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13 Scientific Terms Even Smart People Misuse

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❶Jelly-like substance within cells. In addition to chemical synapses, electrical synapses are propagating an action potential signal without a neurotransmitter, but directly by coupling membranes of adjacent cells using gap junctions.

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In particular, it was the type of knowledge which people can communicate to each other and share. For example, knowledge about the working of natural things was gathered long before recorded history and led to the development of complex abstract thought. This is shown by the construction of complex calendars, techniques for making poisonous plants edible, public works at national scale, such as those which harnessed the floodplain of the Yangtse with reservoirs, [26] dams, and dikes, and buildings such as the Pyramids.

However, no consistent conscious distinction was made between knowledge of such things, which are true in every community, and other types of communal knowledge, such as mythologies and legal systems.

It is thought that early experimentation with heating and mixing of substances over time developed into alchemy. Neither the words nor the concepts "science" and "nature" were part of the conceptual landscape in the ancient near east.

In the classical world, there is no real ancient analog of a modern scientist. Instead, well-educated, usually upper-class, and almost universally male individuals performed various investigations into nature whenever they could afford the time.

For this reason, it is claimed these men were the first philosophers in the strict sense, and also the first people to clearly distinguish "nature" and "convention. They were mainly speculators or theorists , particularly interested in astronomy.

The early Greek philosophers of the Milesian school , which was founded by Thales of Miletus and later continued by his successors Anaximander and Anaximenes , were the first to attempt to explain natural phenomena without relying on the supernatural.

A turning point in the history of early philosophical science was Socrates ' example of applying philosophy to the study of human matters, including human nature, the nature of political communities, and human knowledge itself. The Socratic method as documented by Plato 's dialogues is a dialectic method of hypothesis elimination: This was a reaction to the Sophist emphasis on rhetoric. The Socratic method searches for general, commonly held truths that shape beliefs and scrutinizes them to determine their consistency with other beliefs.

Socrates was later, in the words of his Apology , accused of corrupting the youth of Athens because he did "not believe in the gods the state believes in, but in other new spiritual beings". Socrates refuted these claims, [44] but was sentenced to death. Aristotle later created a systematic programme of teleological philosophy: Motion and change is described as the actualization of potentials already in things, according to what types of things they are.

In his physics, the Sun goes around the Earth, and many things have it as part of their nature that they are for humans. Each thing has a formal cause , a final cause , and a role in a cosmic order with an unmoved mover.

The Socratics also insisted that philosophy should be used to consider the practical question of the best way to live for a human being a study Aristotle divided into ethics and political philosophy. Aristotle maintained that man knows a thing scientifically "when he possesses a conviction arrived at in a certain way, and when the first principles on which that conviction rests are known to him with certainty".

The Greek astronomer Aristarchus of Samos — BCE was the first to propose a heliocentric model of the universe, with the Sun at the center and all the planets orbiting it. During late antiquity, in the Byzantine empire many Greek classical texts were preserved. Many Syriac translations were done by groups such as the Nestorians and Monophysites. Because of the collapse of the Western Roman Empire due to the Migration Period an intellectual decline took place in the western part of Europe in the s.

In contrast, the Byzantine Empire resisted the attacks from the barbarians, and preserved and improved upon the learning. John Philoponus , a Byzantine scholar in the s, was the first scholar ever to question Aristotle's teaching of physics and to note its flaws. John Philoponus' criticism of Aristotelian principles of physics served as an inspiration to medieval scholars as well as to Galileo Galilei who ten centuries later, during the Scientific Revolution , extensively cited Philoponus in his works while making the case as to why Aristotelian physics was flawed.

During late antiquity and the early Middle Ages , the Aristotelian approach to inquiries on natural phenomena was used. Aristotle's four causes prescribed that four "why" questions should be answered in order to explain things scientifically. However, the general fields of science or " natural philosophy " as it was called and much of the general knowledge from the ancient world remained preserved through the works of the early Latin encyclopedists like Isidore of Seville.

