Mark's definitions
by Mark May 13, 2005
Get the giner mug.1 : the time required for half of something to undergo a process: as a : the time required for half of the atoms of a radioactive substance to become disintegrated b : the time required for half the amount of a substance (as a drug or radioactive tracer) in or introduced into a living system or ecosystem to be eliminated or disintegrated by natural processes
2 : a period of usefulness or popularity preceding decline or obsolescence <slang usually has a short half-life>
2 : a period of usefulness or popularity preceding decline or obsolescence <slang usually has a short half-life>
For americium-241, it is known that half of the atoms decay in 458 years. Therefore, 458 years is the half-life of americium-241. Every radioactive element has a different half-life, ranging from fractions of a second to millions of years, depending on the specific isotope. For example, americium-243 has a half-life of 7,370 years.
by Mark January 6, 2004
Get the Half Life mug.A noun or adjective describing a person, usually male and under the age of 18, who is quasi-suicidal because mom asked him to clean his room. He holds his friends hostage with his unending threats of self-termination, and maintains a LiveJournal into which he posts some truly hideous poetry. He is only truly happy when he is sad and when all his friends have been driven away by the imaginary black clouds over his head.
current music: Linkin Park - In the End
current mood: depressed
I hate my life;
I want to cry;
I want to curl up and die ~_~
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Comments from users:
You darn Saberslash. signed, everybody
current mood: depressed
I hate my life;
I want to cry;
I want to curl up and die ~_~
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Comments from users:
You darn Saberslash. signed, everybody
by Mark March 25, 2005
Get the saberslash mug.by Mark June 21, 2004
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Get the wetherell mug.by Mark December 1, 2003
Get the Dirty Bird mug.Some guy who runs TWL formally known as big whitey plays for US......Claims he is better looking then g money.
by MArk May 28, 2003
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