Optical (Mehr als 26.000 Ergebnisse)

Hardback. Zustand: Good. Climb up the stairs or swim upstream. Are these pictures even possible? Optical illusions are tricks that our eyes and brain play on us to make us see things differently-like images that appear realistic until you give them a second look. Explore mind-boggling images and learn the science behind what makes them work. Then, take a turn making your own optical illusion. Get ready to be eye-mazed.…

Paperback. Zustand: Good. Ce livre est une cr ation de Manuel Garcia, une v ritable mine de plaisirs interdits et de rencontres passionn es, sp cialement con ue pour satisfaire les app tits rotiques les plus audacieux des lecteurs gays adultes. Pr pare-toi te plonger dans un tourbillon de d sirs inavouables, dans un univers rotique qui br le de passion et de s duction. Avec son criture magn tique et sensuelle, Garcia stimule tes fantasmes les plus secrets, t'emmenant dans un voyage au-del des fronti res de l'intimit masculine. Cet ouvrage d fie les conventions et brise tous les tabous, t'offrant un aper u des rencontres les plus explosives, des connexions les plus profondes et des plaisirs les plus extatiques. Les pages de ce livre r v lent des histoires qui te tiendront coll aux mots, veillant un d sir que tu ne pourras pas ignorer. Laisse-toi emporter dans des mondes inconnus, o le p ch est le moteur des motions les plus intenses. Les personnages cr s par Garc a se r v lent dans des rencontres transgressives, dans des moments de passion d brid e, dans une symphonie de d sir qui enflamme tes fantasmes les plus sombres. L' criture provocante et d taill e de Manuel Garc a est une explosion de sensualit qui te fera frissonner de plaisir. travers ses histoires, il t'invite explorer ta sexualit sans inhibitions, t'abandonner tes instincts les plus profonds, sans remords ni retenue. Cette oeuvre de fiction est ton passeport pour un monde de luxure et d'aventures interdites. Ne manque pas cette lecture qui t'emm nera dans un territoire de plaisir intense, de r ves effront s et de sensations qui te feront frissonner. Assieds-toi, d tends-toi et laisse-toi aller une lecture qui te procurera des motions sans limites, stimulera ton imagination et allumera une flamme de d sir qui ne peut tre apprivois e. Ces histoires t'attendent, pr tes t'emmener au-del des limites du plaisir, l o la passion est souveraine et o l'extase est ton compagnon de voyage.…

Paperback. Zustand: Good.

Paperback. Zustand: Good. This text contains close to 100 optical illusions, from picture puzzles with hidden objects, to shadow puppets, solid objects that cannot exist, straight lines that wave and bend, and pulsating patterns.

Paperback. Zustand: Good. Thin solid films are both functional and intrinsically interesting. Their most familiar use is as coatings on the lenses of optical instruments, where they reduce reflections inside the instrument and produce sharper images. Their curious optical behavior has aroused interest since Newton's time, but has been understood only in modem times through examination of their structure by high-powered microscopes. This text treats the formation, structure, optical properties and uses of thin films, emphasizing the causes of their anomalous optical behavior.Beginning chapters describe the physical nature of thin films-their formation and structure. Heavens discusses thoroughly and practically the common thermal evaporation and sputtering processes. The equipment used is explained and diagrammed. Instruments employed to investigate the structure of thin films -- the optical microscope, electron microscope and field emission microscope -- are described. Photos taken through these instruments show the nonuniform patterns formed by crystallites of silver, gold, chromium, aluminum, nickel and other metals deposited in thin films.The next three chapters measure the effectiveness of alkaline and metallic thin solid films in transmitting and reflecting light. Maxwell's equations of electromagnetic theory are presented to calculate the intensity of light transmitted or reflected by single, double and multilayered films. Thoroughly treated are methods used to measure the thicknesses of films, which include the refractometer and the interferometer. To determine the effect of thickness on the optical qualities of thin films, experiments with films of silver, gold and other metals of varying thicknesses are examined. In the final chapter, Heavens lists some less familiar uses of thin films: protection of delicate equipment from abrasions; films of metal which eliminate electrostatic charges in lab experiments; and multilayered films, used as filters, through which phenomena such as the sun's corona can be studied.Theory and practical detail are emphasized equally in this text. A slight background in differential equations is helpful in following the theoretical portions of the text, but the mathematical basis will not impede those who are chiefly interested in experimental techniques and results.…