However, Aristotle's original texts were eventually lost in Western Europe, and only one text by Plato was widely known, the Timaeus , which was the only Platonic dialogue, and one of the few original works of classical natural philosophy, available to Latin readers in the early Middle Ages.

Another original work that gained influence in this period was Ptolemy 's Almagest , which contains a geocentric description of the solar system. In the Byzantine empire , many Greek classical texts were preserved. Al-Kindi — was the first of the Muslim Peripatetic philosophers, and is known for his efforts to introduce Greek and Hellenistic philosophy to the Arab world.

Ibn al-Haytham Alhazen , as well as his predecessor Ibn Sahl , was familiar with Ptolemy's Optics , and used experiments as a means to gain knowledge. Avicenna's canon is considered to be one of the most important publications in medicine and they both contributed significantly to the practice of experimental medicine, using clinical trials and experiments to back their claims.

In Classical antiquity , Greek and Roman taboos had meant that dissection was usually banned in ancient times, but in Middle Ages it changed: By the eleventh century most of Europe had become Christian; stronger monarchies emerged; borders were restored; technological developments and agricultural innovations were made which increased the food supply and population.

In addition, classical Greek texts started to be translated from Arabic and Greek into Latin, giving a higher level of scientific discussion in Western Europe. By , the first university in Europe the University of Bologna had emerged from its clerical beginnings. Demand for Latin translations grew for example, from the Toledo School of Translators ; western Europeans began collecting texts written not only in Latin, but also Latin translations from Greek, Arabic, and Hebrew.

Manuscript copies of Alhazen's Book of Optics also propagated across Europe before , [66]: Avicenna's Canon was translated into Latin. The influx of ancient texts caused the Renaissance of the 12th century and the flourishing of a synthesis of Catholicism and Aristotelianism known as Scholasticism in western Europe , which became a new geographic center of science.

An experiment in this period would be understood as a careful process of observing, describing, and classifying. Scholasticism had a strong focus on revelation and dialectic reasoning , and gradually fell out of favour over the next centuries, as alchemy 's focus on experiments that include direct observation and meticulous documentation slowly increased in importance.

Alhazen disproved Ptolemy's theory of vision, [70] but did not make any corresponding changes to Aristotle's metaphysics. The scientific revolution ran concurrently to a process where elements of Aristotle's metaphysics such as ethics, teleology and formal causality slowly fell out of favour. Scholars slowly came to realize that the universe itself might well be devoid of both purpose and ethical imperatives. The development from a physics infused with goals, ethics, and spirit, toward a physics where these elements do not play an integral role, took centuries.

This development was enhanced by the Condemnations of , where Aristotle's books were banned by the Catholic church. This allowed the theoretical possibility of vacuum and motion in a vacuum. A direct result was the emergence of the science of dynamics.

New developments in optics played a role in the inception of the Renaissance , both by challenging long-held metaphysical ideas on perception, as well as by contributing to the improvement and development of technology such as the camera obscura and the telescope. Before what we now know as the Renaissance started, Roger Bacon , Vitello , and John Peckham each built up a scholastic ontology upon a causal chain beginning with sensation, perception, and finally apperception of the individual and universal forms of Aristotle.

This theory utilizes only three of Aristotle's four causes: In the sixteenth century, Copernicus formulated a heliocentric model of the solar system unlike the geocentric model of Ptolemy 's Almagest. This was based on a theorem that the orbital periods of the planets are longer as their orbs are farther from the centre of motion, which he found not to agree with Ptolemy's model. Kepler and others challenged the notion that the only function of the eye is perception, and shifted the main focus in optics from the eye to the propagation of light.

He found that all the light from a single point of the scene was imaged at a single point at the back of the glass sphere. The optical chain ends on the retina at the back of the eye. Kepler did not reject Aristotelian metaphysics, and described his work as a search for the Harmony of the Spheres. Galileo made innovative use of experiment and mathematics.

In Northern Europe, the new technology of the printing press was widely used to publish many arguments, including some that disagreed widely with contemporary ideas of nature. Descartes emphasized individual thought and argued that mathematics rather than geometry should be used in order to study nature. Bacon emphasized the importance of experiment over contemplation.

