![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhir9IfIKZsYyBdhSFu4QUlmRFf-bKd4OUKbM84aetombE9bTyKxF4ALtcvBGsNK-I-nRzME9-ZDLp33xh2fTeH2cff03CNaTQMTt2iAKD2eslRbZ1kc4-LYgPyVw719FNGqc95E7vrCbY/s800/Severin+%253A+Sofie.jpg)
Times are running more or less in the same intervals (or the SI base unit) = seconds
The official SI definition of the second is as follows:
Just for your information.The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.
When looking at images of myself taken with an interval of 45 Julian years (aprox. 1 420 092 000 seconds) I certainly see the diference,
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2250tgQe3Y3hWnHfWKFnro1lUHb52uIAucndRNNqCFyT19qTW0ED63CnlqngdLKxMApyotTf0fmpKBGajVJpG6Lm2hNwIXMLGfs-NvB_EA5iN52IeqNGXMBr89s1kJ034cL6s5VFbpVQ/s200/studen.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkAZLNRcXR_mJ-ttZZe9TPWz0hQo0HRDQ_Uy8jqpd9FnoPRc9Fbp0XPTRXusM7ptFr2BbVX_TSFRrP1otbbD7fw308Oviw-GsOdmKao1ueFlF8y9l0rBo-IQ_2CIHWz76-93CTalh_TQw/s200/Ullev%25C3%25A5lseter.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1qCv9wH6Vyqcf2g4z93WvTN82ESYWvl8WDjRS0G0yuwuNbniV2NqIbT5fMctU1eIOCxrJy1hVliN3cxXgaTyvsgr8C6t3-ddCHGRiIv5Y_rw2jw5UqOdYrxCvBe9rR4dgeez4q_Y-b80/s800/A+Mormor%252C+morfar.jpg)
I don´t know, but it gave me an opportunity to make a blogpost presenting some old photos of my mother´s parents, and that was the main objective.
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