Half life get down
#HALF LIFE GET DOWN MODS#
Accusations are flying that the developers used assets from several mods without permission. The first (and arguably most serious since it is a legal issue) is that Royal Rudius Entertainment has violated numerous copyrights. There are two specific complaints against the game. Scrolling through the reviews and digging through the forums, it becomes clear very quickly why players are mad. The game has raised the ire of Half-Life fans to unprecedented levels. Hunt Down The Freeman (HDTF) launched on Steam about a week ago and has already generated 291 negative reviews out of a total 351. The title retails for $25 on Steam but is currently being offered at a 15 percent discount until March 2.
#HALF LIFE GET DOWN MOD#
To be clear, this is not a mod of Half-Life it is a game licensed and built on the Source engine. although it may take a surprisingly long time.Royal Rudius Entertainment’s Hunt Down The Freeman is a game set in the Half-Life universe. The answer to the original question, then, is "no", the half-life does not mean something can never decay away completely. At this point, all the iodine-131 we started with has gone, we've got 1 g (well, near enough) of xenon-131 instead. But we can be pretty confident it will eventually decay. if you have 1 radioactive nucleus, there is a 50/50 chance of its decaying within one half-life, and if it doesn't then there's a 50/50 chance of its decaying in the following half-life, and so on. Now, we're down to one radioactive atom, and this is where it really becomes clear that to say that "It just keeps reducing to half after a fixed time" no longer applies: A nucleus either decays or it doesn't. After 70 half lives (about 570 days, or a year and a half), however, we might expect to be down to about 4 unstable nuclei, and another 8 days after that, two, and another 8 days after that, just one (note that because this is a random process by the time we get down to small numbers like this it's not really reasonable to assume that it'll all fall out neatly like this, but that's the general ballpark. After another 8.14 days, there are about 1.2 x 10 21 unstable nuclei. After 8.14 days, there are about 2.3 x 10 21 unstable nuclei. 1 g of iodine-131 contains about 4.6 x 10 21 unstable nuclei. Iodine-131 has a half-life of about 8 days (actually more like 8.14). However, it is only an average, and once you get down to very small numbers the average only provides a very rough guide.
So if the half-life is 1 year, then after 3 years there will be (roughly) 1/8 of the original number of unstable nuclei in the sample. The half-life of a radioactive element means that, on average, half of the unstable nuclei will decay within one half-life. If a very small amount is synthesized, perhaps a few atoms, then it can completely decay in a manner of minutes. Likewise, some of the more unstable synthetic elements and decay chain products may have a halflife of less than a second. And that one actually often finds more Carbon-14 in coal than might be otherwise expected due to radioactive in nearby rocks. While you may find some carbon 14 in a 500 million year old coal deposit, it would be exceptionally scarce, beyond our ability to read. And the fraction of the original concentration is now 1/(2 10000) Which is about 5.012372749Ă—10 -3011 Needless to say, that is a lot of zeros. That would mean that it has gone through 10,000 half lives. But, say we have a coal deposit that is 570 million years old. The Carbon 14 on the surface of the Earth is almost all generated in the sun and stars and arrives here via solar wind and cosmic rays. These then could potentially be considered separate from the background. However, there are also some elements that are only found as synthetic nuclear reactor byproducts. We consider a radioactive isotope to have decayed to zero when it reaches background. There is a certain amount of radiation that is considered "background radiation". Except that one is truly dealing with discrete atoms, so eventually the last one could possibly decay away. It never completely goes away, although over time the concentration will become so low that it may be undetectable.