For the Love of Physics

For the Love of Physics
Author: Walter Lewin
Publisher: Simon and Schuster
Total Pages: 375
Release: 2011-05-03
Genre: Science
ISBN: 1439123543

“YOU HAVE CHANGED MY LIFE” is a common refrain in the emails Walter Lewin receives daily from fans who have been enthralled by his world-famous video lectures about the wonders of physics. “I walk with a new spring in my step and I look at life through physics-colored eyes,” wrote one such fan. When Lewin’s lectures were made available online, he became an instant YouTube celebrity, and The New York Times declared, “Walter Lewin delivers his lectures with the panache of Julia Child bringing French cooking to amateurs and the zany theatricality of YouTube’s greatest hits.” For more than thirty years as a beloved professor at the Massachusetts Institute of Technology, Lewin honed his singular craft of making physics not only accessible but truly fun, whether putting his head in the path of a wrecking ball, supercharging himself with three hundred thousand volts of electricity, or demonstrating why the sky is blue and why clouds are white. Now, as Carl Sagan did for astronomy and Brian Green did for cosmology, Lewin takes readers on a marvelous journey in For the Love of Physics, opening our eyes as never before to the amazing beauty and power with which physics can reveal the hidden workings of the world all around us. “I introduce people to their own world,” writes Lewin, “the world they live in and are familiar with but don’t approach like a physicist—yet.” Could it be true that we are shorter standing up than lying down? Why can we snorkel no deeper than about one foot below the surface? Why are the colors of a rainbow always in the same order, and would it be possible to put our hand out and touch one? Whether introducing why the air smells so fresh after a lightning storm, why we briefly lose (and gain) weight when we ride in an elevator, or what the big bang would have sounded like had anyone existed to hear it, Lewin never ceases to surprise and delight with the extraordinary ability of physics to answer even the most elusive questions. Recounting his own exciting discoveries as a pioneer in the field of X-ray astronomy—arriving at MIT right at the start of an astonishing revolution in astronomy—he also brings to life the power of physics to reach into the vastness of space and unveil exotic uncharted territories, from the marvels of a supernova explosion in the Large Magellanic Cloud to the unseeable depths of black holes. “For me,” Lewin writes, “physics is a way of seeing—the spectacular and the mundane, the immense and the minute—as a beautiful, thrillingly interwoven whole.” His wonderfully inventive and vivid ways of introducing us to the revelations of physics impart to us a new appreciation of the remarkable beauty and intricate harmonies of the forces that govern our lives.

Elements of Causal Inference

Elements of Causal Inference
Author: Jonas Peters
Publisher: MIT Press
Total Pages: 289
Release: 2017-11-29
Genre: Computers
ISBN: 0262037319

A concise and self-contained introduction to causal inference, increasingly important in data science and machine learning. The mathematization of causality is a relatively recent development, and has become increasingly important in data science and machine learning. This book offers a self-contained and concise introduction to causal models and how to learn them from data. After explaining the need for causal models and discussing some of the principles underlying causal inference, the book teaches readers how to use causal models: how to compute intervention distributions, how to infer causal models from observational and interventional data, and how causal ideas could be exploited for classical machine learning problems. All of these topics are discussed first in terms of two variables and then in the more general multivariate case. The bivariate case turns out to be a particularly hard problem for causal learning because there are no conditional independences as used by classical methods for solving multivariate cases. The authors consider analyzing statistical asymmetries between cause and effect to be highly instructive, and they report on their decade of intensive research into this problem. The book is accessible to readers with a background in machine learning or statistics, and can be used in graduate courses or as a reference for researchers. The text includes code snippets that can be copied and pasted, exercises, and an appendix with a summary of the most important technical concepts.

The Butterfly Effect

The Butterfly Effect
Author: Edward D. Melillo
Publisher: Knopf
Total Pages: 272
Release: 2020-08-25
Genre: Science
ISBN: 1524733229

A fascinating, entertaining dive into the long-standing relationship between humans and insects, revealing the surprising ways we depend on these tiny, six-legged creatures. Insects might make us shudder in disgust, but they are also responsible for many of the things we take for granted in our daily lives. When we bite into a shiny apple, listen to the resonant notes of a violin, get dressed, receive a dental implant, or get a manicure, we are the beneficiaries of a vast army of insects. Try as we might to replicate their raw material (silk, shellac, and cochineal, for instance), our artificial substitutes have proven subpar at best, and at worst toxic, ensuring our interdependence with the insect world for the foreseeable future. Drawing on research in laboratory science, agriculture, fashion, and international cuisine, Edward D. Melillo weaves a vibrant world history that illustrates the inextricable and fascinating bonds between humans and insects. Across time, we have not only coexisted with these creatures but have relied on them for, among other things, the key discoveries of modern medical science and the future of the world's food supply. Without insects, entire sectors of global industry would grind to a halt and essential features of modern life would disappear. Here is a beguiling appreciation of the ways in which these creatures have altered--and continue to shape--the very framework of our existence.

White Fragility

White Fragility
Author: Dr. Robin DiAngelo
Publisher: Beacon Press
Total Pages: 194
Release: 2018-06-26
Genre: Social Science
ISBN: 0807047422

The New York Times best-selling book exploring the counterproductive reactions white people have when their assumptions about race are challenged, and how these reactions maintain racial inequality. In this “vital, necessary, and beautiful book” (Michael Eric Dyson), antiracist educator Robin DiAngelo deftly illuminates the phenomenon of white fragility and “allows us to understand racism as a practice not restricted to ‘bad people’ (Claudia Rankine). Referring to the defensive moves that white people make when challenged racially, white fragility is characterized by emotions such as anger, fear, and guilt, and by behaviors including argumentation and silence. These behaviors, in turn, function to reinstate white racial equilibrium and prevent any meaningful cross-racial dialogue. In this in-depth exploration, DiAngelo examines how white fragility develops, how it protects racial inequality, and what we can do to engage more constructively.

