Building these simple yet sophisticated machines introduces fundamentals of math and physics using levers, force, torsion, tension, and traction. Instructions and diagrams illustrate how to build seven authentic working model catapults, including an early Greek ballista, a Roman onager, and the apex of catapult technology, the English trebuchet. Additional projects include learning how to lash and make rope and how to construct and use a hand sling and a staff sling. The colorful history of siege warfare is explored through the stories of Alexander the Great and his battle of Tyre; Saladin, Richard the Lionheart, and the Third Crusade; pirate-turned-soldier John Crabbe and his ship-mounted catapults; and Edward I of England and his battle against the Scots at Stirling Castle.

    Building on their experience as professional systems analysts and award-winning teachers, authors Dennis, Wixom, and Roth capture the experience of developing and analyzing systems in a way that students can understand and apply.With Systems Analysis and Design, 4th edition , students will leave the course with experience that is a rich foundation for further work as a systems analyst.

    Part One presents the general principles of pathophysiology and discusses the influence of the environment and the role of genetics in the development of disease. Part Two, organized by body system, examines normal anatomy and physiology, alterations of function in adults, and alterations of function in children.

    A sprightly, lavishly illustrated book on the science of human survival.How do people survive extremes of heat, cold, depth, speed and altitude? This book explores the limits of human survival and the physiological adaptations which enable us to exist under extreme conditions. In man’s battle for survival in the harshest of environments, the knowledge imparted by physiology, the ‘logic of life’, is crucial. What causes mountain sickness? Why is it possible to reach the top of Everest without supplementary oxygen, yet be killed if a plane depressurises suddenly at the same altitude. Why are astronauts unable to stand without fainting when they return to Earth? Why do human divers get the bends but sperm whales don’t? Will men always be able to run faster than women? Why don’t penguins get frostbite?

    The book uses the theme of evolution to develop a broad-scale view of animal diversity--students focus not only the organisms themselves, but also the processes that produce evolutionary diversity. The book is unique in its comprehensive survey of zoological diversity and its emphasis on evolutionary, systematic and ecological principles, all in one package.

    

    REX springs out, flashing a startling jawful of jagged teeth. Turn the next spread and a ravishing raptor unfurls and appears to fly off the edge of the page. Inside the amazing ENCYCLOPEDIA PREHISTORICA: DINOSAURS are "shield bearers" in full-body armor, creatures with frilly headgear, and weighty, long-necked giants. There are even amusing tidbits on the history of paleontology itself — like a pop-up version of a Victorian New Year's dinner in the belly of a dinosaur model, or a pair of scientists locked in a literal tug-of-war over bones.Full of fascinating facts and lighthearted good humor, this breathtaking book includes fascinating, up-to-the-minute information about popular dinosaurs as well as many lesser-known varieties. With each of six spreads featuring one spectacular, large pop-up as well as booklets of smaller pop-ups and text, ENCYCLOPEDIA PREHISTORICA: DINOSAURS is a magnificent display of paper engineering and creativity — an astonishing book that will be read, admired, and treasured forever.

    Each chapter begins with clearly stated objectives, includes clinical cases, and ends with clinical notes, clinical problems, and review questions. More than 450 illustrations enhance the text.This edition's illustrations have been reworked for greater visual appeal and more diagnostic images have been added. Selected illustrations from Haines' Neuroanatomy: An Atlas of Structures, Sections, and Systems, Sixth Edition have been included. Coverage of neurophysiology has been expanded and updated.A bound-in CD-ROM contains 386 USMLE-style review questions with answers and explanations.

    Rich illustrations, systematic resumes, and extensive citations make it a valuable references source.

    Author Barrett adds to the fun of finding them by turning the search into six scavenger hunts, complete with clues, hints, and points to be scored. You'll find more than 200 new Mickey sightings in this edition over 1,000 hidden Mickeys in all. Fun for all ages!

