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“A great read… Goldberg is an excellent guide.”—Mario Livio, bestselling author of The Golden Ratio Physicist Dave Goldberg speeds across space, time and everything in between showing that our elegant universe—from the Higgs boson to antimatter to the most massive group of galaxies—is shaped by hidden symmetries that have driven all our recent discoveries about the universe and all the ones to come. Why is the sky dark at night? If there is anti-matter, can there be anti-people? Why are past, present, and future our only options? Saluting the brilliant but unsung female mathematician Emmy Noether as well as other giants of physics, Goldberg answers these questions and more, exuberantly demonstrating that symmetry is the big idea—and the key to what lies ahead.
Quantum effects in macroscopic systems have long been a fascination for researchers. Over the past decade mechanical oscillators have emerged as a leading system of choice for many such experiments. The work reported in this thesis investigates the effects of the radiation-pressure force of light on macroscopic mechanical structures. The basic system studied is a mechanical oscillator that is highly reflective and part of an optical resonator. It interacts with the optical cavity mode via the radiation-pressure force. Both the dynamics of the mechanical oscillation and the properties of the light field are modified through this interaction. The experiments use quantum optical tools (such as homodyning and down-conversion) with the goal of ultimately showing quantum behavior of the mechanical center of mass motion. Of particular value are the detailed descriptions of several novel experiments that pave the way towards this goal and are already shaping the field of quantum optomechanics, in particular optomechanical laser cooling and strong optomechanical coupling.
Micromachined Mirrors provides an overview of the performance enhancements that will be realized by miniaturizing scanning mirrors like those used for laser printers and barcode scanners, and the newly enabled applications, including raster-scanning projection video displays and compact, high-speed fiber-optic components. There are a wide variety of methods used to fabricate micromachined mirrors - each with its advantages and disadvantages. There are, however, performance criteria common to mirrors made from any of these fabrication processes. For example, optical resolution is related to the mirror aperture, the mirror flatness, and the scan angle. Micromachined Mirrors provides a framework for the design of micromirrors, and derives equations showing the fundamental limits for micromirror performance. These limits provide the micromirror designer tools with which to determine the acceptable mirror geometries, and to quickly and easily determine the range of possible mirror optical resolution and scan speed.
Inspired by a father in naval aviation, living on air bases right next to their runways around the US and throughout the Pacific definitely played a big part in his dream to be a pilot. That dream would be slowed only shortly by the Vietnam conflict. However, the four years he would spend in the US Navy would prove invaluable to him in his future flying plans. With the help of a very special person in his life, hard work and determination, he would realize his dream. This book tells of some of the adventures in his life. From the Jungles of Asia to the Galapagos islands, not just as a TV news, police, fire fighting and tuna boat pilot, but his amazing interactions with wildlife every where he went and much, much more!
Since its publication in 1984, Chants Democratic has endured as a classic narrative on labor and the rise of American democracy. In it, Sean Wilentz explores the dramatic social and intellectual changes that accompanied early industrialization in New York. He provides a panoramic chronicle of New York City's labor strife, social movements, and political turmoil in the eras of Thomas Jefferson and Andrew Jackson. Twenty years after its initial publication, Wilentz has added a new preface that takes stock of his own thinking, then and now, about New York City and the rise of the American working class.