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.
No Tabs. The meaning of the slang word 'Ratchet' is subjective. Ratchet has been used by many artists in their songs, and the meaning tends to differ from artist to artist. Itâs mostly used in the hip hop culture, some have used âratchetâ as a positive word, and others as a defamatory word.The word is often mistaken as coming from the word âwretchedâ which means someone whoâs miserable and has poor character.hough different artists put different meaning behind the word ratchet in their songs, majority of the public uses the word in more of a defamatory way to describe any women whom are deemed to be ghetto, lack values and morals, dirty, annoying, etc..