The Adventures of Tom Sawyer by Mark Twain is an 1876 novel about a young boy growing up along the Mississippi River. The story is set in the fictional town of St. Petersburg, inspired by Hannibal, Mi ... ssouri, where Twain lived.Tom Sawyer lives with his Aunt Polly and his half-brother Sid. Tom dirties his clothes in a fight and is made to whitewash the fence the next day as punishment. He cleverly persuades his friends to trade him small treasures for the privilege of doing his work. He then trades the treasures for Sunday School tickets which one normally receives for memorizing verses, redeeming them for a Bible, much to the surprise and bewilderment of the superintendent who thought "it was simply preposterous that this boy had warehoused two thousand sheaves of Scriptural wisdom on his premises—a dozen would strain his capacity, without a doubt."Tom falls in love with Becky Thatcher, a new girl in town, and persuades her to get "engaged" by kissing him. But their romance collapses when she learns Tom has been "engaged" previously to Amy Lawrence. Shortly after Becky shuns him, he accompanies Huckleberry Finn to the graveyard at night, where they witness the murder of Dr. Robinson. + Plus

Cette autobiographie imaginaire part d’une histoire vraie. En 1518, un ambassadeur maghrébin, de retour d’un pèlerinage à La Mecque, est capturé par des pirates siciliens, et offert en cadeau à Léon ... X. Ce voyageur s’appelait Hassan al-Wazzan. Il devint le géographe Jean-Léon de Médicis, dit Léon l’Africain. Sa vie, que ponctuent les grands événements de son temps, est fascinante: il se trouvait à Grenade pendant la Reconquista, d’où il a dû fuir l’Inquisition, en Égypte lors de la conquête du pays par les Ottomans, en Afrique noire à l’apogée de l’empire de l’Askia Mohamed Touré, enfin à Rome aux plus belles heures de la Renaissance, ainsi qu’au moment du sac de la ville par les soldats de Charles Quint. Homme d’Orient et d’Occident, homme d’Afrique et d’Europe, on pouvait difficilement trouver personnage dont la vie corresponde davantage à l’époque étonnante que fut le xvie siècle. + Plus

This book enhances existing knowledge in the field of wind systems. It explores topics such as grid integration, smart grid applications, hybrid renewable energy systems, and advancements in control a ... nd optimization approaches. The book primarily aims to provide a quick and comprehensive understanding of wind systems, including models, control techniques, optimization methods, and energy storage systems to students at both undergraduate and postgraduate levels, particularly those studying electrical engineering. The book is divided into two parts. The first part explores various stand-alone wind applications such as rural electrification and pumping, while the second part focuses on applications in grid-connected systems. Each system is accompanied by mathematical models and an illustrative example using the MATLAB/Simulink package. Moreover, numerous examples are presented for potential implementation using the DSPACE package. The book also introduces different electrical machine control approaches, including vector control, direct torque control, and fuzzy logic controllers for various drive systems. Furthermore, intelligent techniques are developed to optimize wind operations. Aiming to enhance existing knowledge in the field of wind systems, this book covers topics such as grid integration, smart grid applications, hybrid renewable energy systems, and advancements in control and optimization approaches. + Plus

High Quality Content by WIKIPEDIA articles! Viktor Stepanovich Grebennikov ( ) (1927-2001) was a Russian scientist, naturalist and entomologist who claimed to have invented a levitation platform which ... operated by virtue of insect body parts attached to the underside. Grebennikov wrote detailed accounts of his 1988 discovery, which involved an accident whilst examining chitin shells. He also wrote of his experiencies flying over the Russian countryside in his book titled My world; The Cavernous Structure Effect (CSE) he discovered is an alleged anti-gravity effect. The original version of this book was writen in russian. + Plus