A Derivation of Three-Dimensional Inertial Transformations

The derivation of the transformations between inertial frames made by Mansouri and Sexl is generalised to three dimensions for an arbitrary direction of the velocity. Assuming lenght contraction and time dilation to have their relativistic values, a set of transformations kinematically equivalent to special relativity is obtained. The ``clock hypothesis'' allows the derivation to be extended to accelerated systems. A theory of inertial transformations maintaining an absolute simultaneity is shown to be the only one logically consistent with accelerated movements. Algebraic properties of these transformations are discussed. Keywords: special relativity, synchronization, one-way velocity of light, ether, clock hypothesis.Comment: 16 pages (A5), Latex, one figure, to be published in Found. Phys. Lett. (1997

Treacherous Play

The ethics and experience of “treacherous play”: an exploration of three games that allow deception and betrayal—EVE Online, DayZ, and Survivor. Deception and betrayal in gameplay are generally considered off-limits, designed out of most multiplayer games. There are a few games, however, in which deception and betrayal are allowed, and even encouraged. In Treacherous Play, Marcus Carter explores the ethics and experience of playing such games, offering detailed explorations of three games in which this kind of “dark play” is both lawful and advantageous: EVE Online, DayZ, and the television series Survivor. Examining aspects of games that are often hidden, ignored, or designed away, Carter shows the appeal of playing treacherously. Carter looks at EVE Online's notorious scammers and spies, drawing on his own extensive studies of them, and describes how treacherous play makes EVE successful. Making a distinction between treacherous play and griefing or trolling, he examines the experiences of DayZ players to show how negative experiences can be positive in games, and a core part of their appeal. And he explains how in Survivor's tribal council votes, a player's acts of betrayal can exact a cost. Then, considering these games in terms of their design, he discusses how to design for treacherous play. Carter's account challenges the common assumptions that treacherous play is unethical, antisocial, and engaged in by bad people. He doesn't claim that more games should feature treachery, but that examining this kind of play sheds new light on what play can be

From Wormholes to the Warp Drive: Using theoretical physics to place ultimate bounds on technology

The serious study of such science fiction staples as wormholes, time travel, and the warp drive, as a means of understanding and constraining possible realistic solutions within General Relativity is reviewed.Comment: 10 pages LaTeX; to appear in Phi Kappa Phi Foru

Методичні вказівки до практичних занять з розвитку навичок читання та усного мовлення англійською мовою за спеціальністю "Нано- та мікротехнології"

Методичні вказівки складно з 9 автентичних тематичних текстів, споряджених міні-словником та низкою вправ, що дозволяють студентам розширити свій словарний запас, відпрацювати різні розмовні моделі, активізувати комунікативні навички. Окремий розділ «Supplementary Reading» містить 5 додаткових текстів, які студенти можуть використовувати для самостійного опрацювання, підготування доповідей тощ

To Play or Not to Play: Non/Participation in Eve Online

This dissertation addresses a gap in the academic study of digital games whereby investigations remain focused on current players and the experiences of former or non-players are rarely accounted for. Using EVE Online (EVE), a massively multiplayer online game (MMOG) known for its difficult learning curve and homogenous community as a case study, I conducted an investigation of who does/does not play this particular game and their stated reasons for playing or not. I argue that while EVE is positioned in the MMOG market as a sandbox style game where in-game activities are only limited by a players imagination, in reality only a very particular type of play (and player) is publically acknowledged by EVEs developer (CCP Games), the gaming enthusiast press, and academics investigations of this game, emphasizing just how little is known about who plays EVE beyond the stereotypical imagined player. Drawing on literature from leisure studies to articulate a framework for exploring barriers/constraints to gameplay and theoretically informed by feminist theories of technology, I conducted an Internet-based survey to capture the thoughts and experiences of current, former, and non-EVE players. A total of 981 participants completed the survey. In my analysis of open-ended responses, I found that current players described the game in a way that emphasized its exceptionality, relied heavily on jargon, and assumed their reader was already familiar with EVE, its player community, and its surrounding norms and conventions. Non-players who were familiar with the game described their perceptions of EVE being an unwelcoming community meant they had opted out of playing without ever downloading the trial. Former players fell into three groupings: ex-players who had permanently quit EVE, a group who want to play but felt forced to take a temporary break due to external constraints (e.g. exams at school or financial limitations), and a third group would consider returning if changes to their personal circumstances and/or the game happened in future. Ultimately this research complicates what it means to play or not play MMOG, opening up avenues for future research about how access and barriers to digital game play inevitably shift over time

