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"[And] it was extremely hard combining family and career," Bell Burnell said, partly because the university where she worked while pregnant had no provisions for maternity leave.

Born in 1922 in the Bronx, Esther Lederberg would grow up to lay the groundwork for future discoveries on genetic inheritance in bacteria, gene regulation, and genetic recombination.A microbiologist, she is perhaps best known for discovering a virus that infects bacteria—called the lambda bacteriophage—in 1951, while at the University of Wisconsin.Lederberg, along with her first husband Joshua Lederberg, also developed a way to easily transfer bacterial colonies from one petri dish to another, called replica plating, which enabled the study of antibiotic resistance. The Lederberg method is still in use today.Joshua Lederberg's work on replica plating played a part in his 1958 Nobel Prize for physiology or medicine, which he shared with George Beadle and Edward Tatum."She deserved credit for the discovery of lambda phage, her work on the F fertility factor, and, especially, replica plating," wrote Stanley Falkow, a retired microbiologist at Stanford University, in an email. But she didn't receive it.

Lise Meitner's work in nuclear physics led to the discovery of nuclear fission—the fact that atomic nuclei can split in two. That finding laid the groundwork for the atomic bomb.Her story is a complicated tangle of sexism, politics, and ethnicity.After finishing her doctoral degree in physics at the University of Vienna, Meitner moved to Berlin in 1907 and started collaborating with chemist Otto Hahn. They maintained their working relationship for more than 30 years.After the Nazis annexed Austria in March 1938, Meitner, who was Jewish, made her way to Stockholm, Sweden. She continued to work with Hahn, corresponding and meeting secretly in Copenhagen in November of that year.Although Hahn performed the experiments that produced the evidence supporting the idea of nuclear fission, he was unable to come up with an explanation. Meitner and her nephew, Otto Frisch, came up with the theory.Hahn published their findings without including Meitner as a co-author, although several accounts say Meitner understood this omission, given the situation in Nazi Germany."That's the start of how Meitner got separated from the credit of discovering nuclear fission," said Lewin Sime, who wrote a biography of Meitner.

Chien-Shiung Wu overturned a law of physics and participated in the development of the atom bomb.Wu was recruited to Columbia University in the 1940s as part of the Manhattan Project and conducted research on radiation detection and uranium enrichment. She stayed in the United States after the war and became known as one of the best experimental physicists of her time, said Nina Byers, a retired physics professor at the University of California, Los Angeles.In the mid-1950s, two theoretical physicists, Tsung-Dao Lee and Chen Ning Yang, approached Wu to help disprove the law of parity. The law holds that in quantum mechanics, two physical systems—like atoms—that were mirror images would behave in identical ways.Wu's experiments using cobalt-60, a radioactive form of the cobalt metal, upended this law, which had been accepted for 30 years.This milestone in physics led to a 1957 Nobel Prize for Yang and Lee—but not for Wu, who was left out despite her critical role. "People found [the Nobel decision] outrageous," said Byers.Pnina Abir-Am, a historian of science at Brandeis University, agreed, adding that ethnicity also played a role.

Rosalind Franklin used x-rays to take a picture of DNA that would change biology.Hers is perhaps one of the most well-known—and shameful—instances of a researcher being robbed of credit, said Lewin Sime.Franklin graduated with a doctorate in physical chemistry from Cambridge University in 1945, then spent three years at an institute in Paris where she learned x-ray diffraction techniques, or the ability to determine the molecular structures of crystals. (Learn more about her education and qualifications.)She returned to England in 1951 as a research associate in John Randall's laboratory at King's College in London and soon encountered Maurice Wilkins, who was leading his own research group studying the structure of DNA.Franklin and Wilkins worked on separate DNA projects, but by some accounts, Wilkins mistook Franklin's role in Randall's lab as that of an assistant rather than head of her own project.Meanwhile, James Watson and Francis Crick, both at Cambridge University, were also trying to determine the structure of DNA. They communicated with Wilkins, who at some point showed them Franklin's image of DNA—known as Photo 51—without her knowledge.Photo 51 enabled Watson, Crick, and Wilkins to deduce the correct structure for DNA, which they published in a series of articles in the journal Nature in April 1953. Franklin also published in the same issue, providing further details on DNA's structure.Franklin's image of the DNA molecule was key to deciphering its structure, but only Watson, Crick, and Wilkins received the 1962 Nobel Prize in physiology or medicine for their work.