Zustand: acceptable. This copy has clearly been enjoyedâ"expect noticeable shelf wear and some minor creases to the cover. Binding is strong, and all pages are legible. May contain previous library markings or stamps.

Hardback. Zustand: Good. A child's introduction to the world of optical illusions. Optical illusions are a window into how the brain perceives. Part of the fun is being fully aware that you're being tricked, fooled and misled. This collection of illusions will definitely do that Amazing Optical Illusions features thirty of the most fascinating images guaranteed to dazzle the eye and trick the mind. It includes examples of every type of optical illusion: Ground/field reversal images where one shape switches into another and back again Escher's Impossible Crate Eternal spirals and dazzling graphic patterns Enigmatic designs and hidden figures Baffling shapes that change before your eyes. The illusions are rendered in photography, artwork and the latest computer imaging. Each illusion is explained in clear language for young readers. Amazing Optical Illusions is a child's exciting introduction to the world's most startling optical illusions. It is a fascinating collection that will have all ages wondering exactly what they are seeing.…

Hardback. Zustand: Fair. A child's introduction to the world of optical illusions. Optical illusions are a window into how the brain perceives. Part of the fun is being fully aware that you're being tricked, fooled and misled. This collection of illusions will definitely do that Amazing Optical Illusions features thirty of the most fascinating images guaranteed to dazzle the eye and trick the mind. It includes examples of every type of optical illusion: Ground/field reversal images where one shape switches into another and back again Escher's Impossible Crate Eternal spirals and dazzling graphic patterns Enigmatic designs and hidden figures Baffling shapes that change before your eyes. The illusions are rendered in photography, artwork and the latest computer imaging. Each illusion is explained in clear language for young readers. Amazing Optical Illusions is a child's exciting introduction to the world's most startling optical illusions. It is a fascinating collection that will have all ages wondering exactly what they are seeing.…

Paperback. Zustand: Good. Brain Games Optical Illusions is a fun way to get the mental exercise you need. You'll be asked to draw on your powers of observation and visual reasoning skills in order to unlock the tricks behind these illusions. More than 150 different optical illusions to challenge your powers of perception. A variety of different optical illusions, from tricks of perspective to perceived motion, are included to keep you entertained. Answer key in the back of the book. Spiral bound, 160 pages.…

Paperback. Zustand: Fair. Brain Games Optical Illusions is a fun way to get the mental exercise you need. You'll be asked to draw on your powers of observation and visual reasoning skills in order to unlock the tricks behind these illusions. More than 150 different optical illusions to challenge your powers of perception. A variety of different optical illusions, from tricks of perspective to perceived motion, are included to keep you entertained. Answer key in the back of the book. Spiral bound, 160 pages.…

Paperback. Zustand: Good. This is a volume of over 300 optical illusions. It will put you to the test to see if you can believe your own eyes. What you see is not what you get.

Paperback. Zustand: Very Good. This is a volume of over 300 optical illusions. It will put you to the test to see if you can believe your own eyes. What you see is not what you get.

Paperback. Zustand: Fair. This is a volume of over 300 optical illusions. It will put you to the test to see if you can believe your own eyes. What you see is not what you get.

