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In this sense, scientists and engineers might both be considered technologists ; the three fields are often considered as one for the purposes of research and referral. The specific relations between science and innovation, in particular, have actually been debated by scientists, historians, and policymakers in the late 20th century, in part since the dispute can inform the funding of basic and used science.
An articulation of this viewpoint might be discovered clearly in Vannevar Bush's treatise on postwar science policy, Science The Unlimited Frontier: "New items, brand-new industries, and more tasks need constant additions to understanding of the laws of nature ... This essential new knowledge can be acquired just through fundamental scientific research study." In the late-1960s, nevertheless, this view came under direct attack, leading towards efforts to fund science for particular tasks (efforts withstood by the scientific neighborhood).
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History Paleolithic (2. 5 Ma 10 ka) Using tools by early people was partly a process of discovery and of development. Early humans developed from a types of foraging hominids which were already bipedal, with a brain mass approximately one third of contemporary people. Tool usage remained fairly unchanged for most of early human history.
Stone tools A campfire, typically used to prepare food Hominids started using primitive stone tools millions of years earlier. The earliest stone tools were little bit more than a fractured rock, but around 75,000 years ago, pressure flaking offered a method to make much finer work. Fire The discovery and use of fire, an easy energy source with lots of extensive usages, was a turning point in the technological evolution of humankind.
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Fire, sustained with wood and charcoal, enabled early humans to prepare their food to increase its digestibility, enhancing its nutrient worth and broadening the variety of foods that might be consumed. Clothes and shelter Other technological advances made during the Paleolithic era were clothing and shelter; the adoption of both innovations can not be dated exactly, but they were an essential to mankind's development.