Edmond Halley


Book Description

Edmond Halley (1656-1742), MA, LLD, FRS, Capt. RN, Savillian Professor of Geometry and Astronomer Royal, stands pre-eminent among Oxford, English, and European scientists. A contemporary of Wren, Pepys, Hooke, Handel, Purcell, and Dryden, he was a schoolboy in London while the Great Fireraged, and was an active participant in the Enlightenment, an age of profound developments in all the arts and sciences. As a younger contemporary of Isaac Newton, he had a crucial part in the Newtonian revolution in the natural sciences. It was Halley who set the question that led Newton to writethe Principia, and who edited, paid for, and reviewed it. In later years he applied the methods of the Principia widely in astronomy and geophysics. Now more widely known for his prediction of the return of "his" comet, Halley discovered the proper motion of stars, made important studies of themoon's motion, and his investigations of the Earth's magnetic field and of tides were unrialled for centuries. His prediction of the transit of Venus led to Cook's voyage to Tahiti. He was far more than an cloistered academic; his exploits as a naval captain led to perilous adventures, and he wasalso a notable servant of the State. Much material about his eventful career has come to light in recent years, making this a timely new account of the life, scientific interests, and continuing influence of this engaging and adventurous scholar. Sir Alan Cook has written a fascinating andilluminating account of Halley's life and science, making this a unique and highly readable biography of one of the key figures of his time.




The Lady Upstairs


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"A racy and hard-to-put-down piece of neo-noir."--Washington Post A modern-day noir featuring a twisty cat-and-mouse chase, this dark debut thriller tells the story of a woman who makes a living taking down terrible men...then finds herself in over her head and with blood on her hands. The only way out? Pull off one final con. Jo's job is blackmailing the most lecherous men in Los Angeles--handsy Hollywood producers, adulterous actors, corrupt cops. Sure, she likes the money she's making, which comes in handy for the debt she is paying off, but it's also a chance to take back power for the women of the city. Eager to prove herself to her coworker Lou and their enigmatic boss, known only as the Lady Upstairs, Jo takes on bigger and riskier jobs. When one of her targets is murdered, both the Lady Upstairs and the LAPD have Jo in their sights. Desperate to escape the consequences of her failed job, she decides to take on just one more sting--bringing down a rising political star. It's her biggest con yet--and she will do it behind the Lady's back, freeing both herself and Lou. But Jo soon learns that Lou and the Lady have secrets of their own, and that no woman is safe when there is a life-changing payout on the line. A delicious debut thriller crackling with wit and an unforgettable feminist voice, The Lady Upstairs is a chilling and endlessly surprising take on female revenge.




Halley's Comet


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Halley's Quest


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For most people, Edmond Halley is best known for accurately predicting the periodic appearance of the comet that ultimately would bear his name. But his greatest achievement may have been overlookedâ€" indeed few people know that it was Halley who solved the riddle of accurate navigation for all sea-going vessels. As seventeenth-century scientists gradually came to believe that the inside of the Earth was magnetized they were puzzled by the fact magnetic north not only varied slightly from place to place, but gradually changed over time, suggesting a slow variation of the Earth's magnetic field. But if the Earth was permanently magnetized, how could its magnetism vary? Edmond Halley, Britain's Astronomer Royal, ingeniously proposed that the Earth contained a number of spherical shells, one inside the other, each magnetized differently, each slowly rotating in relation to the others. This brilliant deduction earned Halley the command of a small sailing ship, the 52-foot Paramore, and with it, a royal mandate. Halley was to sail forth "to stand so far into the South, till you discover the Coast of the Terra Incognita." But more importantly, determine the variation between true and magnetic north in order to more accurately calculate longitudeâ€"a feat that would improve Britain's navigational skills and ensure its dominance of the high seas. Halley's Quest takes readers on a trilogy of sea voyages, each of which proved to be as novel and revealing as it was difficult and controversial. But more than a yarn of risk and adventure, the story at the core of the book is a deeply personal and intellectual tale that captures the science and the spirit of an almost forgotten episode in the history of navigation. Once branded a heretic by the Church and denied a prestigious scholarly chair at Oxford University, Halley ultimately changed the course of science, producing charts that described more accurate ways to navigate and documenting new geophysical phenomena ranging from ocean patterns to the motion of Jupiter's moons. This delightful book emphasizes the drama of Halley's mission and the passion of an era hungry for the stories science had to tell.




Exploration of Halley’s Comet


Book Description

The 1985/86 apparition of Halley's Comet turned out to be the most important apparition of a comet ever. It provided a worldwide science community with a wealth of exciting new discoveries, the most remarkable of which was undoubtedly the first image of a cometary nucleus. Halley's Comet is the brightest periodic comet, and the most famous of the 750 known comets. With its 76-year period, its recent appearance was truly a "once-in-a-lifetime" observational opportunity. The 1985/86 apparition was the thirtieth consecutive recorded apparition. Five apparitions ago, the English astronomer Edmond Halley discovered the periodicity of "his" comet and correctly predicted its return in 1758, a triumph for science best appreciated in the context of contemporary views, or rather fears, about comets at that time. The increasingly rapid progress in technological development is very much apparent when one compares the dominant tools for cometary research during Halley's next three apparitions: in 1835 studies were made based on drawings ofthe comet; in 1910 photographic plates were used; while in March 1986 an armada of six spacecraft from four space agencies approached the comet and carried out in situ measurements, 1 AU from the Earth. In 1910, nobody could have dreamed that this was possible, and today it is equally difficult to anticipate what scientists will be able to achieve in 2061.




Halley's Comet


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Bound for New Orleans! John Halley’s Journal of Flatboat Trips from Boonesborough in 1789 & 1791


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John Halley's journals provide the earliest first-hand accounts of the voyage down the Kentucky, Ohio and Mississippi rivers to New Orleans. Halley supplies insightful accounts of what became one of Kentucky's major early industries-shipping goods and produce by flatboat to the port of New Orleans-and he does so almost at the birth of that industry, just two years after Gen. James Wilkinson's inaugural trip in 1787. Although rivermen often suffered at the hands of Native Americans and Spanish officials, Halley seems to have gotten along well with everyone he met. He describes every encounter and tells of shooting the rapids at the Falls of Ohio (Louisville), getting stuck on a sandbar, breaking his steering oar, almost losing one of the men in a pile of driftwood, and many other adventures. He was a keen observer and comments on hunting and fishing along the way, local flora and fauna, weather and river conditions, settlements, and notable landmarks. 52 pp, illustrated




When Can I See Halley's Comet Again? | Kids Book About the Solar System Grade 4 | Children's Astronomy & Space Books


Book Description

What is the Halley’s Comet and when was it discovered? More importantly, who discovered it and in what circumstances. Further, what makes the Halley’s Comet different from all the other comets that have been observed so far? All these questions, along with other facts, will be explained in this learner’s book for children.




Halley's Comet


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Ben Halley's Crew


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