Nettie Stevens performed studies crucial in determining that an organism's sex was dictated by its chromosomes rather than environmental or other factors.After receiving her doctorate from Bryn Mawr College in Pennsylvania, Stevens continued at the college as a researcher studying sex determination.By working on mealworms, she was able to deduce that the males produced sperm with X and Y chromosomes—the sex chromosomes—and that females produced reproductive cells with only X chromosomes. This was evidence supporting the theory that sex determination is directed by an organism's genetics.A fellow researcher, named Edmund Wilson, is said to have done similar work, but came to the same conclusion later than Stevens did.Stevens fell victim to a phenomenon known as the Matilda Effect—the repression or denial of the contributions of female researchers to science.Thomas Hunt Morgan, a prominent geneticist at the time, is often credited with discovering the genetic basis for sex determination, said Pomona College's Hoopes. He was the first to write a genetics textbook, she noted, and he wanted to magnify his contributions."Textbooks have this terrible tendency to choose the same evidence as other textbooks," she added. And so Stevens' name was not associated with the discovery of sex determination.

the first wife of Albert Einstein should be in this list. People know so little about her, and I think she deserves to be known. 

Vera Rubin, for accurate studies discovering dark matter.

How sadly ironic that the very woman who set the stage for the  DNA structure discovery, which in 1994 helped make it possible to genetically test and confirm BRCA carriers like Angelina Jolie and me (with familial cancer holocausts generation, after generation, after generation), did not have access the test that could have saved her life so she could go on with the research she loved and win a Nobel Prize.

effect on politics was considerable and complex; while for much of the peak Romantic period it was associated with liberalism and radicalism, its long-term effect on the growth of nationalism was probably more significant

The movement validated intense emotion as an authentic source of aesthetic experience, placing new emphasis on such emotions as apprehension, horror and terror, and awe—especially that which is experienced in confronting the sublimity of untamed nature and its picturesque qualities: both new aesthetic categories

r, and the distant in modes more authentic than Rococo chinoiserie, harnessing the power of the imagination to envision and to escape

made spontaneity a desirable characteristic

argued for a "natural" epistemology of human activities, as conditioned by nature in the form of language and customary usag

Romanticism embraced the exotic, the unfamiliar, and the distant in modes more authentic than Rococo chinoiserie, harnessing the power of the imagination to envision and to escape

elevated folk art and ancient custom to a noble status

the events of and ideologies that led to the French Revolution planted the seeds from which both Romanticism and the Counter-Enlightenment sprouted

in the second half of the 19th century, "Realism" was offered as a polarized opposite to Romanticism

Romanticism assigned a high value to the achievements of 'heroic' individualists and artists, whose pioneering examples, it maintained, would raise the quality of society

In order to truly express these feelings, the content of the art must come from the imagination of the artist, with as little interference as possible from "artificial" rules dictating what a work should consist of

The importance the Romantics placed on untrammelled feeling is summed up in the remark of the German painter Caspar David Friedrich that "the artist's feeling is his law"

vouched for the individual imagination as a critical authority allowed of freedom from classical notions of form in art

the influence of models from other works would impede the creator's own imagination, so originality was absolutely essential

The concept of the genius, or artist who was able to produce his own original work through this process of "creation from nothingness", is key to Romanticism, and to be derivative was the worst sin

romantic originality.

a strong belief and interest in the importance of nature. However this is particularly in the effect of nature upon the artist when he is surrounded by it, preferably alone

