• dan@upvote.au
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    7 hours ago

    Practically everyone should know SI, or have at least heard of it before. It’s the standard system of measurement used in most of the world. It includes base units for time (seconds), distance (meters), mass (kilograms), electric current (amps), temperature (Kelvin), amount of a substance (mole) and intensity of light (candela), plus a bunch of units derived from these.

    It’s practically only the USA that doesn’t use some of three units (for example, preferring feet over meters)

    ISO is a standards body. They define a bunch of standards. One of the more well-known ones is ISO 8601, which defines standards for dates and times. It specifies that weeks start on Monday.