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.
Frequency and pitch. In the physics of sound, frequency is defined as the number of cycles, or complete waveforms, that occur within the period of 1 second. A complete cycle is defined as one compression and rarefaction cycle. The number of cycles within a second can also be given a musical value that is called a pitch.