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How is measuring distance between cities in metres impractical? That's exactly how sane part of the world measures it. Though kilo-, giga- and other prefixes fo
by mathfailure 6y ago
How is measuring distance between cities in metres impractical?
That's exactly how sane part of the world measures it.
Though kilo-, giga- and other prefixes for units may be used when needed (when rounding is acceptable for the purpose of reducing the number to reduce the overall length of words needed to describe the measure).
- adtac 6y agoI'm a part of the sane part of the world :) But it's more practical because if you know the Wh of a battery and you know the wattage of a power brick (simply V*I), you can quickly calculate the number of hours it will take to charge the battery from 0 to 100. Knowing the number of seconds isn't very useful to humans because battery charging is usually in the order of hours. Of course, machines should always use Joules internally.