Space Commercialization: The Need to Immediately Renegotiate Treaties Implicating International Environmental Law

Outer space is truly the final frontier for both scientific exploration and frontier-style commercialization. Given its extra-national nature, international treaties have formed the basis of space law, but these treaties predate any notion of the true potential for space commercialization. The private sector has relied on this regulation-free industry when developing its spacecraft, mission structure, and operating procedures, often to the detriment of Earth\u27s and its surrounding environment, with space debris, i.e. space junk or space trash, and greenhouse gas emissions being the primary externalities. This Comment provides a background on the commercial space industry and applicable law and treaties, the shortcomings of those bodies of law, and then proposes changes in order to proactively ensure that space commercialization does not increase at such a rate that ex post legislation and treaty ratification is rendered impossible by private sector interests

Bicycles Across the Galaxy: Attacking Automobility in 1950s Science Fiction

This essay focuses on several works of science fiction from the 1950s that function as counter-narratives to the hegemony of the automobile during this decade and to the accompanying dismissive perceptions of the bicycle. In its analysis of a novel by Robert A. Heinlein (The Rolling Stones, 1952), a novella by Poul Anderson (“A Bicycle Built for Brew,” 1958), and a short story by Avram Davidson (“Or All the Seas with Oysters,” 1958), it asserts that some of the leading figures in Golden Age sf were not content to relegate bicycles to the status of a technological obsolescence fit only for children. Instead, they chose to portray bicycles as useful, potent, and agentic—images that counter the prevailing ideology of “automobility” that was crystallizing with such durability in postwar America

The Completeness of Physics

The present work is focussed on the completeness of physics, or what is here called the Completeness Thesis: the claim that the domain of the physical is causally closed. Two major questions are tackled: How best is the Completeness Thesis to be formulated? What can be said in defence of the Completeness Thesis? My principal conclusions are that the Completeness Thesis can be coherently formulated, and that the evidence in favour if it significantly outweighs that against it. In opposition to those who argue that formulation is impossible because no account of what is to count as physical can be provided, I argue that as long as the purpose of the argument in which the account is to be used are borne in mind there are no significant difficulties. The account of the physical which I develop holds as physical whatever is needed to fix the likelihood of pre-theoretically given physical effects, and hypothesises in addition that no chemical, biological or psychological factors will be needed in this way. The thus formulated Completeness Thesis is coherent, and has significant empirical content. In opposition to those who defend the doctrine of emergentism by means of philosophical arguments I contend that those arguments are flawed, setting up misleading dichotomies between needlessly attenuated alternatives and assuming the truth of what is to be proved. Against those who defend emergentism by appeal to the evidence, I argue that the history of science since the nineteenth century shows clearly that the empirical credentials of the view that the world is causally closed at the level of a small number of purely physical forces and types of energy is stronger than ever, and the credentials of emergentism correspondingly weaker. In opposition to those who argue that difficulties with reductionism point to the implausibility of the Completeness Thesis I argue that completeness in no way entails the kinds of reductionism which give rise to the difficulties in question. I argue further that the truth of the Completeness Thesis is in fact compatible with a great deal of taxonomic disorder and the impossibility of any general reduction of non-fundamental descriptions to fundamental ones. In opposition to those who argue that the epistemological credentials of fundamental physical laws are poor, and that those laws should in fact be seen as false, I contend that truth preserving accounts of fundamental laws can be developed. Developing such an account, I test it by considering cases of the composition of forces and causes, where what takes place is different to what is predicted by reference to any single law, and argue that viewing laws as tendencies allows their truth to be preserved, and sense to be made of both the experimental discovery of laws, and the fact that composition enables accurate prediction in at least some cases