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The SI is a well-defined set of standards for measurement that can be checked for accuracy by various methods.

This means that all measurements can be compared with confidence: if I invent a new alloy with a particular strength, you can make that alloy and rely on the strength being the same as the value I stated.

Prior to the SI, there were several different sets of measures, and people needed to convert between them, such as converting from pounds weight to kilograms, or back the other way.

Mistakes in calculations could have dangerous outcomes, such as converting ounces to grams or grams to ounces for medicines. Get that wrong, and you would either have no effect (dose too low), or dangerous/deadly effects (dose too high).

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Related Questions

Why is SI units important to science?

SI units are important in science because they provide a standardized system of measurement that allows for consistency, comparability and reproducibility of experimental results. Using SI units ensures clear communication between scientists around the world and facilitates collaboration and advancement in various scientific fields.


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Why are si units so often in science?

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What dose SI stand for in science?

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What is the system of measurement presently used in both science and commerce?

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with the development in the field of science and technology,the need for a commonly acceptable system of units was seriously felt all over the world particularly to exchange scientific and technical information


What is the full form of SI unit in science?

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