripples and electric arcs. Phoebe Sarah Marks adopted the name Hertha in her teenage years, after the ancient Germanic earth goddess.

Hertha Ayrton is best known for her work on sand ripples and electric arcs. She was the third of eight children of a Jewish watchmaker and jeweler who had emigrated from Poland to escape the pogroms. Her father died when she was seven, leaving her pregnant mother and her six brothers in poverty. Marks was of the idea that women needed a better not worse education than men, because "women have the harder battle to fight in the world.

At 16, Sarah was working as a governess in order to support herself and her studies which she was determined to advance further. She passed the Cambridge University Examination for Women in with honors in both English and maths. However, the University of Cambridge did not give degrees to women at the time, so she received her degree in science through the University of London in , instead.

Hertha was a close friend of Marie Curie. She famously wrote: " Errors are notoriously hard to kill, but an error that ascribes to a man what was actually the work of a woman has more lives than a cat" after Marie's discovery of radium was attributed to her husband.

Hertha also conducted a vigorous campaign in the press. The writer was a keen supporter of education for women and she took an interest in Hertha's efforts to fund a place at Girton College.

The career of Hertha Ayrton - Female British engineer, mathematician, physicist and inventor Hertha Ayrton earned money by teaching and embroidery.

In , Hertha began attending evening classes at Finsbury Technical College where she met her future husband, Professor William Edward Ayrton who was a pioneer in electrical engineering and physics education and a fellow of the Royal Society.

After marrying William Ayrton in , Hertha began assisting him with experiments in physics and electricity. Hertha also began her own research on the characteristics of the electric arc.

Hertha wrote articles on her research for The Electrician. In her articles, she explained that the problems with the electric arc were the result of oxygen coming into contact with the carbon rods used to create the arc. A few hours later, she was elected the first women member of the IEE.

The next woman was admitted to the IEE in It was not before the late 19th century that Hertha Ayrton's work in the field of electrical engineering was widely recognized not only in England but also internationally. Inventions of Hertha Ayrton - Female British engineer, mathematician, physicist and inventor In , Hertha Ayrton developed a device to blow away poisonous gases from the trenches, keeping soldiers fit.

More than , of the fans were used on the Western Front.

list of inventions and inventors pdf free download in hindi

Other inventions include mathematical dividers, arc lamps and electrodes, and propulsion of air. The invention of Hertha Ayrton - Female British engineer, mathematician, physicist, and inventor - Line Divider Hertha's first major invention was the line-divider.

Her invention was an engineering drawing instrument for dividing a line into any number of equal parts and for enlarging and reducing figures. The primary use for line-divider was for artists for enlarging and diminishing. However, it was also widely used by architects and engineers.

Hertha's invention was shown at the Exhibition of Women's Industries receiving significant press attention. Patents of Hertha Ayrton - Female British engineer, mathematician, physicist and inventor "In experimenting on the arc, my aim was not so much to add to the large number of isolated facts that had already been discovered, as to form some idea of the bearing of these upon one another, and thus to arrive at a clear conception of what takes place in each part of the arc and carbons at every moment.

In , Hertha patented her first major invention: the line-divider, an instrument used for dividing lines into a number of equal parts. Other patents include five on mathematical dividers, 13 on arc lamps and electrodes, and the rest on the propulsion of air. Arc lamps were used for public lighting at the time but they would flicker and hiss on the streets.

Hertha's work led to fixing this issue by binding the arc together to form one constant whole. Awards and Honors of Hertha Ayrton - Female British engineer, mathematician, physicist and inventor "The attempt to correlate all the known phenomena, and to bind them together into one consistent whole, led to the deduction of new facts, which, when duly tested by experiment, became parts of the growing body, and, themselves, opened up fresh questions, to be answered in their turn by experiment.

Hertha's certificate seems to have been the first in the history of the Society to be submitted in favor of a woman, and 41 years were to elapse before the next. Hertha Ayrton is still the only woman to have received this medal. In , an English Heritage blue plaque was unveiled at 41 Norfolk Square in Paddington, where Herta lived, to commemorate her.

Death of Hertha Ayrton - Female British engineer, mathematician, physicist and inventor Hertha Ayton died of blood poisoning caused by an insect bite on August 23, , in Bexhill-on-sea, Sussex, England. Walker , was born in to a family of slaves on a plantation in Louisiana. Sarah Breedlove became an orphan at the age of seven after both her parents died from yellow fever. The career of Madam C. Walker - Female African-American entrepreneur, inventor "I want you to understand that your first duty is to humanity.

I want others to look at us and see that we care not just about ourselves but about others. Walker Aged 33, Sarah started her business career selling the first hair products known as Madame C.

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Walker Vegetable Shampoo. Her line of hair treatment, maintenance, scalp stimulation, and beauty products mainly targeted at black women focused on the need for a healthy and clean scalp, something not always possible due to living conditions back then. She recruited 25, black women by the early s from North and Central America, and the Caribbean as door-to-door beauty consultants.

Inventions of Madam C. Walker developed a formula mixing petroleum —similar to vaseline,— sulfur, and a little perfume to make it smell better.

She used this formula to treat the severe scalp disease, a common disease of the time, which was causing the hair loss. After the successful results, Madame Walker started bottling the formula and selling it door-to-door to other African-American women suffering from the same disease.

Patents of Madam C. Walker did not patent any products herself. Madam C. The company was successful and it became famous for its African-American cosmetics and hair care products invented and developed by Madame C. The Madame C. Walker Company was considered the most widely known and financially successful African-American owned business of the early twentieth century.

In , the Madame C. Walker Company ceased operations. Madame C. An estimate of around 40, African-American worked for Madame C. Walker over the years that the Madame C. Walker was active. A pioneer of the modern cosmetics industry, Madame C. In , Sundial Brands launched a new line called Madam C. Walker Beauty Culture which is sold exclusively in Sephora stores and at Sephora. I want to say to every Negro woman present, don't sit down and wait for the opportunities to come.

Get up and make them! Walker A remarkable woman, who fought against racism, she used her wealth to support African-American institutions, the black YMCA , helped people with their mortgages, donated to orphan and senior citizens homes, she wanted to found a school for black girls in Nigeria although she was not able to do it. She thought educating young girls and women would make a difference in society.

Death of Madam C. Walker, who is considered one of the most successful African-American entrepreneurs throughout history , passed away at the age of 51 from kidney failure in She is known for her work on Charles Babbage's proposed mechanical general-purpose computer, the Analytical Engine. She wrote the instructions for the first computer program in the mids. Annabella left Lord Byron when Ada was two months old and later they legally separated.

Lord Byron left England and never came back. He died in Greece when Ada was eight years old. Ada never knew him personally. Ada was also educated in music and French, though not in poetry. However, she had little contact with her daughter. Ada was brought up by her maternal grandmother and servants. Ada's grandmother died when she was seven. Ada's mother demanded from her daughter that she should work hard.

If she thought her young daughter had not worked hard enough she would punish her with long periods of isolation. Even though there were no places for girls in the United Kingdom's universities, girls from wealthy, aristocratic families could get a high-level education by private tutors.

Ada was privately educated by tutors and also self-educated. Augusts De Morgan, the first professor of mathematics at the University of London, helped Ada in her advanced studies. When her husband has created an earl in Ada became Countess of Lovelace. Then she became to be known as Ada Lovelace.

The career of Ada Lovelace - Female English mathematician, writer, inventor "Mathematical science shows what is. It is the language of unseen relations between things.

But to use and apply that language, we must be able fully to appreciate, to feel, to seize the unseen, the unconscious. Despite the age difference, Ada and Babbage were intellectual peers.

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