Bacon further questioned the Aristotelian concepts of formal cause and final cause, and promoted the idea that science should study the laws of "simple" natures, such as heat, rather than assuming that there is any specific nature, or " formal cause ", of each complex type of thing.

This new science began to see itself as describing " laws of nature ". This updated approach to studies in nature was seen as mechanistic. Bacon also argued that science should aim for the first time at practical inventions for the improvement of all human life.

As a precursor to the Age of Enlightenment , Isaac Newton and Gottfried Wilhelm Leibniz succeeded in developing a new physics, now referred to as classical mechanics , which could be confirmed by experiment and explained using mathematics. Leibniz also incorporated terms from Aristotelian physics , but now being used in a new non-teleological way, for example, " energy " and " potential " modern versions of Aristotelian " energeia and potentia ".

This implied a shift in the view of objects: Where Aristotle had noted that objects have certain innate goals that can be actualized, objects were now regarded as devoid of innate goals. In the style of Francis Bacon, Leibniz assumed that different types of things all work according to the same general laws of nature, with no special formal or final causes for each type of thing.

During this time, the declared purpose and value of science became producing wealth and inventions that would improve human lives, in the materialistic sense of having more food, clothing, and other things. In Bacon's words , "the real and legitimate goal of sciences is the endowment of human life with new inventions and riches", and he discouraged scientists from pursuing intangible philosophical or spiritual ideas, which he believed contributed little to human happiness beyond "the fume of subtle, sublime, or pleasing speculation".

Science during the Enlightenment was dominated by scientific societies and academies , which had largely replaced universities as centres of scientific research and development. Societies and academies were also the backbone of the maturation of the scientific profession. Another important development was the popularization of science among an increasingly literate population.

Some historians have marked the 18th century as a drab period in the history of science ; [79] however, the century saw significant advancements in the practice of medicine , mathematics , and physics ; the development of biological taxonomy ; a new understanding of magnetism and electricity ; and the maturation of chemistry as a discipline, which established the foundations of modern chemistry. In this respect, the lessons of history and the social structures built upon it could be discarded.

The nineteenth century is a particularly important period in the history of science since during this era many distinguishing characteristics of contemporary modern science began to take shape such as: Early in the 19th century, John Dalton suggested the modern atomic theory , based on Democritus 's original idea of individible particles called atoms.

Both John Herschel and William Whewell systematized methodology: His theory of natural selection provided a natural explanation of how species originated, but this only gained wide acceptance a century later. The laws of conservation of energy , conservation of momentum and conservation of mass suggested a highly stable universe where there could be little loss of resources. With the advent of the steam engine and the industrial revolution , there was, however, an increased understanding that all forms of energy as defined by Newton were not equally useful; they did not have the same energy quality.

This realization led to the development of the laws of thermodynamics , in which the cumulative energy quality of the universe is seen as constantly declining: The electromagnetic theory was also established in the 19th century, and raised new questions which could not easily be answered using Newton's framework.

The phenomena that would allow the deconstruction of the atom were discovered in the last decade of the 19th century: In the next year came the discovery of the first subatomic particle, the electron. Einstein 's theory of relativity and the development of quantum mechanics led to the replacement of classical mechanics with a new physics which contains two parts that describe different types of events in nature.

In the first half of the century, the development of antibiotics and artificial fertilizer made global human population growth possible. At the same time, the structure of the atom and its nucleus was discovered, leading to the release of " atomic energy " nuclear power. In addition, the extensive use of technological innovation stimulated by the wars of this century led to revolutions in transportation automobiles and aircraft , the development of ICBMs , a space race , and a nuclear arms race.

The molecular structure of DNA was discovered in The development of spaceflight in the second half of the century allowed the first astronomical measurements done on or near other objects in space, including manned landings on the Moon.

Space telescopes lead to numerous discoveries in astronomy and cosmology. Widespread use of integrated circuits in the last quarter of the 20th century combined with communications satellites led to a revolution in information technology and the rise of the global internet and mobile computing , including smartphones.

