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The Biomechanics of Insect Flight. Form, Function, Evolution

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Midam et Kid Paddle : l'appel du blork plus fort que tout

Savez-vous capturer un Blork ? Utiliser au mieux un copy 2000 ? Ce que devient l'argent une fois glissé dans le fente d'un bouffe-fric ? Kid Paddle est là pour répondre à toutes ces importantes questions existentielles, à une époque où jeux vidéo, ordinateurs et autres CD-ROM dirigent les loisirs des enfants... et des adultes.

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L'intelligence artificielle au service du livre et de la lecture

On ignore si l’intelligence artificielle décidera d’écrire Guerre et Paix ou Les Misérables, mais les scientifiques y travaillent d’arrache-pied. L’évolution du livre et de l’édition passera par les travaux de chercheurs, qui demandent) des robots d’engloutir des livres... pour écrire de nouvelles histoires.

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Livres, actualités : tout sur Andrée Chedid

Née le 20 mars 1920 au Caire, en Égypte, sous le nom Andrée Saab, Andrée Chedid y mène ses études, apprenant le français et l'anglais, et utilisant de manière ponctuelle l'arabe. Avec son mari Louis Selim Chedid, qu'elle épouse en 1942, elle part au Liban l'année suivante, où elle publie son premier recueil poétique, On the Trails of My Fancy, sous le pseudonyme A. Lake.

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Game of Thrones, des livres de George R.R. Martin à la série HBO

Né en 1948 aux États-Unis, George R.R. Martin écrit au départ pour créer de nouvelles histoires mettant en scène les super-héros Marvel, puis pour tuer le temps, alors qu'il peine à trouver un emploi dans le secteur du journalisme. Petit à petit, il devient un auteur confirmé de nouvelles de science-fiction. Après avoir commencé une carrière comme scénariste de séries télévisées, il commence, au début des années 1990, à rédiger une saga de type fantasy, intitulée A Song of Ice and Fire et traduite en français sous le titre Le Trône de Fer.

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Voir, vivre, cohabiter : humains, avant tout chose

Dans un monde en constante évolution, où la technologie prend de plus en plus de place, il est essentiel de se rappeler de l'importance de l'humanité. Voir, vivre et cohabiter sont trois verbes qui définissent notre existence. Mais comment ces actions sont-elles influencées par les livres, outils intemporels de la connaissance?

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Le trône de fer : les livres de la saga A Song of Ice and Fire de George RR Martin

Le trône de fer est une immense saga d’héroïque fantasy qui s’inspire de la série des Rois maudits de Maurice Druon. C’est au début des années 1990 que Georges R.R. Martin commence à écrire Le trône de fer, le premier volume est publié en 1996. En 2007, la chaine de télévision HBO acquiert les droits d’adaptations. L’auteur lui-même participe à sa production et écrit le scénario d’un épisode par saison. 

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Sciences de la terre et de la

The Biomechanics of Insect Flight. Form, Function, Evolution

From the rain forests of Borneo to the tenements of Manhattan, winged insects are a conspicuous and abundant feature of life on earth. Here, Robert Dudley presents the first comprehensive explanation of how insects fly. The author relates the biomechanics of flight to insect ecology and evolution in a major new work of synthesis. The book begins with an overview of insect flight biomechanics. Dudley explains insect morphology, wing motions, aerodynamics, flight energetics, and flight metabolism within a modern phylogenetic setting. Drawing on biomechanical principles, he describes and evaluates flight behavior and the limits to flight performance. The author then takes the next step by developing evolutionary explanations of insect flight. He analyzes the origins of flight in insects, the roles of natural and sexual selection in determining how insects fly, and the relationship between flight and insect size, pollination, predation, dispersal, and migration. Dudley ranges widely - from basic aerodynamics to muscle physiology and swarming behavior - but his focus is the explanation of functional design from evolutionary and ecological perspectives. The importance of flight in the lives of insects has long been recognized but never systematically evaluated. This book addresses that shortcoming. Robert Dudley provides an introduction to insect flight that will be welcomed by students and researchers in biomechanics, entomology, evolution, ecology, and behavior.

