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A scientist, in a broad sense, is one engaging in a systematic activity to acquire knowledge. In a more restricted sense, a scientist is an individual who uses the scientific method. The person may be an expert in one or more areas of science. This article focuses on the more restricted use of the word. Scientists perform research toward a more comprehensive understanding of nature, including physical, mathematical and social realms.
Philosophy can be seen as a distinct activity, which is aimed towards a more comprehensive understanding of intangible aspects of reality and experience that cannot be physically measured.
Scientists are also distinct from engineers, those who design, build and maintain devices for particular situations. When science is done with a goal toward practical utility, it is called applied science. An applied scientist may not be designing something in particular, but rather is conducting research with the aim of developing new technologies and practical methods. When science is done with an inclusion of intangible aspects of reality it is called natural philosophy.
Scientists in a laboratory of the University of La Rioja
|Activity sectors||use of scientific method|
|Competencies||Science (Biology, Chemistry and Physics)|
Science and technology have continually modified human existence through the engineering process. As a profession the scientist of today is widely recognized. Scientists include theoreticians who mainly develop new models to explain existing data and predict new results, and experimentalists who mainly test models by making measurements — though in practice the division between these activities is not clear-cut, and many scientists perform both tasks.
Mathematics is often grouped with the sciences. Some of the greatest physicists have also been creative mathematicians. There is a continuum from the most theoretical to the most empirical scientists with no distinct boundaries. In terms of personality, interests, training and professional activity, there is little difference between applied mathematicians and theoretical physicists.
Scientists can be motivated in several ways. Many have a desire to understand why the world is as we see it and how it came to be. They exhibit a strong curiosity about reality. Other motivations are recognition by their peers and prestige, or the desire to apply scientific knowledge for the benefit of people's health, the nations, the world, nature or industries (academic scientist and industrial scientist).
Historical development and etymology of the term
Social roles that partly correspond with the modern scientist can be identified going back at least until 17th century natural philosophy, but the term scientist is much more recent. Until the late 19th or early 20th century, those who pursued science were called "natural philosophers" or "men of science".
English philosopher and historian of science William Whewell coined the term scientist in 1833, and it was first published in Whewell's anonymous 1834 review of Mary Somerville's On the Connexion of the Physical Sciences published in the Quarterly Review. Whewell's suggestion of the term was partly satirical, a response to changing conceptions of science itself in which natural knowledge was increasingly seen as distinct from other forms of knowledge. Whewell wrote of "an increasing proclivity of separation and dismemberment" in the sciences; while highly specific terms proliferated—chemist, mathematician, naturalist—the broad term "philosopher" was no longer satisfactory to group together those who pursued science, without the caveats of "natural" or "experimental" philosopher. Members of the British Association for the Advancement of Science had been complaining about the lack of a good term at recent meetings, Whewell reported in his review; alluding to himself, he noted that "some ingenious gentleman proposed that, by analogy with artist, they might form [the word] scientist, and added that there could be no scruple in making free with this term since we already have such words as economist, and atheist—but this was not generally palatable". Scientists are the people who ask a question about a phenomenon and proceed to systematically go about answering the question themselves. They are by nature curious, creative and well organized. They need to have the ability to observe something and see in it some of the properties other people overlook.
Whewell proposed the word again more seriously (and not anonymously) in his 1840  "The Philosophy of the Inductive Sciences:
As we cannot use physician for a cultivator of physics, I have called him a physicist. We need very much a name to describe a cultivator of science in general. I should incline to call him a Scientist. Thus we might say, that as an Artist is a Musician, Painter, or Poet, a Scientist is a Mathematician, Physicist, or Naturalist.
He also proposed the term physicist at the same time, as a counterpart to the French word physicien. Neither term gained wide acceptance until decades later; scientist became a common term in the late 19th century in the United States and around the turn of the 20th century in Great Britain. By the twentieth century, the modern notion of science as a special brand of information about the world, practiced by a distinct group and pursued through a unique method, was essentially in place.
The social roles of "scientists", and their predecessors before the emergence of modern scientific disciplines, have evolved considerably over time. Scientists of different eras (and before them, natural philosophers, mathematicians, natural historians, natural theologians, engineers, and other who contributed to the development of science) have had widely different places in society, and the social norms, ethical values, and epistemic virtues associated with scientists—and expected of them—have changed over time as well. Accordingly, many different historical figures can be identified as early scientists, depending on which elements of modern science are taken to be essential. Some historians point to the 17th century as the period when science in a recognizably modern form developed (what is popularly called the Scientific Revolution), and hence is when the first people who can be considered scientists are to be found. If the category of "scientist" is limited to those who do scientific research as a profession, then the social role of scientist essentially emerged in the 19th century as part of the professionalization of science.
