Breaking down the symbols themselves, they pose a series of questions: What is energy? What is mass? What has the speed of light got to do with energy and mass? In answering these questions, they take us to the site of one of the largest scientific experiments ever conducted. Lying beneath the city of Geneva, straddling the Franco-Swiss boarder, is a 27 km particle accelerator, known as the Large Hadron Collider. Using this gigantic machine—which can recreate conditions in the early Universe fractions of a second after the Big Bang—Cox and Forshaw will describe the current theory behind the origin of mass.Alongside questions of energy and mass, they will consider the third, and perhaps, most intriguing element of the equation: 'c' - or the speed of light. Why is it that the speed of light is the exchange rate? Answering this question is at the heart of the investigation as the authors demonstrate how, in order to truly understand why E=mc2, we first must understand why we must move forward in time and not backwards and how objects in our 3-dimensional world actually move in 4-dimensional space-time. In other words, how the very fabric of our world is constructed. A collaboration between two of the youngest professors in the UK, Why Does E=mc2? promises to be one of the most exciting and accessible explanations of the theory of relativity in recent years.

    . . and down in the dirt.Explore the secret world beneath the dirt that brings the world of nature to life: Up in the garden, the world is full of green—leaves and sprouts, growing vegetables, ripening fruit. But down in the dirt exists a busy world—earthworms dig, snakes hunt, skunks burrow—populated by all the animals that make a garden their home. With Up in the Garden and Down in the Dirt, you can explore the hidden world and many lives of a garden through the course of a year!• Follow a young girl and her grandmother as they journey through the year planning, planting, and harvesting their garden—and learn about what's happening in the dirt to help make it all happen• The stunning and bright illustrations feature dark earthy tones mixed with beautiful pops of color inspire a love of nature and encourage young minds to explore the world around them• Includes a glossary of animals that live in, around, and under the garden to enrich the reading experienceFans of A Seed is Sleepy, Spring is Here, and A Nest is Noisy will also love the outstanding illustrations and educational storyline in Up in the Garden and Down in the Dirt."The harmonious relationships above and below ground, and those between the two, emphasize the complexities of the garden ecosystem, as well as the joys of sustained engagement with the land." —The Horn Book Magazine• Great read-aloud book for families and classrooms• Books for kids ages 5-8• Early elementary school books• Books for kindergarten to 3rd grade

    Perfect for reading on winter days, the book features photos of real snow crystals in their beautiful diversity. Snowflake-catching instructions are also included.

    Illustrated with black-and-white art.When a teacher asks her class what one thing they would save in an emergency, some students know the answer right away. Others come to their decisions more slowly. And some change their minds when they hear their classmates’ responses. A lively dialog ignites as the students discover unexpected facets of one another—and themselves. With her ear for authentic dialog and knowledge of tweens’ priorities and emotions, Linda Sue Park brings the varied voices of an inclusive classroom to life through carefully honed, engaging, and instantly accessible verse.

    Some were adopted by loving families; others were not as fortunate. In recent years, some of the riders have begun to share their stories. Andrea Warren alternates chapters about the history of the orphan trains with the story of Lee Nailling, who in 1926 rode an orphan train to Texas when he was nine years old.

    Have you ever wondered how Daleks climb stairs? How Cybermen make little Cybermen? Or where the Tardis' toilets are? With style and exuberance, 'The Science Of Doctor Who' brings the very latest thinking down to Earth.

    Three Guides in One! Identification, Values, Lapidary UsesDesigned with beginners in mind, yet filled with valuable technical information for advanced collectors, "Collecting Rocks, Gems and Minerals" takes you from being just someone who appreciates rocks to a true "collector."Easy-to-use, quick reference format arranged by category and color of stoneCovers both lapidary and mineral display materialsProvides values and tips for locating, buying and collectingIncludes organics such as amber, bone, coral, pearl and shellLists chemical group, system, hardness, opacity, fracture, specific gravity and moreContains more than 650 full-color photosForeword by Johann Zenz, world renowned agate expert, author and lecturer

    A simple and colorful introduction to birds and bird behavior, accompanied by beautifully detailed illustrations from noted wildlife illustrator John Sill.

    His mom is stressed out about her jobs. But Mars refuses to give up--after all, his own dad disappeared when Mars was a toddler, before he and Ma moved to Puget Sound from India. Luckily, Mars has a group of loyal friends eager to help--smart Toothpick, strong and stylish JP, and maybe-telepathic Caddie. The clues seem to point toward eccentric tech genius (and Mars's hero) Oliver Pruitt, whose popular podcast now seems to be commenting on their quest! But when the friends investigate Pruitt's mysterious, elite school, nothing is as it seems--and anyone could be deceiving them. Slick science, corporate conspiracies, and an endearingly nerdy protagonist make this a fresh, exciting sci-fi adventure.

    Take a journey around the Earth in 26 letters with this special book.

    Chemistry will never be the same!

    But Akash has spent his entire twelve years poor and hungry. So he decides to take control of his own life and try for a scholarship to the city school where he can pursue his beloved math. But will challenging destiny prove to be more than he has bargained for? In this raw and powerful novel, fate and self-determination come together in unexpected ways, offering an unsentimental look at the realities of India.Saraswati's Way is a 2011 Bank Street - Best Children's Book of the Year.

    There across the road, it looked like any rocky hill—nothing but sand and rocks, and some old wooden boxes. But it was a special place. And all children needed to go there was a long stick and a soaring imagination.“A celebration of the transforming magic of the imagination. An original.” —ALA Booklist

    Rocks can build, sparkle, and tell a story. They can be memories. They can even be a little bit magic. This ode to curiosity and creative play from New York Times bestselling author Pat Zietlow Miller and acclaimed illustrator Katie Kath is bound to inspire.

    A concise main text highlights how feathers are not just for flying. More curious readers are invited to explore informative sidebars, which underscore specific ways each bird uses its feathers for a variety of practical purposes. A scrapbook design showcases life-size feather illustrations.