Chapter 3 examines mythical, historical, and scientific facts. It offers a brief history of East Asian international relations, paying particular attention to the Chinese World Order, the Khmer Empire, and post-colonial Filipino historiography as samples for how to theorize histories from an IR perspective. The chapter discusses war and peace as well as political economy, the subject matters important for East Asian history and IR theory. It also offers a section on impacts and lessons of history, illustrating how history contributes to background knowledge, historiography and belief systems, foreign policy analysis, and IR theory. A better understanding of East Asian history allows us to contextualize contemporary issues without which we may not be able to put together a puzzle. Historical experiences inform our belief system, into which people typically fit new events or factors as explanation. History is evolutionary by nature, whether we frame it that way explicitly or not.

This chapter summarises the key aerodynamic theory of horizontal-axis wind turbine rotors. The actuator disc concept leads to the relationships between induced velocity, axial thrust, and power extraction. The theory is extended to multiple streamtubes, which combined with 2D wing theory establish the basis of blade element momentum (BEM) theory. A straightforward mathematical treatment of BEM theory is included, with an iterative procedure suitable for coding. Measurements from a full-scale rotor illustrate the applicability of BEM theory but also its fundamental limitations: the latter are described, and measures outlined to compensate for them in practical BEM codes. Simple relationships are given for the axial and tangential load distributions on an optimal HAWT blade. The structure of the rotor wake is described, leading into a description of vortex-wake theory, which provides a more physically realistic description of the airflow. Vortex wake codes are described in non-mathematical terms. The chapter includes wake measurements from full-scale wind turbines and small models. Vorticity maps from the latter verify the underlying mathematical model of a helical vortex wake.

Chapter 4 extends the aerodynamic discussions of Chapter 3 to show how the rotor net loads (power, thrust, and torque) are developed. The dimensionless power coefficient (Cp) curve is introduced, and the relationship between rotor tip speed ratio and optimum solidity is explained. The variation of thrust loading with wind speed on an ideal pitch-controlled rotor is explained from simple theory, and illustrated with measurements from a full-scale turbine. Equations governing the chord and twist distributions for an optimised blade are given and discussed in the context of some historic blade types, with illustrations. Rotor aerodynamic control is explained with reference to fixed-pitch stall regulation and variable blade pitch (both positive and negative). The influence of blade number is examined, with discussion of the advantages and disadvantages of one-, two-, and three-bladed wind turbines. The method by which annual energy capture is derived from the power curve and wind speed distribution is explained, with example. The chapter concludes with a brief overview of alternative aerodynamic control devices including tip vanes and ailerons, and downwind rotors (with examples).

Chapter 5 deals with electrical issues and is broadly divided in two. The first half explains the operating principles of the several different types of generator found on wind turbines, and their influence on dynamics and electrical power quality. Generator types are illustrated schematically and their characteristics explained using simple physical principles. Geared and gearless (direct drive) generators are discussed and there is a brief historical review of generator developments. The second half of the chapter deals with electrical networks and further examines the issue of power quality. The importance of reactive power is explained and how modern generators can manipulate it to aid voltage stability; the role of external devices such as Statcoms, SVCs, and pre-insertion resistors is also discussed in this context. Measurements from a MW-scale wind turbine illustrate voltage control via reactive power management over a period of several days. The challenge of low grid strength is illustrated with a practical example of a small wind farm development on a rural network with low fault level. The chapter concludes with a brief discussion of wind turbine lightning protection.

Chapter 5 analyzes the evolving security structures in East Asia since the end of World War II. What counts as security for the countries in the region and beyond, and the policy choices made accordingly, have made East Asian security the way it is today. Evolution shapes every component of international security, specifically the nation, the nature of politics, and epistemology. Conventional security theories such as the security dilemma and alliance apply to East Asia partly because Western practice and theory have become parts of East Asian practice and theoretical thinking. At the same time, East Asia had a much longer history, and was not a blank canvas for outside influence. The mixture of the old and new explains why East Asian security concepts and practices seem partly familiar and partly strange, which is characteristic of East Asian international relations.

Chapter 6 studies East Asian economic growth and development strategy. It starts with a section on how economic growth and the theory of growth have been constructed. It then discusses the East Asian economic miracle – rapid growth in GDP per capita with relative equity. Most East Asian countries have chosen a hybrid path, often emulating each other and building on recent successes. Most adopted the developmental-state strategy to different degrees and at different points, and they generally view modernization as a way to regain their past glories. This chapter focuses on material wealth production, with a particular emphasis on how East Asian nations adapt and innovate. It also discusses the consequences of East Asian growth in terms of the rise and fall of nations, the “rich nation, strong army”, the contest of political systems, and the environment. Uneven economic growth is a source of a shifting balance of power.

Chapter 2 provides the theoretical and methodological foundations for understanding East Asian international relations and demonstrates how facts and theories are constructed. Building on that foundation, the chapter then provides a preliminary review of the merits and demerits of the prevailing theories: realism, liberal institutionalism, constructivism, Marxism, and neo-traditionalism, depending on the research questions we are interested in. The chapter also offers an initial connection between the existing IR theories and theory of evolution. It emphasizes that the theory of evolution does not necessarily replace any existing IR theory but offers instead a different insight and scientific framework, which may be left in the background or be explicitly applied.