The second is defined as the duration of 9,192,631,770 cycles of the radiation associated with a specified transition of the cesium atom.
2009-03-10
martes
2009-03-09
lunes
baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka baka
T.T ..... xD
T.T ..... xD
2009-03-02
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