In contrast to the usually very social art of the Enlightenment, Romantics were distrustful of the human world, and tended to believe that a close connection with nature was mentally and morally healthy

in literature, "much of romantic poetry invited the reader to identify the protagonists with the poets themselves"

by the middle of the 18th century "romantic" in English and romantique in French were both in common use as adjectives of praise for natural phenomena such as views and sunsets, in a sense close to modern English usage but without the implied sexual element

only from the 1820s that Romanticism certainly knew itself by its name, and in 1824 the Académie française took the wholly ineffective step of issuing a decree condemning it in literature

Romanticism is not easily defined, and the period typically called Romantic varies greatly between different countries and different artistic media or areas of thought

Margaret Drabble described it in literature as taking place "roughly between 1770 and 1848"

In other fields and other countries the period denominated as Romantic can be considerably different; musical Romanticism, for example, is generally regarded as only having ceased as a major artistic force as late as 1910, but in an extreme extension the Four Last Songs of Richard Strauss are described stylistically as "Late Romantic" and were composed in 1946–48.[23] However in most fields the Romantic Period is said to be over by about 1850, or earlie

early period of the Romantic Era was a time of war, with the French Revolution (1789–1799) followed by the Napoleonic Wars until 1815. These wars, along with the political and social turmoil that went along with them, served as the background for Romanticism

t was part of the Counter-Enlightenment, a reaction against the Age of Enlightenment, is generally accepted

ts relationship to the French Revolution which began in 1789 in the very early stages of the period, is clearly important, but highly variable depending on geography and individual reactions

ost Romantics can be said to be broadly progressive in their views, but a considerable number always had, or developed, a wide range of conservative views

In philosophy and the history of ideas, Romanticism was seen by Isaiah Berlin as disrupting for over a century the classic Western traditions of rationality and the very idea of moral absolutes and agreed values, leading "to something like the melting away of the very notion of objective truth",[27] and hence not only to nationalism, but also fascism and totalitarianism

The painter, the poet, the composer do not hold up a mirror to nature, however ideal, but invent; they do not imitate (the doctrine of mimesis), but create not merely the means but the goals that they pursue; these goals represent the self-expression of the artist's own unique, inner vision, to set aside which in response to the demands of some "external" voice — church, state, public opinion, family friends, arbiters of taste — is an act of betrayal of what alone justifies their existence for those who are in any sense creative

An earlier definition comes from Charles Baudelaire: "Romanticism is precisely situated neither in choice of subject nor exact truth, but in the way of feeling."

The end of the Romantic era is marked in some areas by a new style of Realism, which affected literature, especially the novel and drama, painting, and even music, through Verismo opera

movement was led by France, with Balzac and Flaubert in literature and Courbet in painting; Stendhal and Goya were important precursors of Realism in their respective media

In literature, Romanticism found recurrent themes in the evocation or criticism of the past, the cult of "sensibility" with its emphasis on women and children, the heroic isolation of the artist or narrator, and respect for a new, wilder, untrammeled and "pure" nature

Joseph maintained that invention and imagination were the chief qualities of a poet

1774 novel The Sorrows of Young Werther had young men throughout Europe emulating its protagonist, a young artist with a very sensitive and passionate temperament

Germany was a multitude of small separate states, and Goethe's works would have a seminal influence in developing a unifying sense of nationalism

Important motifs in German Romanticism are travelling, nature, and Germanic myths

The later German Romanticism of, for example, E. T. A. Hoffmann's Der Sandmann (The Sandman), 1817, and Joseph Freiherr von Eichendorff's Das Marmorbild (The Marble Statue), 1819, was darker in its motifs and has gothic elements

The significance to Romanticism of childhood innocence, the importance of imagination, and racial theories all combined to give an unprecedented importance to folk literature, non-classical mythology and children's literature, above all in Germany

The first collection of Grimms' Fairy Tales by the Brothers Grimm was published in 1812

Unlike the much later work of Hans Christian Andersen, who was publishing his invented tales in Danish from 1835, these German works were at least mainly based on collected folk tales, and the Grimms remained true to the style of the telling in their early editions, though later rewriting some parts