Exploring Top Books of Shelfari

The Calendar: The 5000 Year Struggle to Align the Clock and the Heavens and What Happened to the Missing Ten Days

The Calendar: The 5000 Year Struggle to Align the Clock and the Heavens and What Happened to the Missing Ten Days

by David Ewing Duncan

The adventure spans the world from Stonehenge to astronomically aligned pyramids at Giza, from Mayan observatories at Chichen Itza to the atomic clock in Washington, the world's official timekeeper since the 1960s. We visit cultures from Vedic India and Cleopatra's Egypt to Byzantium and the Elizabethan court; and meet an impressive cast of historic personages from Julius Caesar to Omar Khayyam, and giants of... (more)

Longitude

The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of his Time

by Dava Sobel

On its 10th anniversary, a gift edition of this classic book, with a forward by one of history's greatest explorers, and eight pages of color illustrations. Anyone alive in the eighteeth century would have known that "the logitude problem" was the thorniest scientific dilemma of the day--and had been for centuries. Lacking the ability to measure their longitude, sailors throughout the great ages of... (more)

The Dance of Time: The Origins of the Calendar: A Miscellany of History and Myth, Religion and Astronomy, Festivals and Feast Days

The Dance of Time: The Origins of the Calendar: A Miscellany of History and Myth, Religion and Astronomy, Festivals and Feast Days

by Michael Judge

Phenomenon Book of CalendarsDragon's world a.g.

Phenomenon Book of Calendars

by Dragon's world a.g.

Decoding the Heavens: A 2,000-Year-Old Computer--and the Century-Long Search to Discover Its Secrets

Decoding the Heavens: A 2,000-Year-Old Computer--and the Century-Long Search to Discover Its Secrets

by Jo Marchant

The bronze fragments of an ancient Greek device have puzzled scholars for more than a century after they were recovered from the bottom of the Mediterranean Sea, where they had lain since about 80 BC. Now, using advanced imaging technology, scientists have solved the mystery of its intricate workings. Unmatched in complexity for a thousand years, the mechanism functioned as the world’s first analog computer,... (more)

Headache

A Guide for the Primary Care Physician

by Elizabeth W. Loder, MD, Vincent T. Martin, MD

The emphasis of this book falls naturally on the Big Three headache disorders: migraine, tension-type, and cluster headaches. Other topics include medication overuse and misuse, complementary and alternative treatments, headache in special populations such as children and adolescents, and the difficult headache patient. Special features include the headache calendars and diaries, headache impact test, and the... (more)

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