The need for mass systematization of long, intertwined causal chains and large amounts of data led to the rise of the fields of systems theory and computer-assisted scientific modelling , which are partly based on the Aristotelian paradigm.

Harmful environmental issues such as ozone depletion , acidification , eutrophication and climate change came to the public's attention in the same period, and caused the onset of environmental science and environmental technology.

In a article, Lynn Townsend White Jr. With the discovery of the Higgs boson in , the last particle predicted by the Standard Model of particle physics was found. In , gravitational waves , predicted by general relativity a century before, were first observed.

The Human Genome Project was completed in , determining the sequence of nucleotide base pairs that make up human DNA, and identifying and mapping all of the genes of the human genome. Modern science is commonly divided into three major branches that consist of the natural sciences , social sciences , and formal sciences.

Each of these branches comprise various specialized yet overlapping scientific disciplines that often possess their own nomenclature and expertise. There are also closely-related disciplines that use science, such as engineering and medicine. Natural science is concerned with the description, prediction, and understanding of natural phenomena based on empirical evidence from observation and experimentation.

It can be divided into two main branches: Physical science is subdivided into branches, including physics , chemistry , astronomy and earth science. These two branches may be further divided into more specialized disciplines. Modern natural science is the successor to the natural philosophy that began in Ancient Greece. Galileo , Descartes , Bacon , and Newton debated the benefits of using approaches which were more mathematical and more experimental in a methodical way. Still, philosophical perspectives, conjectures , and presuppositions , often overlooked, remain necessary in natural science.

Social science is concerned with society and the relationships among individuals within a society. It has many branches that include, but are not limited to, anthropology , archaeology , communication studies , economics , history , human geography , jurisprudence , linguistics , political science , psychology , public health , and sociology.

Social scientists may adopt various philosophical theories to study individuals and society. For example, positivist social scientists use methods resembling those of the natural sciences as tools for understanding society, and so define science in its stricter modern sense. Interpretivist social scientists, by contrast, may use social critique or symbolic interpretation rather than constructing empirically falsifiable theories, and thus treat science in its broader sense.

In modern academic practice, researchers are often eclectic , using multiple methodologies for instance, by combining both quantitative and qualitative research. The term " social research " has also acquired a degree of autonomy as practitioners from various disciplines share in its aims and methods. Formal science is involved in the study of formal systems. It includes mathematics , [94] [95] systems theory , and theoretical computer science.

The formal sciences share similarities with the other two branches by relying on objective, careful, and systematic study of an area of knowledge. They are, however, different from the empirical sciences as they rely exclusively on deductive reasoning, without the need for empirical evidence , to verify their abstract concepts.

Calculus , for example, was initially invented to understand motion in physics. Scientific research can be labeled as either basic or applied research. Basic research is the search for knowledge and applied research is the search for solutions to practical problems using this knowledge. Although some scientific research is applied research into specific problems, a great deal of our understanding comes from the curiosity-driven undertaking of basic research.

This leads to options for technological advance that were not planned or sometimes even imaginable. This point was made by Michael Faraday when allegedly in response to the question "what is the use of basic research? Scientific research involves using the scientific method , which seeks to objectively explain the events of nature in a reproducible way.

The predictions are to be posted before a confirming experiment or observation is sought, as proof that no tampering has occurred. Disproof of a prediction is evidence of progress. Experimentation is especially important in science to help establish causal relationships to avoid the correlation fallacy.

When a hypothesis proves unsatisfactory, it is either modified or discarded. A theory typically describes the behavior of much broader sets of phenomena than a hypothesis; commonly, a large number of hypotheses can be logically bound together by a single theory. Thus a theory is a hypothesis explaining various other hypotheses. In that vein, theories are formulated according to most of the same scientific principles as hypotheses.

In addition to testing hypotheses, scientists may also generate a model , an attempt to describe or depict the phenomenon in terms of a logical, physical or mathematical representation and to generate new hypotheses that can be tested, based on observable phenomena.

While performing experiments to test hypotheses, scientists may have a preference for one outcome over another, and so it is important to ensure that science as a whole can eliminate this bias. Mathematics is essential in the formation of hypotheses , theories , and laws [] in the natural and social sciences.