01/2000

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Littérature française

Les inventeurs. Essai

What do Christopher Columbus, Reneke, Zénobe Gramme and Louis Pasteur have in common ? They were all inventors. Well fine, but who invented the crab's claw, the suction cups and the flight of squids or the proboscis of blood sucking insects ? Is invention intellectual fantasy, an industrial tool or a fundamental biological reaction ? How is this riddle to be solved ? Should we go through the list of inventions or inventors ? Is it a question of circumstances or motivations ? Who is in charge ? The Material or the Spirit ? In order to try to find a way of answering these questions, first a few very different inventors and their inventions will be presented. A few paradoxes emerge from this first part. Then we will devote an entire chapter to an exceptional inventor whose extraordinary work revolutionized how we now approach this topic. Finally, what can be said about all the inventions like the wings of birds or butterflies, the eyes of fish or insects, the leaves of trees or the social organization of beehives ? In these cases, man is not the inventor. There are countless marvels like these in the world around us. Can we explain them ? This will be the subject of the third part of this essay.

02/2017

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Littérature française

Mehersthan Memoir (Meher Baba)

Mehersthan Memoir (Meher Baba) This book is dedicated to the unique One who has assumed a form and name to lead the play of universal existence. He throbs in our loving heart ; He breathes in our living soul. He sings in our fervent spirit and he thinks in our purified mind. That infinite Ancient One from his supernal height, bends towards us to embrace us in his love, and to feed our soul with the nectar of his bliss. Blessed are they that have the mind to know him, the heart to feel him and the love to live in his consciousness ! He may have been born to human parents in Poona, studied in a college, played cricket, left home, have seen great souls, sat alone silent, spoken in gestures, written books - but that is not his history. Many live such a life ; many scholars write books ; many saints sit in contemplation ; many monks leave home for mountain resorts ; but they cannot be one like him. Millions of bulbs challenge in vain the darkness of night. One sun rises and the night dissolves into his golden light. One sun rises and the night dissolves into his golden light. We have seen monks, yogins and saints. Some live alone for peace. Some open Ashrams and collect donations to run them. Some comercialise their name and form. Some display miracles to surprise human minds ; some offer boons ; some predict the future ; some curse you when you do not offer them what they want. Some seek pleasure and treasure. But who seeks God and finds God in the self to awaken God-awareness in other men and women ? Who says "I am God and you are God too"? Who rises above the prattle of words, the rattle of weapons and battle of ideologies to the lofty peace of supersonic silence and pours his blessings from the dizzy height of the soul in tune with God ? Who is he that embraces all in the heart and awakens the soul which has none of the human creations of caste, religion, race, pedigree nor colour ? Editions ASSA, Christian Piaget

07/2017

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Sciences de la terre et de la

Of Fish, Fly, Worm and Man. Lessons from Developmental Biology for Human Gene Function and Disease

With the sequencing of several entire genomes, including that of Caenorhabditis elegans, completed, the stage is set for the next phase of "large-scale" biology, the identification of the functionality of, and the interplay between, all genes and their protein products. The aim of the ESRF Workshop 29 and hence of this book was to review the models, the powerful methodology, and selected achievements of developmental biology, which has in the past two decades not only unveiled basic molecular mechanisms of ontogenesis, but also made important contributions to deciphering signal transduction path-ways with general relevance to adult vertebrate physiology and ultimately to understanding mechanisms of pathogenesis.

01/2000

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Sciences de la terre et de la

Stars and Stellar Evolution

The diverse forms that stars assume in the course of their lives can all be derives from the initial conditions : the mass and the original chemical composition. In this textbook the basic concepts of stellar structure and the main roads of stellar evolution are described. First, the observable parameters are presented, which are based on the radiation emerging from a stellar atmosphere. Then the bascphysics is described, such as the physics of gases, radiation transport, and nuclear processes, followed by essential aspects of modelling the structure of stars. After a chapter on star formation, the various steps in the evolution of stars are presented. This leads us to brown dwarfs, to the way of star changes into the red-giant state and numerous other stages of evolution and ultimately to the stellar ashes such as white dwarfs, supernovae and neutron stars. Stellar winds, stellar rotation and convection all influence the way a star evolves. The evolution of binary stars is included by using several canonical examples in which interactive processes lead to X-Ray binaries and supernovae of type la. Finally, the consequence of the study of stellar evolution are tied to observed mass ans luminosity functions and to the overall evolution of matter in the universe.

02/2009

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Non classé

The Philosophical Background to Friedrich Schiller's Aesthetics of Living Form

Schiller defined the object of beauty as "living form." He explicitly related his thesis to a rationalistic aesthetics of form and to an empiricistic aesthetics of life. First the problem of aesthetic theorizing is treated. In the light of this discussion, respectively, the aesthetics of life, form, and living form are analyzed. First the respective ontological universe of each aesthetic theory is developed, then the aesthetic universe in terms of ontological commitments, and finally the specific interpretation of beauty is outlined.

12/1982

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