The reason hard boiled eggs dont last as long as raw eggs is that in cooking the eggs, a natural protective chemical layer (produced by the mother hen) is washed off the porous eggshell, allowing germs to enter. Source(s): http://cookery.newarchaeology.com/how_lo... sugarice82 Â· 9 years ago.
Freebase(0.00 / 0 votes)Rate this definition: Song cycle. A song cycle is a group of songs designed to be performed in a sequence as a single entity. As a rule, all of the songs are by the same composer and often use words from the same poet or lyricist.
The Song Dynasty (960â1279) was a period of technological advances and prosperity, preceded by the fractured Five Dynasties and Ten Kingdoms Period (906â960) and succeeded by the Mongol-led Yuan Dynasty (1279â1368). It coexisted with the Liao Dynasty (907â1125) in the northeast and the Western Xia Dynasty (1038â1227) in the northwest. When the second Jin Dynasty (1115â1234) supplanted the Liao, they drove the Song south, dividing the dynasty into the Northern Song (960â1127) and the Southern Song (1127â1279) eras.