For example, it is used in quantitative scientific modeling , which can generate new hypotheses and predictions to be tested. It is also used extensively in observing and collecting measurements.

Statistics , a branch of mathematics, is used to summarize and analyze data, which allow scientists to assess the reliability and variability of their experimental results.

Computational science applies computing power to simulate real-world situations, enabling a better understanding of scientific problems than formal mathematics alone can achieve. According to the Society for Industrial and Applied Mathematics , computation is now as important as theory and experiment in advancing scientific knowledge.

John Ziman points out that intersubjective pattern recognition is fundamental to the creation of all scientific knowledge. Scientific research is published in an enormous range of scientific literature. Since that time the total number of active periodicals has steadily increased. In , one estimate for the number of scientific and technical journals in publication was 11, Although the journals are in 39 languages, 91 percent of the indexed articles are published in English.

Most scientific journals cover a single scientific field and publish the research within that field; the research is normally expressed in the form of a scientific paper. Science has become so pervasive in modern societies that it is generally considered necessary to communicate the achievements, news, and ambitions of scientists to a wider populace.

Science books engage the interest of many more people. Tangentially, the science fiction genre, primarily fantastic in nature, engages the public imagination and transmits the ideas, if not the methods, of science. Recent efforts to intensify or develop links between science and non-scientific disciplines such as literature or more specifically, poetry , include the Creative Writing Science resource developed through the Royal Literary Fund.

Scientific research is often funded through a competitive process in which potential research projects are evaluated and only the most promising receive funding.

Such processes, which are run by government, corporations, or foundations, allocate scarce funds. Total research funding in most developed countries is between 1. The government funding proportion in certain industries is higher, and it dominates research in social science and humanities. Similarly, with some exceptions e.

In commercial research and development, all but the most research-oriented corporations focus more heavily on near-term commercialisation possibilities rather than " blue-sky " ideas or technologies such as nuclear fusion.

Science policy is an area of public policy concerned with the policies that affect the conduct of the scientific enterprise, including research funding , often in pursuance of other national policy goals such as technological innovation to promote commercial product development, weapons development, health care and environmental monitoring.

Science policy also refers to the act of applying scientific knowledge and consensus to the development of public policies. Science policy thus deals with the entire domain of issues that involve the natural sciences. In accordance with public policy being concerned about the well-being of its citizens, science policy's goal is to consider how science and technology can best serve the public.

State policy has influenced the funding of public works and science for thousands of years, particularly within civilizations with highly organized governments such as imperial China and the Roman Empire. BCE , and Shi Chi 4th c.

In China, such state-supported infrastructure and scientific research projects date at least from the time of the Mohists , who inspired the study of logic during the period of the Hundred Schools of Thought and the study of defensive fortifications like the Great Wall of China during the Warring States period.

In the 17th century, in Great Britain , governmental approval of the Royal Society recognized a scientific community which exists to this day. The professionalization of science, begun in the 19th century, was partly enabled by the creation of such scientific organizations, including the National Academy of Sciences , the Kaiser Wilhelm Institute , the Chinese Academy of Sciences , and state funding of universities of their respective nations.

Public policy can directly affect the funding of capital equipment and intellectual infrastructure for industrial research by providing tax incentives to those organizations that fund research. Vannevar Bush , director of the Office of Scientific Research and Development for the United States government, the forerunner of the National Science Foundation , wrote in July that "Science is a proper concern of government.

Scientists usually take for granted a set of basic assumptions that are needed to justify the scientific method: The belief that scientific theories should and do represent metaphysical reality is known as realism. It can be contrasted with anti-realism , the view that the success of science does not depend on it being accurate about unobservable entities such as electrons.

One form of anti-realism is idealism , the belief that the mind or consciousness is the most basic essence, and that each mind generates its own reality. There are different schools of thought in philosophy of science. The most popular position is empiricism , [l] which holds that knowledge is created by a process involving observation and that scientific theories are the result of generalizations from such observations.

