はんげんき
半減期
1. half lifePhysics, Chemistry
2. Half-lifeHalf-life, abbreviated t½, is the period of time it takes for the amount of a substance undergoing decay to decrease by half. The name was originally used to describe a characteristic of unstable atoms, but it may apply to any quantity which follows a set-rate decay. The original term, dating to 1907, was "half-life period", which was later shortened to "half-life" in the early 1950s.
Read “Half-life” on English Wikipedia
Read “半減期” on Japanese Wikipedia
Read “Half-life” on DBpedia
Read “Half-life” on English Wikipedia
Read “半減期” on Japanese Wikipedia
Read “Half-life” on DBpedia
Discussions
Log in to talk about this word.