Prepare to learn everything we still don’t know about our strange and mysterious universeHumanity's understanding of the physical world is full of gaps. Not tiny little gaps you can safely ignore —there are huge yawning voids in our basic notions of how the world works. PHD Comics creator Jorge Cham and particle physicist Daniel Whiteson have teamed up to explore everything we don't know about the universe: the enormous holes in our knowledge of the cosmos. Armed w...

'Delightful, funny, and yet rigorous and intelligent' CARLO ROVELLIYou've got questions: about space, time, gravity, and the odds of meeting your older self inside a wormhole. All the answers you need are right here.As a species, we may not agree on much, but one thing brings us all together: a need to know. We all wonder, and deep down we all have the same big questions. Why can't I travel back in time? Where did the universe come from? What's inside a bla...

'This witty book reveals the humbling vastness of our ignorance about the universe, along with charming insights into what we actually do understand' Carlo Rovelli, author of Seven Brief Lessons on Physics and Reality Is Not What It SeemsIn our small corner of the universe, we know how some matter behaves most of the time and what even less of it looks like, and we have some good guesses about where it all came from. But we really have no clue wha...

Elinor learns about butterflies as she makes her costume for Insect Day.Elinor knows just what type of insect she’s going to be for Insect Day: a butterfly! She knows a lot about butterflies. She plans how she’ll make her costume, with her dad’s help: cutting cardboard, painting the wings and gluing the parts together. But there’s something she needs to find out first. She knows butterflies have two antennae and four wings. But how many legs do they have? Luckily, Elinor is a pro a...

Elinor and her friends solve a “sticky” mystery, in this latest title in the series.Ari’s cool new watch makes a skrrrrtch sound when he opens the strap, and then he can just press it closed again. Neither part of the strap is sticky, so how does it work? Elinor, Ari and Olive decide to investigate, starting with determining what else the material sticks to. While they’re searching outside, some spiky seeds get stuck on Ari’s sweater. Hmm, they make the same sound as the watch stra...

Elinor and her friends become plant detectives in this first Elinor Wonders Why picture book!When Elinor and Olive check on their class plants before leaving school for the weekend, everything looks good. But when the friends get back on Monday, they discover one of the plants has grown in a zigzag - up, then to the side, then up again. Their teacher said most plants only grow up, toward the sun. So, what happened to this one? Could it have something to do with how Ari knocked into...

Elinor and her friends look to nature to solve a squishy problem.Elinor, Ari and Olive want to bring a cupcake to school to give to Ms. Mole for her birthday. But the last time Olive brought a cupcake, it got squished in her book bag. So Elinor and her friends need to figure out how to stop the squish and get the cupcake safely to school. They notice some animals, such as turtles and armadillos, are protected by hard shells. Coconuts are, too. Hmm, has this given Elinor a perfect i...

Prepare to learn everything we still don’t know about our strange and mysterious universeHumanity's understanding of the physical world is full of gaps. Not tiny little gaps you can safely ignore —there are huge yawning voids in our basic notions of how the world works. PHD Comics creator Jorge Cham and particle physicist Daniel Whiteson have teamed up to explore everything we don't know about the universe: the enormous holes in our knowledge of the cosmos. Armed w...

'This witty book reveals the humbling vastness of our ignorance about the universe, along with charming insights into what we actually do understand' Carlo Rovelli, author of Seven Brief Lessons on Physics and Reality Is Not What It SeemsMany books explain what we know about the universe. This one, from the hugely popular PhD Comics (50 million readers since 2008), tackles all the weird stuff we haven't figured out yet.In ...

An eminent physicist at CERN and the cartoonist behind the hugely successful PhD Comics answer the most important, most outrageous and funniest questions about everything.You've got questions: about space, time, gravity, and the odds of meeting your older self inside a wormhole. All the answers you need are right here.As a species, we may not agree on much, but one thing brings us all together: a need to know. We all wonder, and deep down we all have the sa...

For readers of Bill Bryson, Neil deGrasse Tyson and Siddhartha Mukherjee, a wondrous, wildly ambitious, and vastly entertaining work of popular science that tells the awe-inspiring story of the elements that make up the human body, and how these building blocks of life travelled billions of miles and across billions of years to make us who we are.Every one of us contains a billion times more atoms than all the grains of sand in the earth’s deserts. If you weigh 150...

The comprehensive collection of letters spanning the adult life of one of the world’s greatest storytellers, now revised and expanded to include more than 150 previously unseen letters, with revealing new insights into The Hobbit, The Lord of the Rings and The Silmarillion.J.R.R. Tolkien, creator of the languages and history of Middle-earth as recorded in The Hobbit, The Lord of the Rings and The Silmarillion, w...