This is necessary because the number of predictions those theories make is infinite, which means that they cannot be known from the finite amount of evidence using deductive logic only. Many versions of empiricism exist, with the predominant ones being Bayesianism [] and the hypothetico-deductive method. Empiricism has stood in contrast to rationalism , the position originally associated with Descartes , which holds that knowledge is created by the human intellect, not by observation.

Popper rejected the way that empiricism describes the connection between theory and observation. He claimed that theories are not generated by observation, but that observation is made in the light of theories and that the only way a theory can be affected by observation is when it comes in conflict with it.

Another approach, instrumentalism , colloquially termed "shut up and multiply," [] emphasizes the utility of theories as instruments for explaining and predicting phenomena. Consequences, theoretical entities, and logical structure are claimed to be something that should simply be ignored and that scientists shouldn't make a fuss about see interpretations of quantum mechanics. Close to instrumentalism is constructive empiricism , according to which the main criterion for the success of a scientific theory is whether what it says about observable entities is true.

Paul Feyerabend advanced the idea of epistemological anarchism , which holds that there are no useful and exception-free methodological rules governing the progress of science or the growth of knowledge and that the idea that science can or should operate according to universal and fixed rules are unrealistic, pernicious and detrimental to science itself. He also contended along with Imre Lakatos [ discuss ] that the demarcation problem of distinguishing science from pseudoscience on objective grounds is not possible and thus fatal to the notion of science running according to fixed, universal rules.

Finally, another approach often cited in debates of scientific skepticism against controversial movements like " creation science " is methodological naturalism. Its main point is that a difference between natural and supernatural explanations should be made and that science should be restricted methodologically to natural explanations.

Instead, supernatural explanations should be left a matter of personal belief outside the scope of science. Methodological naturalism maintains that proper science requires strict adherence to empirical study and independent verification as a process for properly developing and evaluating explanations for observable phenomena.

A scientific theory is empirical [l] [] and is always open to falsification if new evidence is presented. That is, no theory is ever considered strictly certain as science accepts the concept of fallibilism. He wrote that scientific knowledge "consists in the search for truth," but it "is not the search for certainty All human knowledge is fallible and therefore uncertain.

New scientific knowledge rarely results in vast changes in our understanding. According to psychologist Keith Stanovich , it may be the media's overuse of words like "breakthrough" that leads the public to imagine that science is constantly proving everything it thought was true to be false. Knowledge in science is gained by a gradual synthesis of information from different experiments by various researchers across different branches of science; it is more like a climb than a leap.

Therefore, scientists adhering to proper scientific approaches will doubt themselves even once they possess the truth. Stanovich also asserts that science avoids searching for a "magic bullet"; it avoids the single-cause fallacy.

This means a scientist would not ask merely "What is the cause of This is especially the case in the more macroscopic fields of science e. An area of study or speculation that masquerades as science in an attempt to claim a legitimacy that it would not otherwise be able to achieve is sometimes referred to as pseudoscience , fringe science , or junk science.

There can also be an element of political or ideological bias on all sides of scientific debates. Sometimes, research may be characterized as "bad science," research that may be well-intended but is actually incorrect, obsolete, incomplete, or over-simplified expositions of scientific ideas.

The term " scientific misconduct " refers to situations such as where researchers have intentionally misrepresented their published data or have purposely given credit for a discovery to the wrong person. The scientific community is the group of all interacting scientists, along with their respective societies and institutions. Scientists are individuals who conduct scientific research to advance knowledge in an area of interest. In modern times, many professional scientists are trained in an academic setting and upon completion, attain an academic degree , with the highest degree being a doctorate such as a Doctor of Philosophy PhD , [] Doctor of Medicine MD , or Doctor of Engineering DEng.

Many scientists pursue careers in various sectors of the economy such as academia , industry , government , and nonprofit environments.

Scientists include experimentalists who mainly who perform experiments to test hypotheses and theoreticians who mainly develop new models to explain existing data and predict new results.

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. The Nobel Prize , a widely regarded prestigious award, [] is awarded annually to those who have achieved scientific advances in the fields of medicine , physics , chemistry , and economics.

