• Decay
  • Rutherford applied the principle of a radioactive element's half-life to studies of age determination of rocks by measuring the decay period of radium to lead-206. (wikipedia.org)
  • Half-life is constant over the lifetime of an exponentially decaying quantity, and it is a characteristic unit for the exponential decay equation. (wikipedia.org)
  • A half-life usually describes the decay of discrete entities, such as radioactive atoms. (wikipedia.org)
  • N(t) is the quantity that still remains and has not yet decayed after a time t, t1⁄2 is the half-life of the decaying quantity, τ is a positive number called the mean lifetime of the decaying quantity, λ is a positive number called the decay constant of the decaying quantity. (wikipedia.org)
  • There is a half-life describing any exponential-decay process. (wikipedia.org)
  • In radioactive decay, the half-life is the length of time after which there is a 50% chance that an atom will have undergone nuclear decay. (wikipedia.org)
  • In it he explains that this churn of knowledge is like radioactive decay: you cannot predict which individual fact is going to succumb to it, but you can know how long it takes for half the facts in a discipline to become obsolete. (wikipedia.org)
  • Game
  • As suggested by the end of Episode Two , the Borealis is expected to be focal point of the next Half-Life game . (combineoverwiki.net)
  • The game is set in a fictional world resembling the Middle Ages and offers similar gameplay combat to the developer's previously released Half-Life 2 mod, Age of Chivalry. (wikipedia.org)
  • That original game was followed by Counter-Strike: Condition Zero, developed by Turtle Rock Studios and released in 2004. (wikipedia.org)
  • While the original release only included a version for Microsoft Windows, the game eventually received a port to OS X on June 23, 2010 with a Linux port afterwards in 2013. (wikipedia.org)
  • The game, initially released as a mod in January 1999, and created by Daniel "Sven Viking" Fearon, enables players to play together on online servers to complete levels, many which are based on the Half-Life universe but include other genres. (wikipedia.org)
  • The game can also be played in single player mode, taking advances of improvements over the original Half-Life that were made by the modifications, particularly for the artificial intelligence used by non-player characters. (wikipedia.org)
  • This idea was scrapped in the original game but recycled for Half-Life 2: Episode Two, where a lab assistant of the same species is named Uriah. (wikipedia.org)
  • attempts
  • It is also worth noting that while the player is merely stopped from moving into a Force Field, going closer will actually cause a discharge to other unauthorized persons, as seen in the Half-Life 2 chapter Entanglement where Alyx Vance attempts futilely to stop Judith Mossman making off with Eli Vance . (combineoverwiki.net)
  • Although it was determined Strauss could in no way have avoided the accident, the book details his attempts, over half his life, to come to terms with his feelings of responsibility. (wikipedia.org)
  • remake
  • Released only eight months after Condition Zero, Source was a remake of the original Counter-Strike and the first in the series to run on Valve's newly created Source engine. (wikipedia.org)
  • Many Filipino Alternative-music enthusiasts fondly remember Half Life Half Death for its quirky remake of "High School (Life)," a '70s Pop song written by the Filipino composer George Canseco for the Filipina actress/singer Sharon Cuneta. (wikipedia.org)
  • initially
  • During live performances, haLf man haLf eLf was initially comprised by mella and a backup of friend musicians who included Roy Gutierrez (guitars), Jason Paredes (bass), Roberto "Abet" Carino (bass), Cris Pangan (bass), Joshua Bernardo (drums), Paul "Ten-ten" Labao (drums), Edward Daquina (drums), and Jimmy Tan (lead guitars). (wikipedia.org)
  • concentration
  • The half life of a species is the time it takes for the concentration of the substance to fall to half of its initial value. (wikipedia.org)
  • In a medical context, half-life may also describe the time it takes for the blood plasma concentration of a substance to halve (plasma half-life) its steady-state. (wikipedia.org)
  • There are circumstances where the half-life varies with the concentration of the drug. (wikipedia.org)
