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Joules to kilojoules, J to kJ

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Kilograms to newtons, kg to N

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Education. Units of measurement

Guest: 2024-05-19 06:21:33

The evolution of science and technology is closely related to improvements in unit measurement, conversions, and manipulations of data. In many fields, e.g. physics and mechanics, precise measurements have enabled the observations and their dependencies that express the factual laws of nature. This is why these disciplines are often referred to as exact sciences. Many scientists and other socially active persons have emphasized the significant impact of measurements and unit usage standardization on science. For example, Galileo stated, "Measure everything that can be measured and make everything else accessible," while Lord Kelvin remarked, "Everything is known only to the extent that it can be measured." Historically, measuring technology has evolved in tandem with the objective needs of society. The earliest evidence of this relationship dates back to the fifth millennium BC, when the growing exchange of goods necessitated simple measures of length, volume, and mass.

As society progressed, so did measurement technology. The industrial revolution of the 18th and 19th centuries, driven by the introduction of machines, led to significant advancements in linear measurement technology and the measurement of electrical quantities. The scientific and technological revolution of the 20th century, marked by the widespread automation of control and production processes, resulted in a notable rise in measurement technology across various domains. Data conversions and unit converters became even more important. The historical development of measurements has occurred both extensively and intensively. Modern mechanized, and in some cases fully automated, industrial production relies on advanced measurement techniques. This requires comparatively high costs for monitoring, and the demands for quality, reliability, and speed in measurements are continually increasing. In recent years, the measurement ranges for certain physical quantities have expanded by several orders of magnitude. In the 20th century, the social conditions of increasingly complex commodity exchange have affected the jet-propelled development of measurement technology. In this case, it is necessary to consider the increasing role of specialization and production cooperation on a national and international scale. In industrialized countries, the labor intensity associated with monitoring and measurements accounts for about 10 to 15% of the total labor intensity of all social production. In specific industries, such as the manufacturing of electronic assemblies and their components, this share is notably higher and continues to rise.

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