Ancient and medieval science
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Knowledge about nature in Classical Antiquity was pursued by many kinds of scholars. Greek contributions to science—including works of geometry and mathematical astronomy, early accounts of biological processes and catalogs of plants and animals, and theories of knowledge and learning—were produced by philosophers and physicians, as well as practitioners of various trades. These roles, and their associations with scientific knowledge, spread with the Roman Empire and, with the spread of Christianity, became closely linked to religious institutions in most of Europe. Astrology and astronomy became an important area of knowledge, and the role of astronomer/astrologer developed with the support of political and religious patronage. By the time of the medieval university system, knowledge was divided into the trivium—philosophy, including natural philosophy—and the quadrivium—mathematics, including astronomy. Hence, the medieval analogs of scientists were often either philosophers or mathematicians. Knowledge of plants and animals was broadly the province of physicians.
Science in medieval Islam generated some new modes of developing natural knowledge, although still within the bounds of existing social roles such as philosopher and mathematician. Many proto-scientists from the Islamic Golden Age and medieval and Renaissance Europe are considered polymaths, in part because of the lack of anything corresponding to modern scientific disciplines. Many of these early polymaths were also religious priests and theologians: for example, Alhazen and al-Biruni were mutakallimiin; the physician Avicenna was a hafiz; the physician Ibn al-Nafis was a hafiz, muhaddith and ulema; the botanist Otto Brunfels was a theologian and historian of Protestantism; the astronomer and physician Nicolaus Copernicus was a priest.
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Descartes was not only a pioneer of analytic geometry but formulated a theory of mechanics and advanced ideas about the origins of animal movement and perception. Vision interested the physicists Young and Helmholtz, who also studied optics, hearing and music. Newton extended Descartes' mathematics by inventing calculus (contemporaneously with Leibniz). He provided a comprehensive formulation of classical mechanics and investigated light and optics. Fourier founded a new branch of mathematics — infinite, periodic series — studied heat flow and infrared radiation, and discovered the greenhouse effect. Von Neumann, Turing, Khinchin, Markov and Wiener, all mathematicians, made major contributions to science and probability theory, including the ideas behind computers, and some of the foundations of statistical mechanics and quantum mechanics. Many mathematically inclined scientists, including Galileo, were also musicians.
In the late 19th century, Louis Pasteur, an organic chemist, discovered that microorganisms can cause disease. A few years earlier, Oliver Wendell Holmes, Sr., the American physician, poet and essayist, noted that sepsis in women following childbirth was spread by the hands of doctors and nurses, four years before Semmelweis in Europe. There are many compelling stories in medicine and biology, such as the development of ideas about the circulation of blood from Galen to Harvey. The flowering of genetics and molecular biology in the 20th century is replete with famous names. Ramón y Cajal won the Nobel Prize in 1906 for his remarkable observations in neuroanatomy.
Some see a dichotomy between experimental sciences and purely "observational" sciences such as astronomy, meteorology, oceanography and seismology. But astronomers have done basic research in optics, developed charge-coupled devices, and in recent decades have sent space probes to study other planets in addition to using the Hubble Telescope to probe the origins of the Universe some 14 billion years ago. Microwave spectroscopy has now identified dozens of organic molecules in interstellar space, requiring laboratory experimentation and computer simulation to confirm the observational data and starting a new branch of chemistry. Computer modeling and numerical methods are techniques required of students in every field of quantitative science.
Women in science
The percent of women entering into science are usually intertwined with engineering stats but the combination of the percentages shows the low numbers that are involved. The number of science and engineering doctorates awarded to women rose from a mere 7 percent in 1970 to 34 percent in 1985 and in engineering alone the numbers of bachelor’s degrees awarded to women rose from only 385 in 1975 to more than 11000 in 1985.
The inequality prevails into the professional setting in ways such as starting position inequality and income inequality. According to Eisenhart and Finkel women experiences, even when they have equal qualifications, are that they start in lower-positions while men are granted tenure track positions. This later predicts an inequality of tenures positions as scientist in universities, “as of 1989 65 percent of men and only 40 percent of women held tenured positions.” Income conflicts occur when median annual salaries for full-time employed civilian scientists, “salary for men is $48,000, and that for women is $42,000.” 
Types of scientists
Those considering science as a career often look to the frontiers. These include cosmology and biology, especially molecular biology and the human genome project. Other areas of active research include the exploration of matter at the scale of elementary particles as described by high-energy physics, and nanotechnology, which hopes to develop electronics including microscopic computers, and perhaps artificial intelligence. Although there have been remarkable discoveries with regard to brain function and neurotransmitters, the nature of the mind and human thought still remains unknown.
- Agricultural scientists
- Evolutionary biologists
- Marine biologists
- Medical scientists
- Molecular biologists
- Computer scientists
- Earth scientists
- Library scientists
- Military scientists
- Abnormal psychologists
- Behavioral psychologists
- Clinical psychologists
- Comparative psychologists
- Cognitive psychologists
- Developmental psychologists
- Educational psychologists
- Evolutionary psychologists
- Experimental psychologists
- Forensic psychologists
- Health psychologists
- Medical psychologists
- Social psychologists
- Social scientists
- Industrial/Applied Scientists
- Lay people/Citizen scientists
- Gentleman scientist
- Government scientist
- Fields Medal
- Hippocratic Oath for Scientists
- History of science
- Mad scientist
- Natural science
- Nobel Prize
- Normative science
- Social science
- Related lists
- List of engineers
- List of mathematicians
- List of Nobel laureates in Physics
- List of Nobel laureates in Chemistry
- List of Nobel laureates in Physiology or Medicine
- List of Russian scientists
- List of Roman Catholic cleric-scientists
- Isaac Newton (1687, 1713, 1726). " Rules for the study of natural philosophy", Philosophiae Naturalis Principia Mathematica, Third edition. The General Scholium containing the 4 rules follows Book 3, The System of the World. Reprinted on pages 794-796 of I. Bernard Cohen and Anne Whitman's 1999 translation, University of California Press ISBN 0-520-08817-4, 974 pages.
