Sonic Thunder - W R Matson

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Résumé :
Since the earliest days of human existence, the clash of thunder and trembling of the hills has struck fear into the hearts of seasoned warriors and tribal villagers alike. Great gods, demi-gods, and heroes were created to explain the awesome, mysterious, and incomprehensibly powerful forces of Nature in a feeble attempt to make sense of the world around them. To our advanced scientific minds today, these explanations seem childish and ridiculous; however, the power to flatten thousands of square miles of ancient forest, create massive holes in the Earth itself, and cause mountains to tremble to their very roots are more than enough reason to believe. Indeed, perhaps our scientific advancement has caused us to not fully or completely appreciate the awesome scale and power that Nature can wield against us. The study of shock wave formation and dynamics begins with a study of waves themselves. Simple harmonic motion is used to analyze the physical mechanisms of wave generation and propagation, and the principle of superposition is used to mathematically generate constructive and destructive interference. Further development leads to the shock singularity where a single wave of immense magnitude propagates and decays through various media. Correlations with the fields of thermodynamics, meteorology, crater formation, and acoustics are made, as well as a few special applications. Direct correlation is made to events in Arizona, Siberia, and others. The mathematical requirement for this text includes trigonometry, differential equations, and large series summations, which should be accessible to most beginning and advanced university students. This text should serve well as supplementary material in a course covering discrete wave dynamics, applied thermodynamics, or extreme acoustics.

Biographie:
Dr. W. R. Matson received his doctoral degree in Condensed Matter from Oklahoma State University in 2004. Since that time he has been an Assistant Professor at Universities in Michigan, Chicago, Minnesota, and South Dakota. His post-doctoral fellowship at Emory University investigated the dynamics of destructive rheology and shock physics, during which he developed integrated experimental hardware and software which included the use of time-dependent second-order dynamic feedback control system for a remote three-dimensional experimental apparatus. He is also the author of Earthquakes: The Sound of Multi-modal Waves. His current research interest is complex flow dynamics in the vicinity of rigid boundaries and obstructive objects. His ultimate research goal is a fundamental theory of viscosity based on first principles quantum molecular electrodynamics, and the physics governing energy diffusion within arbitrary liquids. The consequences of this research could revolutionize the fields of medicine, industrial engineering, food processing, oceanography, climatology, meteorology, and many more.