    Life is a beauty, admire it. Life is a dream, realize it. Life is a challenge, meet it. Life is a duty, complete it. Life is a game, play it. Life is a promise, fulfil it. Life is sorrow, overcome it. Life is a song, sing it. Life is a struggle, accept it. Life is a tragedy, confront it. Life is an adventure, dare it. Life is luck, make it. Life is life, fight for it!” Mother Teresa Do you feel down sometimes and in need of inspiration?Do you want the largest collection of Inspirational Quotes you can get to give you the few words of encouragement you need, a collection that covers topics from ‘Motivation’ to ‘Destiny’ to ‘Love’?Do you want a collection that even includes a special Humor section to make you smile and laugh?Then you want this collection from Everlasting Flames Publishing - designed for You!“Take the first step in faith. You don’t have to see the whole staircase, just take the first step.” Dr. Martin Luther King Jr.“Better to light a candle than curse the darkness.” Chinese Proverb THE 'MUST-HAVE' COLLECTIONWe all feel at a loss sometimes and need some simple pick me ups to help us become motivated and in control once more.That’s why this Inspirational Quote Ultimate Collection was created. “Life has taught us that love does not consist in gazing at each other, but in looking outward together in the same direction.” Antoine de Saint ExuperyTHE BIGGEST COLLECTION AVAILABLEIn this wonderful collection you get over 3000 fantastic quotes and amazing sayings, to inspire you every day, to help achieve your goals! EASY TABLE OF CONTENTSThe collection has an easy Table of Contents, dividing the quotes into different topics, such as ‘Inspiration’, ‘Determination’ and ‘Finding Happiness’.This makes it easy for you to jump to a section for the special pick me up you need at a specific moment.All the quotes are drawn from famous people and personalities from around the world, Socrates to Churchill to Tony Robins, motivational speakers to great philosophers and writers.“Courage doesn’t always roar. Sometimes courage is the quiet voice at the end of the day saying, ‘I will try again tomorrow’.” Mary Anne Radmacher HersheySPECIAL UNIQUE HUMOR SECTIONThe collection also includes a very special collection of Humorous Quotes and sayings, showing the funny side of optimism, happiness, money and business, drawn from comedians and famous humorists, from Mark Twain to Henny Youngman to Richard Lewis. Laughter is really the best medicine and its power to heal and motivate should never be overlooked!DON'T MISS OUT!As you read this, you can understand why you have to have this Ultimate Collection, because it is the best collection you can get. At a price that is next to nothing...You already know you want the most complete collection, so don't accept other collections that are lacking. Get this Inspirational Quotes Ultimate Collection right now and let it start changing your world!“It does not matter how slowly you go so long as you do not stop.” ConfuciusAFTER YOUR PURCHASE PLEASE LOOK UP OUR OTHER TITLES YOU MIGHT LIKEBIBLE VERSES ULTIMATE 500+ Beautiful Verses PLUS SPECIAL CHRISTMAS SECTIONMOTHER QUOTES ULTIMATE 3

    . . [with] new information, photographs and first-hand accounts." --FlypastDuring the 1950s, plans were being drawn at North American Aviation in Southern California for an incredible Mach-3 strategic bomber. The concept was born as a result of General Curtis LeMay's desire for a heavy bomber with the weapon load and range of the subsonic B-52 and a top speed in excess of the supersonic medium bomber, the B-58 Hustler. However, in April 1961, Defense Secretary McNamara stopped the production go-ahead for the B-70 because of rapid cost escalation and the USSR's newfound ability to destroy aircraft at extremely high altitude using either missiles or the new Mig-25 fighter. Nevertheless, in 1963 plans for the production of three high-speed research aircraft were approved and construction proceeded. In September 1964 the first Valkyrie, now re-coded A/V-1, took to the air for the first time and in October went supersonic.This book is the most detailed description of the design, engineering and research that went into this astounding aircraft. It is full of unpublished details, photographs and firsthand accounts from those closely associated with the project. Although never put into full production, this giant six-engined aircraft became famous for its breakthrough technology, and the spectacular images captured on a fatal air-to-air photo shoot when an observing Starfighter collided with Valkyrie A/V-2 which crashed into the Mojave Desert."Well-illustrated with numerous diagrams and black and white photographs, the book provides an interesting insight into one of the so-called 'white elephant' projects of the 1960s." --Jets Monthly

    Make that pretty huge. No, wait--it's GIGANTIC! Presenting Uncle John's Gigantic Bathroom Reader, featuring two of our best-selling and hard-to-find titles: Uncle John's Absolutely Absorbing Bathroom Reader and Uncle John's Giant 10th Anniversary Bathroom Reader, now bound together in this omnibus hardcover edition for your reading pleasure. Tipping the scales at more than 700 pages, this massive missive is guaranteed to boost your IQ! Packed with fun facts, tantalizing tidbits, and intriguing information, this is no book for the faint of heart. This gigantic volume has it all: entertainment, humor, forgotten history, science, origins of everyday things, strange lawsuits, and a great big pile of pop culture. So don't go to your throne alone -- take Uncle John with you!

    We like to imagine that it’s based on evidence and the results of fair tests. In reality, those tests are often profoundly flawed. We like to imagine that doctors are familiar with the research literature surrounding a drug, when in reality much of the research is hidden from them by drug companies. We like to imagine that doctors are impartially educated, when in reality much of their education is funded by industry. We like to imagine that regulators let only effective drugs onto the market, when in reality they approve hopeless drugs, with data on side effects casually withheld from doctors and patients.All these problems have been protected from public scrutiny because they’re too complex to capture in a sound bite. But Dr. Ben Goldacre shows that the true scale of this murderous disaster fully reveals itself only when the details are untangled. He believes we should all be able to understand precisely how data manipulation works and how research misconduct on a global scale affects us. In his own words, “the tricks and distortions documented in these pages are beautiful, intricate, and fascinating in their details.” With Goldacre’s characteristic flair and a forensic attention to detail, Bad Pharma reveals a shockingly broken system and calls for something to be done. This is the pharmaceutical industry as it has never been seen before.

    - Collections of thrilling adventure stories, all based on actual life events- Ideal for reluctant readers.