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 era is divided almost equally into two time periods called the Northern Song (960â1127) and the Southern Song (1127â1279) eras. The Northern Song Empire was smaller than the Tang Empire.It didn't control an area of Central Asia that was controlled by the Tang Empire.fter about two decades of warfare, the Song capital was taken in 1276, and after three more years of fighting with remnants of the dynastic court, the empire ended in 1279. The Yuan Empire took its place. The Song Dynasty were defeated first by the Jin Empire and then by the Mongols.