Pronounced "siz-i-jee" refers to planets coming into alignment in astronomy. When the Sun and Moon are lined up on the same side of the Earth, this state of syzygy creates higher and lower tides than are normally experienced.
02 JAN 2011 by ideonexus
The Importance of Time-Stamping to Relevance
Time-stamping is of interest because the temporal element of context is essential for understanding a text (to take an obvious example, when reading a paper on global geopolitics in 2006 it is essential to know whether it was written before or after 11th September, 2001). Furthermore, some information has a 'sell-by date': after a certain point it may become unreliable. Often this point isn't predictable exactly, but broad indications can be given; naturally much depends on whether the inform... 1 
notes
notesTime-stamping is a crucial function of semantic data. Some information grows less accurate over time, while a context is desired for other data.