- Oxford English Dictionary, 2nd ed. 1989
- Nineteenth-Century Attitudes: Men of Science. http://www.rpi.edu/~rosss2/book.html
- Friedrich Ueberweg, History of Philosophy: From Thales to the Present Time. C. Scribner's sons v.1, 1887
- Steve Fuller, Kuhn VS. Popper: The Struggle For The Soul Of Science. Columbia University Press 2004. Page 43. ISBN 0-231-13428-2
- Science by American Association for the Advancement of Science, 1917. v.45 1917 Jan-Jun. Page 274.
- Ross, Sydney (1962). "Scientist: The story of a word" (PDF). Annals of Science 18 (2): 65–85. doi:10.1080/00033796200202722. Retrieved 2011-03-08. To be exact, the person coined the term scientist was referred to in Whewell 1834 only as "some ingenious gentleman." Ross added a comment that this "some ingenious gentleman" was Whewell himself, without giving the reason for the identification. Ross 1962, p.72.
- Holmes, R (2008). The age of wonder: How the romantic generation discovered the beauty and terror of science. London: Harper Press. p. 449. ISBN 978-0-00-714953-7.
- Whewell, William. The Philosophy of the Inductive Sciences Part 1. Cambridge: John W Parker J&J Deighton. p. cxiii.
- "William Whewell (1794-1866) gentleman of science". Retrieved 2007-05-19.
- Tamara Preaud, Derek E. Ostergard, The Sèvres Porcelain Manufactory. Yale University Press 1997. 416 pages. ISBN 0-300-07338-0 Page 36.
- Gary B. Ferngren (2002). "Science and religion: a historical introduction". JHU Press. p.33. ISBN 0-8018-7038-0
- Thiele, Rüdiger (2005), "In Memoriam: Matthias Schramm", Arabic Sciences and Philosophy (Cambridge University Press) 15: 329–331, doi:10.1017/S0957423905000214
- Tracey Tokuhama-Espinosa (2010). Mind, Brain, and Education Science: A Comprehensive Guide to the New Brain-Based Teaching. W. W. Norton & Company. p. 39. ISBN 9780393706079. "Alhazen (or Al-Haytham; 965–1039 C.E.) was perhaps one of the greatest physicists of all times and a product of the Islamic Golden Age or Islamic Renaissance (7th–13th centuries). He made significant contributions to anatomy, astronomy, engineering, mathematics, medicine, ophthalmology, philosophy, physics, psychology, and visual perception and is primarily attributed as the inventor of the scientific method, for which author Bradley Steffens (2006) describes him as the “first scientist"."
- "The Top 100 Heroes of Western Culture - #31: Ibn al-Haytham / Alhazen (965-1040)". Western Culture Global. 2009. Retrieved 20 August 2012. "He is properly regarded as one of history's most eminent physicists. He is considered the father of optics, a pioneer of the scientific method, the founder of psychophysics and experimental psychology, and the "first scientist.""[unreliable source?]
- 4D Electron Microscopy: Imaging in Space and Time. World Scientific. 2010. p. 5. ISBN 9781848164000. "Introducing such methods of experimental observation earned Alhazen the title of the First Scientist, and the place alongside Galileo (Figure 1.5) who came into the world of observational science centuries after Alhazen."
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- Murdoch 2000, p. 26.
- On the historical development of the character of scientists and the predecessors, see: Steven Shapin (2008). The Scientific Life: A Moral History of a Late Modern Vocation. Chicago: Chicago University Press. ISBN 0-226-75024-8
- Eisenhart and Finkel, Ch 1 in The Gender and Science Reader ed. Muriel Lederman and Ingrid Bartsch. New York, Routledge, 2001. (16-17)
- Further reading
- Alison Gopnik, "Finding Our Inner Scientist", Daedalus, Winter 2004.
- Charles George Herbermann, The Catholic Encyclopedia. Science and the Church. The Encyclopedia press, 1913. v.13. Page 598.
- Thomas Kuhn, The Structure of Scientific Revolutions, 1962.
- Arthur Jack Meadows. The Victorian Scientist: The Growth of a Profession, 2004. ISBN 0-7123-0894-6.
- Science, The Relation of Pure Science to Industrial Research. American Association for the Advancement of Science. Page 511 onwards.
- For best results, add a little inspiration - The Telegraph about What Inspired You?, a survey of key thinkers in science, technology and medicine
- Peer Review Journal Science on amateur scientists
- The philosophy of the inductive sciences, founded upon their history (1847) - Complete Text