The rule is that a sample is safe when its radioactivity has dropped below detection limits. And that occurs at 10 half-lives. So, if radioactive iodine-131 (which has a half-life of 8 days) is injected into the body to treat thyroid cancer, itâll be âgoneâ in 10 half-lives, or 80 days.
The term 'ratchet' has no less than two distinct meanings. As an adjective, it describes a person, usually a woman, or activity, who is out of hand, out of control, generally whack in some way, dirty, ghetto, unattractive, Crucian, or just generally disliked.
Ratchet & Clank is an upcoming 3D computer-animated science fiction action comedy movie. It will be directed by Jericca Cleland and Kevin Munroe. The movie is based on the platforming video game series of the same name. The movie was originally scheduled to be released in 2015.