  • Thus the half-life, under these circumstances, is proportional to[dubious - discuss] the initial concentration of the drug A0 and inversely proportional to the zero-order rate constant k0 where: t 1 2 = 0.5 A 0 k 0 {\displaystyle t_{\frac {1}{2}}={\frac {0.5A_{0}}{k_{0}}}\,} This process[clarification needed] is usually a logarithmic process - that is, a constant proportion of the agent is eliminated per unit time. (wikipedia.org)
  • Early
  • Valve was always supportive of the company using their characters, but this concept had to be scrapped early on as Valve had other plans for Kleiner for their own in-development Half-Life 2 . (combineoverwiki.net)
  • originally
  • Disposable emergency flares were also originally to appear in Half-Life , and were finally introduced in Episode One . (combineoverwiki.net)
  • Originally a shower curtain manufacturer named Aperture Fixtures , it evolved over the course of half a century into an experimental physics research institution and a bitter rival of Black Mesa . (combineoverwiki.net)
  • Half Life Half Death was originally formed in 1988 by five High school students of Sta. (wikipedia.org)
  • substance
  • The relationship between the biological and plasma half-lives of a substance can be complex depending on the substance in question, due to factors including accumulation in tissues (protein binding), active metabolites, and receptor interactions. (wikipedia.org)
  • chapter
  • The Pheropods are first introduced at the end of the Half-Life 2 chapter Sandtraps , where a Vortigaunt comes from the Vortigaunt Camp to harvest it from the Antlion Guard Freeman has just defeated. (combineoverwiki.net)
  • It is covered in Half-Life 2 's sixth chapter "We Don't Go To Ravenholm..." . (combineoverwiki.net)
  • similar
  • In a similar manner to how they utilized Gina , Gearbox wanted to try and leverage Kleiner, who until that point had only been mentioned in the original instruction manual. (combineoverwiki.net)
  • Chivalry has similar gameplay mechanics to Age of Chivalry, a Half-Life 2 mod created by the same developer, Torn Banner Studios. (wikipedia.org)
  • citation needed] The similar concept of a "half-life of facts" was coined by Samuel Arbesman, a Harvard mathematician and scholar at the Kaufmann Foundation. (wikipedia.org)
  • play
  • Synergy allows players to play through the Half-Life 2 saga, including Half-Life 2 and its episodes, in their entirety, cooperatively. (combineoverwiki.net)
  • Contrary to the common belief that Sven Co-op was developed to play through Half-Life cooperatively, Fearon had wanted to create a means for players to engage in cooperative experiences together, often just spawning in large number of enemies for them to dispatch together on a single map. (wikipedia.org)
  • different
  • Maybe being remade with the different engine might remove whatever weird effect that triggered the nausea, since Half-life 1 didn't do it. (kotaku.com.au)
  • Some substances may have different half-lives in different parts of the body. (wikipedia.org)
  • There he leads a life as a different man with an interesting background 'oriental' and fakes the facts of his life. (wikipedia.org)
  • These ideas of half-life applied to different fields differ from the concept of half-life in physics in that there is no guarantee that the knowledge or facts in areas of study are declining exponentially. (wikipedia.org)
  • example
  • For example: The current flowing through an RC circuit or RL circuit decays with a half-life of RCln(2) or ln(2)L/R, respectively. (wikipedia.org)
  • For this example, the term half time might be used instead of "half life", but they mean the same thing. (wikipedia.org)
  • For example, oxytocin has a half-life of typically about three minutes in the blood when given intravenously. (wikipedia.org)
  • For example, the civilians are re-skins of a scientist found in Half-Life. (wikipedia.org)
  • For example, one friendly NPC features the same sound clips as Barney Calhoun from Half-Life but has been edited to affect a deeper voice. (wikipedia.org)
  • Release
  • However, before finally wrapping up a 15-year obscure career, Half Life Half Death released an independently produced double-CD compilation of all recorded materials plus a few demos, entitled The Halven Trilogy, the third part of which the band intends to finish and release on their vocalist's return to the Philippines. (wikipedia.org)
