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Half-Life is a 1998 first-person shooter game developed by Valve Corporation and published by Sierra Studios for Windows. It was Valve's debut product and the first game in the Half-Life series. The player assumes the role of Gordon Freeman, a scientist who must escape from the Black Mesa Research Facility after it is overrun by alien creatures ...
AU: December 20, 2007. Genre (s) Various. Mode (s) Single player, multiplayer. The Orange Box is a video game compilation containing five games developed and published by Valve. Two of the games included, Half-Life 2 and its first stand-alone expansion, Episode One; had previously been released as separate products.
Half-Life is a series of first-person shooter (FPS) games created by Valve. The games combine shooting combat, puzzles and storytelling. The original Half-Life, Valve's first product, was released in 1998 for Windows to critical and commercial success. Players control Gordon Freeman, a scientist who must survive an alien invasion.
Half-Life: Opposing Force is an expansion pack for the first-person shooter game Half-Life. It was developed by Gearbox Software and published by Sierra On-Line for Windows on November 19, 1999. Opposing Force was the first expansion for Half-Life and was announced in April 1999. Lead designer Randy Pitchford noted that he believed Gearbox was ...
Counter-Strike (also known as Half-Life: Counter-Strike or Counter-Strike 1.6) [5] is a tactical first-person shooter game developed by Valve.It was initially developed and released as a Half-Life modification by Minh "Gooseman" Le and Jess Cliffe in 1999, before Le and Cliffe were hired and the game's intellectual property acquired.
Transport Layer Security ( TLS) is a cryptographic protocol designed to provide communications security over a computer network. The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its use in securing HTTPS remains the most publicly visible. The TLS protocol aims primarily to provide security ...
242 Pu's half-life is about 15 times as long as 239 Pu's half-life; therefore, it is 1/15 as radioactive and not one of the larger contributors to nuclear waste radioactivity. 242 Pu's gamma ray emissions are also weaker than those of the other isotopes. [14] 243 Pu has a half-life of only 5 hours, beta decaying to americium-243.
These have half-lives of less than thirty minutes, except 101 Pd (half-life: 8.47 hours), 109 Pd (half-life: 13.7 hours), and 112 Pd (half-life: 21 hours). [11] For isotopes with atomic mass unit values less than that of the most abundant stable isotope, 106 Pd, the primary decay mode is electron capture with the primary decay product being ...