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Units of Measurements in Space and on Celestial bodies?
Meter etc for distance, kilo etc for weight , liter for liquids, are all units of measurement on Earth
Must we use same or different measures and weights in space and on other celestial bodies when their size, orbit, rotation are different?
We understand that human beings on Earth can conceive reality with Earth’s existing systems.
All measurements are relative and not absolute.
They have to do with the cognition of the observer (human being?) on a celestial body or space.
1. Meter and metric system has to do with the 5+5 fingers (Arabic system) on Earth
2. Kilogram as above
3. Time is measurement of motion and relative to:
a. Day: Earth’s rotation creating the day (and night)
b. Month: Moon’s (Earth’s satellite) orbit around Earth creating the time of month (28 days, 7 days a week, used now as 30–31 days etc for known reasons).
c. Year: Earth’s orbit around the Sun creating/corresponding to the 365(¼) rotations (days)
d. Hour is connected to the rotation.
e. Light Year: As above depending on the Earth’s orbit.
Cannot we create universal time in a different way and not with reference to Earth?.
I mean that the reality is different in the Universe (As my father used to say 55 years ago)
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