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
learn&master系列专门用来巩固提高知识点，以简答题为主，单项训练配合。没有压力感的刷题模式，提高小朋友解题效率。每个主题有3个练习部分：1、认知概念 让小朋友认识数学概念，并对数学概念逐步理解。2、理解问题 通过考试式的习题，强化所学的概念并深化它们。3、拓展思维 拓展分析能力，思考能力解决更具有挑战性的问题。4、答案详解 配备详细解题答案，让孩子更加清晰知道解题思路。
As a child, Charles Dickens worked in a shoe polish factory where his gritty surroundings inspired some of the most memorable characters and settings in literary history. Known for his masterful storytelling in books like Oliver Twist , Great Expectations , and A Christmas Carol , Dickens toured the globe as one of the most famous people of his era. Widely considered the greatest writer of the Victorian age, Dickens s literary masterpieces continue to amuse and inspire writers and readers alike.,
How long did it take to build the" Titanic? Why did it sink? What was it like to be a passenger? What happened to the people who survived? Find out the answers to these questions and more in Magic Tree House Research Guide: "Titanic, Jack and Annie's very own guide to the ship and its story. Includes information on the people who sailed on the "Titanic, life on board the ship, the search for the sunken remains, "Titanic artifacts today, and much more!
Adventure is waiting inside every MAGIC TREE HOUSE book!An adventure to blow you away!That's what Jack and Annie get when the Magic Tree House whisks them back to the 1870s. They land on the prairie near a one-room schoolhouse, where they meet a teenage schoolteacher, some cool kids, and one big, scary bully. But the biggest and scariest thing is yet to come!Your head will spin when you read...What do kids (and parents and teachers) have to say about the Magic Tree House books? Look on the opening pages!