Reference and Existence

Reference and Existence
Author: Saul A. Kripke
Publisher: Oxford University Press
Total Pages: 185
Release: 2018
Genre: Mathematics
ISBN: 0190660619

This work can be read as a sequel to Kripke's classic Naming and Necessity, confronting important issues left open in that work and developing a novel approach to questions concerning empty names and existence. It provides along the way novel treatments of fictional and mythological discourse, the pragmatics of definite and indefinite descriptions and the language of sense data.

Political Economy for Public Policy

Political Economy for Public Policy
Author: Ethan Bueno de Mesquita
Publisher: Princeton University Press
Total Pages: 426
Release: 2016-09-06
Genre: Political Science
ISBN: 0691168741

The ideal introductory textbook to the politics of the policymaking process This textbook uses modern political economy to introduce students of political science, government, economics, and public policy to the politics of the policymaking process. The book's distinct political economy approach has two virtues. By developing general principles for thinking about policymaking, it can be applied across a range of issue areas. It also unifies the policy curriculum, offering coherence to standard methods for teaching economics and statistics, and drawing connections between fields. The book begins by exploring the normative foundations of policymaking—political theory, social choice theory, and the Paretian and utilitarian underpinnings of policy analysis. It then introduces game theoretic models of social dilemmas—externalities, coordination problems, and commitment problems—that create opportunities for policy to improve social welfare. Finally, it shows how the political process creates technological and incentive constraints on government that shape policy outcomes. Throughout, concepts and models are illustrated and reinforced with discussions of empirical evidence and case studies. This textbook is essential for all students of public policy and for anyone interested in the most current methods influencing policymaking today. Comprehensive approach to politics and policy suitable for advanced undergraduates and graduate students Models unify policy curriculum through methodological coherence Exercises at the end of every chapter Self-contained appendices cover necessary game theory Extensive discussion of cases and applications

Ten Lectures on Wavelets

Ten Lectures on Wavelets
Author: Ingrid Daubechies
Publisher: SIAM
Total Pages: 357
Release: 1992-01-01
Genre: Science
ISBN: 9781611970104

Wavelets are a mathematical development that may revolutionize the world of information storage and retrieval according to many experts. They are a fairly simple mathematical tool now being applied to the compression of data--such as fingerprints, weather satellite photographs, and medical x-rays--that were previously thought to be impossible to condense without losing crucial details. This monograph contains 10 lectures presented by Dr. Daubechies as the principal speaker at the 1990 CBMS-NSF Conference on Wavelets and Applications. The author has worked on several aspects of the wavelet transform and has developed a collection of wavelets that are remarkably efficient.

The Digital Divide

The Digital Divide
Author: Jan van Dijk
Publisher: John Wiley & Sons
Total Pages: 164
Release: 2020-01-14
Genre: Social Science
ISBN: 1509534466

Contrary to optimistic visions of a free internet for all, the problem of the ‘digital divide’ – the disparity between those with access to internet technology and those without – has persisted for close to twenty-five years. In this textbook, Jan van Dijk considers the state of digital inequality and what we can do to tackle it. Through an accessible framework based on empirical research, he explores the motivations and challenges of seeking access and the development of requisite digital skills. He addresses key questions such as: Does digital inequality reduce or reinforce existing, traditional inequalities? Does it create new, previously unknown social inequalities? While digital inequality affects all aspects of society and the problem is here to stay, Van Dijk outlines policies we can put in place to mitigate it. The Digital Divide is required reading for students and scholars of media, communication, sociology, and related disciplines, as well as for policymakers.

Information and Influence Propagation in Social Networks

Information and Influence Propagation in Social Networks
Author: Wei Chen
Publisher: Springer Nature
Total Pages: 161
Release: 2022-05-31
Genre: Computers
ISBN: 3031018508

Research on social networks has exploded over the last decade. To a large extent, this has been fueled by the spectacular growth of social media and online social networking sites, which continue growing at a very fast pace, as well as by the increasing availability of very large social network datasets for purposes of research. A rich body of this research has been devoted to the analysis of the propagation of information, influence, innovations, infections, practices and customs through networks. Can we build models to explain the way these propagations occur? How can we validate our models against any available real datasets consisting of a social network and propagation traces that occurred in the past? These are just some questions studied by researchers in this area. Information propagation models find applications in viral marketing, outbreak detection, finding key blog posts to read in order to catch important stories, finding leaders or trendsetters, information feed ranking, etc. A number of algorithmic problems arising in these applications have been abstracted and studied extensively by researchers under the garb of influence maximization. This book starts with a detailed description of well-established diffusion models, including the independent cascade model and the linear threshold model, that have been successful at explaining propagation phenomena. We describe their properties as well as numerous extensions to them, introducing aspects such as competition, budget, and time-criticality, among many others. We delve deep into the key problem of influence maximization, which selects key individuals to activate in order to influence a large fraction of a network. Influence maximization in classic diffusion models including both the independent cascade and the linear threshold models is computationally intractable, more precisely #P-hard, and we describe several approximation algorithms and scalable heuristics that have been proposed in the literature. Finally, we also deal with key issues that need to be tackled in order to turn this research into practice, such as learning the strength with which individuals in a network influence each other, as well as the practical aspects of this research including the availability of datasets and software tools for facilitating research. We conclude with a discussion of various research problems that remain open, both from a technical perspective and from the viewpoint of transferring the results of research into industry strength applications.