Its good to know what the parts of a thing are called, but its much more interesting to know what they do. . Richard . Feynman once said that if you cant explain something to a first-year student, you dont really get it. . In . Thing . Explainer, . Randall . Munroe takes a quantum leap past this: he explains things using only drawings and a vocabulary of just our 1,000 (or the ten hundred) most common words. Many of the things we use every day - like our food-heating radio boxes (microwaves), our very tall roads (bridges), and our computer rooms (datacentres) - are strange to us. . So are the other worlds around our sun (the solar system), the big flat rocks we live on (tectonic plates), and even the stuff inside us (cells). . Where do these things come from? . How do they work? . What do they look like if you open them up? . And what would happen if we heated them up, cooled them down, pointed them in a different direction, or pressed this button? In . Thing . Explainer, . Munroe gives us the answers to these questions and many, many more. . Funny, interesting, and always understandable, this book is for anyone - age 5 to 105 - who has ever wondered how things work, and why.