Progeria, also known as Hutchinson-Gilford progeria syndrome (HGPS), is a rare genetic condition that causes a child's body to age fast.Most kids with progeria do not live past the age of 13. The disease affects both sexes and all races equally.rogeria, also known as Hutchinson-Gilford progeria syndrome (HGPS), is a rare genetic condition that causes a child's body to age fast.
Pentatonix is made up of Avi Kaplan, a most distinctive bass; Kevin Olusola, the vocal percussionist or the beatboxer; Kirstie Maldonado, the mezzo soprano and only girl in the line-up; Mitch Grassi who does both tenor and counter-tenor voices; and Scott Hoying, the baritone who sings lead most of the time.
There are instruments that use wind to produce and you will have to blow wind into the instrument. These types of instruments are created on the principle of valves that covers the holes of the instrument instead of your fingers. They have cone shaped tubes and a bell that is flared.iolin (Image source: sxc.hu). The string instruments are used to produce sound with the help of vibration. The strings are to be pulled or plucked. The mode of use to create the vibration makes the difference in different string instruments.