Paperback. Zustand: Good. Why not experience a mindbender every day? This book is a great way to enjoy an optical illusion every day or take them in all at once. Every page features an optical illusion from one of the three main types - literal, physiological and cognitive. Literal optical illusions create images that are unique from the objects that make them. Physiological illusions occur when the eyes and brain are subjected to excessive stimulation by brightness, colour, size, position, tilt or movement. Cognitive illusions are theresult of unconscious inferences. All trick the mind into perceiving something altogether different than what the eyes see. The 365 illusions here are based on those variations. There are instantly recognizable classics that trick the eye no matter how many times you see them, and dozens of new ones, like astounding pavement illusions and masterful architecture. There are illustrations, paintings and graphics, as well as colour and black and white photographs of scenes ranging from buildings to landscapes. Concise text includes a hint about the illusion - for those who can't 'see' it - and a short description of how it works. Bright, colourful and sure to boggle, this is an ideal gift selection for all ages.…

Paperback. Zustand: Good. A vivid portrait of nature's most fascinating and unexpected events. This is an illustrated guide to nature's most theatrical and mysterious events, from eclipses and the aurora borealis to rainbows and light pillars. Dr. Keith Heidorn combines engaging text with color photographs and line drawings to describe each phenomenon in simple, non-technical terms. The field guide examines the origins and behaviors of natural phenomena and draws on science, history, folklore, travel and other disciplines. Some are familiar events, yet others are once-in-a-lifetime spectacles. They include: Optical phenomena, such as green flashes, crepuscular rays, coronas, mirages Atmospheric phenomena, such as dust devils, haboobs, lenticular clouds, pea soupers Electrical phenomena, such as ball lightning, St. Elmo's fire, will-o'-the-wisps Aquatic phenomena, such as ice circles, diamond dust, tidal bores, waterspouts Geological phenomena, such as stone arches, mud pots, petrified forests, salt lakes Celestial phenomena, such as meteors, comets, eclipses, the Milky Way Sixteen identification guides detail the phenomena and how each occurs. The Field Guide to Natural Phenomena provides specific information for general readers and weather watchers about where and when nature puts on these creative performances.…

Paperback. Zustand: Good.

Paperback. Zustand: Fair. The item might be beaten up but readable. May contain markings or highlighting, as well as stains, bent corners, or any other major defect, but the text is not obscured in any way.

Paperback. Zustand: Good. With this book you can enter a realm of dazzlingly deceptive designs that offer wonderful opportunities for imaginative and inventive coloring. You'll find a host of ingeniously contrived constructions, strange, interlocking shapes and mind-boggling arrangements that defy reality and challenge the imagination to grasp their form and structure. 30 illustrations.…

Paperback. Zustand: Fair. With this book you can enter a realm of dazzlingly deceptive designs that offer wonderful opportunities for imaginative and inventive coloring. You'll find a host of ingeniously contrived constructions, strange, interlocking shapes and mind-boggling arrangements that defy reality and challenge the imagination to grasp their form and structure. 30 illustrations.…

Paperback. Zustand: Very Good. With this book you can enter a realm of dazzlingly deceptive designs that offer wonderful opportunities for imaginative and inventive coloring. You'll find a host of ingeniously contrived constructions, strange, interlocking shapes and mind-boggling arrangements that defy reality and challenge the imagination to grasp their form and structure. 30 illustrations.…

Paperback. Zustand: Very Good.

Paperback. Zustand: Good.

Paperback. Zustand: Very Good. It's a well-cared-for item that has seen limited use. The item may show minor signs of wear. All the text is legible, with all pages included. It may have slight markings and/or highlighting.

Paperback. Zustand: Very Good.

Paperback. Zustand: Very Good.

Paperback. Zustand: Good.

Paperback. Zustand: Good. If you like the challenge of coloring optical designs, you'll love this book from award-winning artist and designer Ruth Heller It's filled with geometric patterns that will challenge your imagination. There are large, bold designs that cover the whole page, as well as smaller repeat designs. You can create wonderful abstract patterns and have hours of coloring fun.…

Paperback. Zustand: Good. Every type of optical illusion is here, along with notes about the science of each visual perception and how the illusions work.

Paperback. Zustand: Very Good. Every type of optical illusion is here, along with notes about the science of each visual perception and how the illusions work.

Paperback. Zustand: Fair. Every type of optical illusion is here, along with notes about the science of each visual perception and how the illusions work.