Some scientists have a desire to apply scientific knowledge for the benefit of people's health, nations, environment, or industries. Learned societies for the communication and promotion of scientific thought and experimentation have existed since the Renaissance. International scientific organizations, such as the International Council for Science , have since been formed to promote cooperation between the scientific communities of different nations.

Many governments have dedicated agencies to support scientific research. Prominent scientific organizations include the National Science Foundation in the U. Many scientists belong to a learned society that promotes their respective scientific discipline , profession , or group of related disciplines. Most scientific societies are non-profit organizations , and many are professional associations. Their activities typically include holding regular conferences for the presentation and discussion of new research results and publishing or sponsoring academic journals in their discipline.

Some also act as professional bodies , regulating the activities of their members in the public interest or the collective interest of the membership. Scholars in the sociology of science [ who?

Science has historically been a male-dominated field, with some notable exceptions. Ladd"; Christine "Kitty" Ladd completed the requirements in , but was awarded her degree only in , after a career which spanned the algebra of logic see truth table , color vision, and psychology. The achievements of women in science have been attributed to their defiance of their traditional role as laborers within the domestic sphere. In the early part of the 21st century, in America, women earned However, when it comes to the Physical Sciences, Geosciences, Math, Engineering, and Computer Science, women earned less than half the degrees.

The mass media face a number of pressures that can prevent them from accurately depicting competing scientific claims in terms of their credibility within the scientific community as a whole. Determining how much weight to give different sides in a scientific debate may require considerable expertise regarding the matter.

Many issues damage the relationship of science to the media and the use of science and scientific arguments by politicians. As a very broad generalisation, many politicians seek certainties and facts whilst scientists typically offer probabilities and caveats.

However, politicians' ability to be heard in the mass media frequently distorts the scientific understanding by the public. Examples in the United Kingdom include the controversy over the MMR inoculation , and the forced resignation of a Government Minister, Edwina Currie , for revealing the high probability that battery farmed eggs were contaminated with Salmonella. John Horgan , Chris Mooney , and researchers from the US and Canada have described Scientific Certainty Argumentation Methods SCAMs , where an organization or think tank makes it their only goal to cast doubt on supported science because it conflicts with political agendas.

From Wikipedia, the free encyclopedia. This article is about the general term. For other uses, see Science disambiguation. Game theory Decision theory.

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Forensics Forestry Library science. Glossaries of science and engineering. History of science in early cultures. History of science in classical antiquity. Science in the medieval Islamic world.

Natural science and Outline of natural science. Social science and Outline of social science. Formal science and Outline of formal science.

Mathematics and Formal science. Science policy , History of science policy , and Economics of science. Human timeline and Life timeline. Public awareness of science , Science outreach , and Science communication. Science is not done by consensus.

Consensus is the stuff of politics; debate is the stuff of science. Science is never settled. In , Agassiz accepted a position at Harvard University and moved to the United States, where he helped found the National Academy of Sciences, the American Association for the Advancement of Science, and served as a regent of the Smithsonian Institution. In particular, Portuguese and Spanish explorers made ocean voyages in search of alternative trade routes to the Indies, the source of gold, silver and spices.

When the clumping involves red blood cells, the process is called hemagglutination. Agricola wrote several influential geological manuscripts, including De Natura Fossilium , De Ortu et Causis Subterraneorum and De Re Metallica published posthumously in The later is his most influential work, being a compendium of everything then known about mining, including but not limited to equipment, methods of surveying for and extracting minerals, mine administration, and the occupational diseases of miners.

Agronomy includes the study of farming practices: Alhazen made significant contributions in the fields of astronomy, mathematics, medicine, and most significantly, optics. His work in optics irrefutably proved that vision is a function of external light rays entering the human eye; and his rigorous and quantitative approach formed the basis of the modern experimental method in science.

Common alkaloids include caffeine, nicotine, and codeine. Alkanes contain no carbon-carbon multiple bonds; common examples include methane and propane.

Alkenes contain at least one carbon-carbon double bond; common examples include ethylene. Alkynes contain at least one carbon-carbon triple bond; common examples include ethyne also known as acetylene.