  • The first public version of Sven Co-op was released on January 19, 1999, about 3 months after the release of Half-Life. (wikipedia.org)
  • Around 2004, prior to the release of Half-Life 2, Fearon had been planning to release Sven Co-op on Steam, but this did not work out due to confusion between the Sven Co-op team and Valve. (wikipedia.org)
  • Though they had developed a large number of assets for the mod, they were hampered by the lack of the SDK, which had been pushed back along with the release of Half-Life 2. (wikipedia.org)
  • years
  • the amount of light produced will drop to half its original value in 12.32 years, the half-life of tritium. (wikipedia.org)
  • Because scientific knowledge is growing by a factor of ten every 50 years, this means that half of what scientists may have known about a particular subject will be wrong or obsolete in 45 years. (wikipedia.org)
  • An engineering degree went from having a half life of 35 years in ca. 1930 to about 10 years in 1960. (wikipedia.org)
  • Donald Hebb estimated the half-life of psychology to be five years. (wikipedia.org)
  • Source
  • Further, Fearon and the team had started work on a Sven Co-op 2 in anticipation of using the Source engine from Half-Life 2. (wikipedia.org)
  • Portal
  • Since the Resonance Cascade at Black Mesa , Portal Storms have occurred all over the world bringing forth life forms from Xen . (combineoverwiki.net)
  • In Half-Life 2 , when at Black Mesa East , the player can see a newspaper cut-out, titled "Portal" Storm Continues . (combineoverwiki.net)
  • Its start, the very last Test Chamber from the original testing track in Portal , is connected to the Incinerator Room . (combineoverwiki.net)
  • series
  • Richard Keller is the first and only disabled person to be seen in the series (disregarding Eli Vance 's missing leg in Half-Life 2 , not really disabling him), along with the first female employees, Gina Cross and Colette Green. (combineoverwiki.net)
  • version
  • It is actually a damaged version of Test Chamber 06 of GLaDOS' original testing track renamed as Test Chamber 01, but with the Thermal Discouragement Beam replacing the Energy Pellet . (combineoverwiki.net)
  • Half Life Half Death's version of the song was a concert favorite among the underground-music crowd of the late 1980s. (wikipedia.org)
  • human
  • indicative not only of a very talented writer, but of a proper human being" by Nick Hornby Half a Life was widely excerpted in venues such as GQ, This American Life, United Kingdom papers The Times and Daily Mail. (wikipedia.org)
  • includes
  • In addition to the cooperative gameplay, Sven Co-op includes improvements from the original Half-Life, including improved artificial intelligence for both enemy and allied non-player characters. (wikipedia.org)
  • rocks
  • This achievement paved the way to the band's inclusion in four compilation albums: "Kapit-Tukô" for A Dozen Alternatives (1994, Viva Records), "Sa Paskong Darating" for Christmas on the Rocks (1994, Viva Records), "High School (Life)" for Mga Himig Natin Volume 2 (1994, Vicor Records), and "Nosi Ba Lasi? (wikipedia.org)
  • long
  • Half Life Half Death reformed and resumed activity in 2000 especially at Mayric's, a long-running club which served as a breeding ground for many important Filipino Rock bands which include Alamid, Sugar Hiccup, and The Youth. (wikipedia.org)
  • Half a Life was long listed for the Man Booker prize (2001). (wikipedia.org)
  • members
  • Late 2005 saw interesting musically related developments concerning Half Life Half Death key members Alfie Vera Mella, Rainald Paggao and Ramil Aznar, each of whom has embarked on a new musical project of his own. (wikipedia.org)
  • various
  • The song enjoyed heavy airplay on various FM radio stations, further helping Half Life Half Death gain some more following and land a record deal with Viva Records. (wikipedia.org)
  • note
  • Note that after one half-life there are not exactly one-half of the atoms remaining, only approximately, because of the random variation in the process. (wikipedia.org)
  • model
  • ASCII Entertainment (later Agetec) bought the SpaceOrb 360 design and technology license to manufacture the ASCII Sphere 360 model for the original Sony PlayStation. (wikipedia.org)