内容简介 From the creator of the wildly popular webcomic xkcd comes this hilarious and informative book of answers to important questions you probably never thought to ask. Millions of people visit xkcd.com each week to read Randall Munroe's iconic webcomic. His stickfigure drawings about science, technology, language, and love have a large and passionate following. Fans of xkcd ask Munroe a lot of strange questions. What if you tried to hit a baseball pitched at 90 percent of the speed of light? How fast can you hit a speed bump while driving and live? If there were a robot apocalypse, how long would humanity last? In pursuit of answers, Munroe runs computer simulations, pores over stacks of declassified military research memos, solves differential equations, and consults with nuclear reactor operators. His responses are masterpieces of clarity and hilarity, complemented by signature xkcd comics. They often predict the complete annihilation of humankind, or at le

漫漫求水路 英文原版小说 A Long Walk to Water 治愈 励志 苦难与希望的交错人生 青少年课外阅读 纽约时报畅销书

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Harry Potter is lucky to reach the age of thirteen, since he has survived the murderous attacks of the feared Dark Lord on more than one occasion. His hopes for a quiet school term concentrating on Quidditch are dashed, though, when a maniacal mass-murderer escapes from Azkaban, pursued by the soul-sucking Dementors who guard the prison. It's assumed that Hogwarts is the safest place for Harry to be. But is it his imagination that is making him feel eyes watching him in the dark, and should he be taking Professor Trelawney's ghoulish predictions seriously? These new editions of the classic and internationally bestselling, multi-award-winning series feature instantly pick-up-able new jackets by Jonny Duddle, with huge child appeal, to bring Harry Potter to the next generation of readers. It's time to PASS THE MAGIC ON .,

The saga and success of "The Magic Tree House continues! The tenth adventure, "Ghost Town at Sundown, is filled with the excitement, action, and fun facts "always found in "Magic Tree House books. Morgan le Fay has promised to make Jack and Annie masters of the tree house if they can solve four riddles. In "Ghost Town at Sundown, the Magic Tree House whisks Jack and Annie back to a ghost town in the Wild West of the 1880s. There, they meet a mustang herder named Slim as they search for the answer to the second riddle.

From the creator of the worldwide bestsellers Secret Garden and Enchanted Forest , a beautiful new coloring book that takes you on a magical journey beneath the waves With Lost Ocean , Johanna Basford invites color-inners of all ages to discover an enchanting underwater world hidden in the depths of the sea. Through intricate pen and ink illustrations to complete, color, and embellish, readers will meet shoals of exotic fish, curious octopi, and delicately penned seahorses. Visit coral reefs and barnacle-studded shipwrecks, discover intricate shells and pirate treasure. Secret Garden and Enchanted Forest fans and newcomers alike will welcome this creative journey into an inky new world.,

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Adam Smith (1723-1790) was one of the brightest stars of the eighteenth-century Scottish Enlightenment. An Inquiry into the Nature and Causes of the Wealth of Nations was his most important book. First published in London in March 1776, it had been eagerly anticipated by Smith's contemporaries and became an immediate bestseller. That edition sold out quickly and others followed. Today, Smith's Wealth of Nations rightfully claims a place in the Western intellectual canon. It is the first book of modern political economy, and still provides the foundation for the study of that discipline. But it is much more than that. Along with important discussions of economics and political theory, Smith mixed plain common sense with large measures of history, philosophy, psychology, sociology, and much else. Few texts remind us so clearly that the Enlightenment was very much a lived experience, a concern with improving the human condition in practical ways for real people. A masterpiece by any measure, Wealth of Nations r

A dolly in a bubbly bath, three rubbery bath ducks, a shiny octopus, a sparkly mermaid, and more the images in this board book will appeal to inquisitive babies and toddlers. Every page has a texture to touch or foil and glitter to behold, encouraging sensory development and early reading skills. With padded covers, simple images, and novelty textures, Baby Touch and Feel books capture the attention of the very youngest children, and create an experience they'll want to repeat again and again.,

While teaching upper- and lowercase letters to preschoolers, Ehlert introduces fruits and vegetables from around the world. A glossary at the end provides interesting facts about each food. ,

This title contains high-contrast images that are easy for babies to focus on. It contains pictures of foods and provides prompts for parents to make sounds for their babies to hear.,

Meg's father mysteriously disappears after experimenting with the fifth dimension of time travel. Determined to rescue him, Meg and her friends must outwit the forces of evil on a heart-stopping journey through space and time. A commemorative edition with an Introduction by the author. A Newbery Medal winner.

First published in 1947, this picture book classic has remained one of Marcia Brown's most popular and enduring books. This story, about three hungry soldiers who outwit the greedy inhabitants of a village into providing them with a feast, is based on an old French tale.,

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Next stop for the New York Times bestselling Magic Tree House series? The World Cup in Mexico City! Goal! Jack and Annie have tickets to one of the most exciting soccer games ever the 1970 World Cup! They are sure the famous soccer player Pel will tell them a secret of greatness. The game is nonstop action and the stands are packed. But how will they find Pel in a crowd of 100,000 soccer fans? Have they failed their mission? Or will the answer come when they least expect it? Have more fun with Jack and Annie on the Magic Tree House website at MagicTreeHouse.com. From the Hardcover edition. ,

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