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The Physics of Ultra-High-Density Magnetic Recording
Application-oriented book on magnetic recording, focussing on the underlying physical mechanisms that play crucial roles in medium and transducer development for high areal density disk drives.
Perpendicular Magnetic Recording
Magnetic recording is expected to become core technology in a multi-billion dollar industry in the in the very near future. Some of the most critical discoveries regarding perpendicular write and playback heads and perpendicular media were made only during the last several years as a result of extensive and intensive research in both academia and industry in their fierce race to extend the superparamagnetic limit in the magnetic recording media. These discoveries appear to be critical for implementing perpendicular magnetic recording into an actual disk drive. This book addresses all the open questions and issues which need to be resolved before perpendicular recording can finally be implemented successfully, and is the first monograph in many years to address this subject. This book is intended for graduate students, young engineers and even senior and more experienced researchers in this field who need to acquire adequate knowledge of the physics of perpendicular magnetic recording in order to further develop the field of perpendicular recording.
Tracing your Ancestors using the UK Historical Timeline
A practical handbook for family historians looking to verify dates and add historical context to their British ancestry. Ancestral research can often lead to a foggy realm of the distant past where dates and details become muddled. For those interested in shedding light on their British family lineage, this volume offers a wealth of genealogical resources. Here you will discover what records are available and how far back they go. It also presents a handy timeline to historical events from 1066 to the present. Created with the family historian in mind, each page presents historical facts of genealogical relevance alongside significant socio-cultural events. The timeline focuses on subjects such as migration, extreme weather, epidemics, famine, taxation, transport, the armed services, organized labor, political unrest, and scientific advances. Entries cover all four countries of the UK plus Ireland and the Channel Islands, as well as significant historical events in the wider world. Genealogically, it includes information on changes to BMD certificates and the associated register entries, as well as to censuses and the facts they collected, plus much more.
Theory of Magnetic Recording
This book is a comprehensive text on the theory of the magnetic recording process.
Bulletin
Including National architect.
David Heatwole and His Descendants
Johann Mathias Hütwohl (1711-1776) was born in Steeg, Germany, the son of John Georg Hütwohl. In 1744 he married Anna Christina and in 1748 they, along with two daughters, sailed for America. Anna Christina and the daughters died at sea. Johann arrived in Philadelphia and settled in the Conestoga valley. In 1765 he married a Miss Haas, and they became the parents of six children. Descendants and relatives lived in Pennsylvania, Virginia, Florida, and elsewhere in the United States, and throughout Canada.
