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' is the new fad in rap music Anthony Nathan The State Hornet. In 2001, Jay-Zâs album âThe Blueprintâ introduced me to a world of clever wordplay, catchy hooks and a sound that was reminiscent of the days of Al Green and The Jackson 5.hile its popularity can be backed by its position on the charts, ratchetâs appeal is a little more convoluted. There is definitely an intangible factor that makes a great ratchet song; otherwise, there wouldnât be suburban kids present at the shows.