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*aka ‘unit of time’*
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*a time unit is any particular ‘time interval’, used as a ‘standard way’ of ‘measuring’ (or ‘expressing’) ‘duration’*
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(the base unit of time in the ‘international system of units’ (SI), and by extension most of the ‘western world’, is ‘the second’, defined as about ‘9 billion ‘oscillations” of the ‘caesium atom’)
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(the exact modern definition (from the ‘national institute of ‘standards’ + ‘technology” is) –>
“the ‘duration’ of ‘9,192,631,770 periods’ of the ‘radiation’ corresponding to the ‘transition’ between the ‘2 hyperfine levels’ of the ‘ground state’ of the ‘caesium-133 atom’)
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(historically, ‘units of time’ were defined by the ‘movements’ of ‘astronomical objects’) –>
“sun-based units”
(the ‘year’ was the time for the ‘earth’ to rotate around the ‘sun’)
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(‘year-based units’ include) –>
“the olympiad”
(= ‘4 years’)
“the lustrum”
(= ‘5 years’)
“the decade”
(= ’10 years’)
“the duo”
(‘jogan’ for ’12 years’)
“the indiction”
(’15 years’)
“the century”
(‘100 years’)
“the millenium”
(‘1000 years’)
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“moon-based units”
(the ‘month’ was based on the moon’s ‘orbital period’ around the ‘earth’)
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“earth-based units”
(the time it took for the ‘earth’ to ‘rotate’ on its own ‘axis’, as observed on a ‘sundial’)
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(‘units’ originally derived from this ‘base’ include…)
“the week”
(= ‘7 days’)
“the fortnight”
(= ’14 days’)
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(‘subdivisions’ of the ‘day’ include) –>
“the hour”
(‘1/24’ of a ‘day”)
which is further subdivided into…
“the minute”
(‘1/60’ of an ‘hour’)
(‘1/1440’ of a ‘day’)
which is further subdivided into…
“the second”
(‘1/60’ of a ‘minute’)
(‘1/3600’ of an ‘hour’)
(‘86,4000’ of a ‘day’)
(~ 31,536,000 seconds in a ‘year’)
((well over) 31 million’ seconds in a year’)
(train yourself to ‘count’ by ‘second’ without a ‘stopwatch’)
(the ‘second’ became the ‘international standard unit’ (‘SI units’) for ‘science’)
“celestial sphere-based units’ –>
(similar to ‘sidereal time’?)
(where the ‘apparent movement’ of the ‘stars’ and ‘constellations’ across the ‘sky’ is used to calculate the length of a ‘year’)
(‘sidereal time’ is based on the ‘day’)
(these ‘units’ do not have a ‘consistent relationship’ with each other and require ‘intercalation’)
(for example, the ‘year’ cannot be divided into ‘twelve 28-day months’ since ’12’ times ’28’ = ‘336’, well short of ‘365’)
(the ‘lunar month’ (as defined by the moon’s ‘rotation’) is not ’28 days’ but ‘28.3 days’)
(the ‘year’ (defined in the ‘gregorian calendar’ as ‘365.24 days’) has to be adjusted with ‘leap days’ and ‘leap seconds’)
(consequently, these ‘units’ are now all defined as ‘multiples’ of ‘seconds’)
(‘units’ of ‘time’ based on ‘orders of magnitude’ of the ‘second’ include the ‘nanosecond’ + the ‘millisecond’)
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“PURPOSE” –>
“create a perfect cycle into ‘infinity’)
(‘perfect circles’)
(optimize your 3 ‘flows’)
(‘research’ / ‘productivity’ / ‘artistic’)
(with ‘artistic flow’ based on expression of ’emotions’)
(depending on one’s current ‘mood’ and how to control and utilize moods for ‘maximal ‘explanatory’ / ‘efficiency’ / ‘expression’)
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“the 3 E s’
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*π¨βπ¬π΅οΈββοΈπββοΈ*SKETCHES*πββοΈπ©βπ¬π΅οΈββοΈ*
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ππ|/\-*WIKI-LINK*-/\|ππ
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πππββTIME MEASUREMENTβ* β πππ
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πππππ€ππ€ππ€ππ€β€οΈπππ§‘β£οΈπππβ£οΈπ§‘ππβ€οΈπ€ππ€ππ€ππ€ππππ
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*πβ¨ *TABLE OF CONTENTS* β¨π·*
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π₯π₯π₯π₯π₯π₯*we won the war* π₯π₯π₯π₯π₯π₯