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In this sense, researchers and engineers may both be thought about technologists ; the three fields are typically considered as one for the functions of research study and referral. The precise relations in between science and technology, in specific, have been disputed by researchers, historians, and policymakers in the late 20th century, in part due to the fact that the debate can inform the financing of fundamental and used science.
An articulation of this philosophy could be found explicitly in Vannevar Bush's writing on postwar science policy, Science The Limitless Frontier: "New items, new industries, and more tasks require constant additions to understanding of the laws of nature ... This important new understanding can be gotten just through standard clinical research." In the late-1960s, however, this view came under direct attack, leading towards efforts to money science for specific jobs (initiatives withstood by the clinical community).
History Paleolithic (2. 5 Ma 10 ka) Using tools by early humans was partially a procedure of discovery and of evolution. Early humans evolved from a types of foraging hominids which were already bipedal, with a brain mass around one third of contemporary humans. Tool usage remained reasonably unchanged for many of early human history.
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Stone tools A campfire, typically used to prepare food Hominids started using primitive stone tools countless years ago. The earliest stone tools were bit more than a fractured rock, but roughly 75,000 years ago, pressure flaking supplied a way to make much finer work. Fire The discovery and usage of fire, an easy energy source with numerous extensive uses, was a turning point in the technological development of mankind.
Fire, fueled with wood and charcoal, enabled early human beings to cook their food to increase its digestibility, improving its nutrient value and broadening the variety of foods that might be eaten. Clothing and shelter Other technological advances made during the Paleolithic era were clothes and shelter; the adoption of both innovations can not be dated precisely, but they were an essential to mankind's development.