Technology is usually understood as having a primarily practical concern with altering the world, while science has a cognitive concern with knowing it.(see tech philos) In this sense, technology is more a "knowing how" than a "knowing that." (following the distinction made by Gilbert Ryle.)
But technology is not "applied science." Practices often come before formalization in science. Contemporary historical revision suggests that "science owes more to the steam engine than the steam engine owes to science." (Rachel Laudan, ed. The Nature of Technological Knowledge, p.9) The science of thermodynamics developed by Sadi Carnot arose as an interpretation of the work cycle performed by the invention of the steam engine, as developed by Newcomen, Watt, and Trevithick.
Martin Heidegger suggested a similar inversion of the science-technology relation when he claimed that: "Because the essence of modern technology lies in enframing, modern technology must employ physical science. Through so doing the deceptive illusion arises that modern technology is applied science." See tool.
A primary theme in discussing technology would be that the separation between knowing and altering is not clear-cut. (cf. control) Francis Bacon suggested that science should both intervene and represent. (see Ian Hacking)
A more balanced but narrower account of science as both theoretical and experimental deals with the technologies (eg. instruments) of science. This focus on the instruments describes the basis for a move away from unmediated perception in the development of a paradigm of technologically mediated science, that recognizes the role of scientific instruments to enhance perception and constitute new perceptual objects.
For the Greeks, techné was a practical rationality governed by a conscious goal. (see instrumentality ) Michel Foucault calls a techné a "practice" or a savoir-faire , that by taking general principles into account would guide action in its time, according to its context, and in view of its ends. Plato distinguished between two types of techne : one that consisted mainly of physical work and another that was closely associated with speech. Thus the use of technology to refer to literary and social practices stresses that they are knowledge-producing tools. (see Carl Mitcham, in Bugliarello and Doner, History and Philosophy of Technology, pp 172-5) In this sense, one can talk of material technologies, literary technologies, and social technologies. One very important dimension of social technologies is their reproducibility. Bureaucracies, discourses, disciplines, etc. all serve to enable this automatic reproducibility. Is it accurate to speak of "knowledge technologies?" (as opposed to information technologies) Would one have to draw the line at "truth-technologies"?
Daniel Bell uses Harvey Brooks' definition of technology as "the use of scientific knowledge to specify ways of doing things in a reproducible manner." (in The Coming of Post-Industrial Society) Bell sees the novel and central feature of post-industrial society as the codification of theoretical knowledge and the new relation of science to technology. He describes the new "post-industrial" society" as run by "intellectual technology" (based on mathematics and linguistics) which uses algorithms (decision rules), programming (software), and models and simulations. (Forward 1999, p. xvii.) Bell demurs at speaking of "knowledge technologies", because he believes that knowledge is a form of judgement. Manuell Castells describes the new " informational mode of development" as resulting from the rise of the informational paradigm and its convergence with capitalist restructuring. For Castells, it is not enough to call the new informational mode of development "post-industrial." This does not do justice to the new historic era, and would be like calling industrial society "post-agrarian."
Does "technology" refer to an autonomous phenomenon with its own dynamic, what the Futurists described as "an unhaltable trend to constantly accelerating change," or does it refer rather to an ensemble of instruments wholly subservient to human will and needs? In other words, can technology be controlled, or has it become autonomous and out of control? And if it is controllable, how, and under what authority? (see Langdon Winner)
The issue of the control of technology can be framed by Freudian theories of the instincts, such as those developed in Civilization and its Discontents. For Freud, the evolution of civilization presents the struggle between Eros and Death, between the instinct of life and the instinct of destruction, as it works itself out in the human species. (p. 69) Thus, "the diversion of primary destructiveness from the ego to the external world feeds technological progress, and the use of the death instinct for the formation of the superego achieves the punitive submission of the pleasure ego to the reality principle and assures civilized morality." (Marcuse, Eros and Civilization, p.52)
For technology as an extension of the body, see body image, prosthesis, and tool. see also embodiment
"Technology abstracts from the manifold connections that things, events, processes, and actions have to historically shaped and culturally specified forms of life, and views them only under the aspect of their utility."Human creations that alter or manage what is construed to be the natural environment are defined as instrumental.
We should distinguish technology from technics, and technics from techniques. Technics refers to any human activity employing artifacts to attain some result within the environment. It is essentially specialization. Technics is the general object of a history of techniques. Is all investigation and knowledge technical? Technology becomes a techno-logy that would constitute a theory of the evolution of technics. Marx outlined a new perspective of this kind.
Heidegger distinguishes techné / poesis from instrumental technology. Both Marcuse and Ellul equated technology with calculative, "rational" techniques which dominate both culture and nature. For Ellul, " technique transforms everything it touches into a machine." (The Technological Society, p.4). and "has become the new and specific milieu in which man is required to exist." (p.10) (see also geometry)
