A good one, well cared-for, can last for many years.Irish pipers often must master the art of reed making, as well as reed adjustment and maintenance. Trust me, this is no simple task. In conclusion, each of the traditions of bagpiping is replete with a body of repetoire, technique and playing opportunities. Of late, there have been more and more interchanges between the two, as it is quite possible to set Irish melodies on the Scottish chanter, and visa-versa. Bagpipers occupy a somewhat rarified world, inhabited by devotees and connoisseurs, as well as practitioners.
noun, plural: half-lives. (1) Biological half-life, i.e. the period in which the amount of substance inside the living organism is metabolized and eliminated half of its initial amount by normal biological process.
The half life of a radioactive element is the time it takes for half of a sample of the element to break down. For example, suppose that scientists made 10 grams of einsteinium. About three weeks later (20.47 days later), only 5 grams of the element would be left.