Changes In Latitude

Trouble In Paradise Sixteen-year-old Travis is looking for a good time. A vacation in Mexico with his mother, sister, and little brother might cramp his style, but he's willing to take that risk for a chance to cruise the beaches. Travis soon discovers that even with his headphones and shades, he can't completely cut himself off from his family's problems. He begins to understand why his father didn't come with them: His mother is contemplating a divorce. Meanwhile his younger brother, Teddy, becomes increasingly obsessed with protecting some endangered sea turtles near the resort. In spite of himself, Travis is drawn into Teddy's efforts to save the turtles. But it takes a devastating tragedy beyond his imagining to shake Travis out of his cynicism -- a tragedy that will change his family forever.

Jen Malone, author of teen novels Wanderlost and Map to the Stars, will take readers to the high seas—literally—in this contemporary YA novel about a girl facing the dissolution of her parents’ marriage, a new romance, and self-discovery while sailing down the Pacific coast. After concluding that her is to blame for her parents’ recent divorce, Cassandra McClure is hoping to stay as far away from her as possible. With a summer of freedom right around the corner, it shouldn’t be too hard. But when a forty-foot sailboat appears in her driveway and her mom announces that Cassie and her brother Drew will be accompanying her on a four-month sailing trip down to Mexico, Cassie’s plans for the summer go, quite literally, overboard. Once the three set sail, tensions quickly rise. So meeting Jonah—a gorgeous, whip-smart deckhand—is an unexpected bright spot on an otherwise dim horizon. Though she tries to keep him at a distance—considering the upheaval of her home life—their chemistry is impossible to ignore, and Cassie soon finds herself questioning everything: Should she go for it with Jonah? Can she forgive her mom? Will home ever feel the same? With life’s unpredictable tides working against her, Cassie must decide whether to swim against them, or dive right in.

The dramatic human story of an epic scientific quest and of one man's forty-year obsession to find a solution to the thorniest scientific dilemma of the day--"the longitude problem." Anyone alive in the eighteenth century would have known that "the longitude 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 exploration had been literally lost at sea as soon as they lost sight of land. Thousands of lives and the increasing fortunes of nations hung on a resolution. One man, John Harrison, in complete opposition to the scientific community, dared to imagine a mechanical solution-a clock that would keep precise time at sea, something no clock had ever been able to do on land. Longitude is the dramatic human story of an epic scientific quest and of Harrison's forty-year obsession with building his perfect timekeeper, known today as the chronometer. Full of heroism and chicanery, it is also a fascinating brief history of astronomy, navigation, and clockmaking, and opens a new window on our world.

Vols. for 1911-13 contain the Proceedings of the Helminothological Society of Washington, ISSN 0018-0120, 1st-15th meeting.

"A review of astronomy" (varies).

Relatively small climate fluctuations, such as the warming period that was observed in recent decades, occur over periods of tens and hundreds of years, and are called near-term climate fluctuations. More significant climate changes occur over periods of tens of thousands of years, and they are called long-term climate changes. As a result of the interaction of the Earth with the Moon, the Sun and the planets, the orbital and rotational movements of the Earth are evolving. The orbit itself rotates counter-clockwise in its plane, making a complete revolution in 147 thousand years, and its axis makes one revolution in 68.7 thousand years around a certain direction. The axis of rotation of the Earth also rotates clockwise in 25.7 thousand years around another direction. In addition, these axes also exercise oscillatory movements. As a result of the evolution of these movements, the insolation of the Earth and, consequently, the Earth’s climate undergo changes. These long-term changes in the Earth’s insolation are analyzed in the astronomical theory of climate change, first proposed by M. Milankovich almost one hundred years ago. This book presents a new version of this theory. In contrast to the previous version, the problems concerning the evolution of the orbital and rotational movements of the Earth are solved here in a different way, with new results obtained. These new results coincide with observations and with the warming and cooling periods that took place in the Earth’s history. This book is intended for a wide range of readers of different specialties and ages. It can be used by both undergraduate students and graduate students in preparation of their term papers and dissertations.