For example, graphite and diamond are different solids both formed by carbon. Alpha particles consist of two protons and two neutrons and thus are equivalent to helium nuclei. The alternative hypothesis is always compared to a null hypothesis H 0 , and H 1 is not accepted until statistical testing shows that it should be accepted in favor of H 0. For example, in an evaluation of data regarding the pain relieving properties of a new drug, the alternative hypothesis would state that the new drug has an effect on pain relief compared to a control.

Accepting H 1 does not indicate that the observed result or effect is large or important, simply that it is favored in terms of probability of the outcome. A lung alveolus has extremely thin walls that aid in the exchange of gases including O 2 and CO 2. The mission of AAAS is to "advance science, engineering, and innovation throughout the world for the benefit of all people.

More information about AAAS can be found on their website. The mission of ACS is "to advance the broader chemistry enterprise and its practitioners for the benefit of Earth and its people. More information about ACS can be found on their website. The mission of AGU is "to promote discovery in Earth and space science for the benefit of humanity"; the primary means of achieving that mission is through hosting two annual meetings and publishing numerous journals.

More information about AGU can be found on their website. Amino acids are essential basic building blocks of proteins. Amorphous solids are those that have no specific arrangement of atoms and usually melt over a broad temperature range and break unpredictably, producing fragments with irregular, often curved surfaces. Ampere researched metaphysics, physics, and chemistry, but he focused on mathematics, which he taught at the Ecole Polytechnique in Paris.

His key contributions to science include his work on partial differential equations, the discovery of fluorine, and studies on the wave theory of light. His most important work was the Memoir on the Mathematical Theory of Electrodynamic Phenomena, Uniquely Deduced from Experience , in which he described a mathematical derivation for the electrodynamic force law.

The Amp a measurement of electrical current is named in his honor. He posited the idea of panspermia , that life on Earth had begun as seedlings that had arrived through space from other worlds. He put forth an early idea about human origins in which humans had evolved gradually from fish. This echoes aspects of modern evolutionary theory. Named after the Andes Mountains in South America, which are the classic example of a continent-ocean convergence.

The main minerals present in andesite are plagioclase and hornblende. The word "andesite" comes from the Andes Mountains in South America, where this rock type is common. Around the world, andesitic magma erupts out of volcanoes along convergent boundaries, and its intrusive equivalent is diorite. A unit of length equivalent to 10 meters.

In physics, one of the fundamental conserved quantities in classical and quantum mechanics the others are mass, energy, and linear momentum.

Total angular momentum of a particle in quantum mechanics is the sum of the spin angular momentum and the orbital angular momentum.

The units of Planck's constant are units of angular momentum. Anomalies are described in many kinds of data, and are features of datasets that require explanation. Different antigens provoke the production of different antibodies. Antibodies fight disease by attaching themselves to antigens, destroying them or surrounding them so that they cannot attack the body. Antigens include toxins, bacteria, foreign blood cells, and cells of transplanted organs.

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Science Dictionary - Glossary of Terms & Scientific Definitions Welcome to Science Dictionary, the leading information source for defintions of terms for all different fields of .

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[noun] In science, an abstract is a brief statement of essential information contained within a document or presentation. An abstract is not an introduction, rather it concentrates the most pertinent information to .

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A science dictionary includes many technical terms with precise, specialized meanings—terms not normally found in general dictionaries—making it an invaluable . Science definition is - the state of knowing: knowledge as distinguished from ignorance or misunderstanding. How to use science in a sentence. the state of knowing: knowledge as distinguished from ignorance or misunderstanding.

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Scientific terminology is the part of the language that is used by scientists in the context of their professional activities. While studying nature, scientists often encounter or create new material or immaterial objects and concepts and are compelled to name them. Many of those names are known only to professionals. However, due to popularization of science, they gradually become part of common . Quick Reference. GLOSSARY OF SCIENTIFIC TERMS. Scientific Divisions | Animals | Elements | Ologies | Motion | Particles. absolute zero. The lowest theoretical temperature (0K = °C) where all molecular activity ceases.