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Streamlines, contour lines, vector plots, and volume slices (cutting planes) are commonly used for flow visualization. These techniques are sometimes referred to as instantaneous flow visualization techniques because calculations are based on an instant of the flowfield in time. Although instantaneous flow visualization techniques are effective for depicting phenomena in steady flows,they sometimes do not adequately depict time-varying phenomena in unsteady flows. Streaklines and timelines are effective visualization techniques for depicting vortex shedding, vortex breakdown, and shock waves in unsteady flows. These techniques are examples of time-dependent flow visualization techniques, which are based on many instants of the flowfields in time. This paper describes the algorithms for computing streaklines and timelines. Using numerically simulated unsteady flows, streaklines and timelines are compared with streamlines, contour lines, and vector plots. It is shown that streaklines and timelines reveal vortex shedding and vortex breakdown more clearly than instantaneous flow visualization techniques.

Rose Wilder Lane was a newspaper reporter, free-lance writer, political activist, and the daughter of Laura Ingalls Wilder, author of the "Little House" series of popular children's books. In this biography of Henry Ford, Ms. Lane worked directly with Ford to tell his story from his birth to his founding of the Ford Motor Company and his use of modern assembly lines to mass produce his cars. (Summary by Lee Ann Howlett.)

2Mizora: A Prophecy.

By Mary E Bradley Lane

After being exiled from her home and family, Vera Zarovich finds herself in Mizora, a civilization at the center of the Earth made up entirely of women. This text recounts her experiences there and what she learns during in time in this "utopian" civilization. - Summary by casmith512

3Peaks of Shala

By Rose Wilder Lane

This book was published in 1923. From the author's own Introduction: "I would not have this book considered too seriously. It is not an attempt to untangle one thread in the Balkan snarl; it is not a study of primitive peoples; it is not a contribution to the world’s knowledge, and I hope no one will read it to improve the mind. It should be read as the adventures in it were lived, with a gayly inquiring mind, a taste for strange peoples and unknown trails, and a delight in the unexpected. Here I give you only what I saw, felt, and most casually learned while adventuring among the tribes in the interior northern Albanian mountains..." <br><br> Three brave American Zonyas (women) venture into the mountains of Northern Albania at a time not long after the Great War, when the boundaries (and even the right to exist) of the Balkan states were still hotly disputed. The author tells us why: "the people are living as they lived twenty centuries ago, before the Greek or the Roman or the Slav was ever known. There are prehistoric cities up there, old legends, songs, customs that no one knows anything about. No stranger’s ever even seen them." <br><br> What better reason to risk life, health, and limb? <br><br> (Summary by Steven Seitel)