Titres dans Science et technologie

Entrando nel crepuscolo della propria vita, un astrofisico di fama mondiale si pone una domanda: cosa vorrei che sapessero i miei nipoti dell'Universo in cui continueranno ad abitare quando io non ci sarò più? Nasce così questo dialogo immaginario tra un vecchio e un bambino che in una notte, seduti su comode sdraio, osservano il cielo. Attendendo le stelle cadenti, l'anziano scienziato risponde agli interrogativi sempre più incalzanti del giovane: di che materia sono fatte le stelle? Come si alimenta il sole? Cosa significa che l'Universo è in espansione? Siamo soli nell'Universo?

Just looking at the periodic table can be enough to give young science students a serious headache. But as you’ll soon find out, all those mysterious numbers and letters are clues to the amazing world of elements. The brainchild of Siberian superchemist Dimitri Mendeleev, the periodic table represents the 111 known elements, from hydrogen and oxygen to nobelium and lawrencium. But this doesn’t mean there are only 111 elements in the universe.

Alan loves animals, but the great cat house at the Bronx Zoo makes him sad. Why are they all alone in empty cages? Are they being punished? More than anything, he wants to be their champion--their voice--but he stutters uncontrollably. Except when he talks to animals... Then he is fluent. Follow the life of the man Time Magazine calls, "the Indiana Jones of wildlife conservation" as he searches for his voice and fulfills a promise to speak for animals, and people, who cannot speak for themselves.

Nine remarkable men produced inventions that changed the world. The printing press, the telephone, powered flight, recording, and other innovations have made the modern world what it is. But who had these ideas and made realities of them? As David Angus explains, they were very different: quiet, boisterous, confident, or withdrawn. But all had a moment of vision that they combined with single-minded determination to battle through numerous obstacles and produce something that really worked.

NBA star Boris Diaw of the San Antonio Spurs takes young listeners on safari as he explores his off-court passion: wildlife photography! Join Diaw as he escapes from stampeding wildebeests, comes face-to-face with lions, and discovers why you should never come between a hippo and its watery home. Through engaging stories and photos by Diaw, listeners will discover a whole new side to this basketball champ.

Have you ever wondered how computers follow instructions so well? Or how they do math so quickly? Basic principles of coding, including variables, binary code, loops, programming languages, and more, are explored in this newest engaging addition to the How Do series.

Would you believe it if I told you that every bird you see - even the smallest hummingbird - is a dinosaur? Well, that’s what many scientists now believe! Follow along as scientists examine ancient fossils and pose new theories on how prehistoric dinosaurs evolved into today’s modern birds. Packed with exciting stories of unearthing ancient fossils and tales of what early feathered dinosaurs might have looked like, this book will have imaginations running wild. From the very first birds, with only tiny dino-fuzz covering their bodies, to the mystery of how dinosaurs finally took to the air, listeners will explore the startling connection between the birds they encounter every day and their very distant relatives.

A successful journalist, Victoria Griffith, makes her first foray into children's fiction with the story of Alberto Santos-Dumont, the larger-than- life Brazilian who many argue flew before the Wright brothers. It was 1906 in Paris when Alberto, challenged by a fellow inventor, turned his dirigible into a flying machine and cemented his place in the history of flight.

Shoot back in time 4.5 billion years to see how planet Earth was formed and then leap into the future to see what happens when stars die. Everything has a beginning and an end, but what happens in between? Meet dolphins jumping in the ocean waves, penguins travelling on the ice, and butterflies fluttering in the sky. You'll take a closer look at the life cycles of environments, too. Discover how a river forms and changes over time. Find out how a tree grows and all of the other life cycles it supports within it.

Popcorn is a yummy snack–how is popcorn cooked? From an un-popped kernel, heat boils the water that the kernel naturally has inside it. The water turns into steam after it builds up inside. Scientists used cameras to discover how corn popped! What’s inside the kernel to make an explosive change happen–turning a kernel of corn into a tasty buttery treat–popcorn?

Die Neugier unserer Jüngsten kennt keine Grenzen. Alles wollen sie genau wissen und den ganzen Tag sind sie damit beschäftigt, uns Erwachsenen unzählige Fragen zu stellen. Wieso kaut die Kuh auch im Liegen? Wie belagert der Ritter eine Burg? Warum sind Feuerwehrautos rot? Wozu hat der Triceratops drei Hörner? Diese Hörspielreihe ist für alle Kinder gemacht, die noch nicht lesen können oder es gerade erst lernen. Sie entführt wissbegierige kleine Weltentdecker zu Geschichten und Schauplätzen, die ihnen am Herzen liegen und die sie begeistern.

El padre de Santiago Ramón y Cajal, el médico del pueblo, quiere que Santiago también sea médico. Desalienta la aptitud y el intenso amor que su hijo siente por el arte. Pero, para Santiago, dibujar y pintar son tan necesarios como respirar. Así que cuando su padre le confisca sus materiales de arte, el niño encuentra la forma de dibujar en secreto. Dibuja en puertas, porterías y paredes, pero sus dibujos incordian a los vecinos. Sin embargo, Santiago ve las cosas diferente.

Learn more about how the search for extraterrestrial life and the search for planets are linked, the exoplanets and extremophiles that can be found all over the galaxy, and the weird and wonderful ways scientists think we (might) be able to travel around space. At the Supervillain Academy, listeners will learn about the solar system, galaxies, the universe, and, most importantly, the answer to the question “Are we really alone?”

Can you guess when trees stop growing–they don’t stop! Their massive roots keep them in the ground and require plenty of water, sunshine and nutrients from the soil to help them grow. Trees are the oldest, largest and tallest living things on Earth, with the oldest part of the tree being its strong, woody middle. Find out how a maple tree gets its start! How does a tree grow?

Over the waves, sea lions bark and seagulls wheel and call. The bay is smooth and bright in the sun. But under the waves, there’s a whole hidden forest full of whales and wolf eels, sardines and sea bass, and leopard sharks and luminous jellies, as well as the waving kelp that shelters them all.

PBJ Decks Smokin Gun (Gunner) is an American Paint Horse, one of the many of Heather Lott Goodwin's herd, and a valuable show animal that won the World Championship Paint Horse title. When Hurricane Katrina passed over the Goodwin property, it took with it the fences, the cattle, and several horses. Heather and her family lived in their horse trailer for six weeks and considered themselves lucky to have safe, comfortable shelter. After the storm, they searched for the animals and recovered many of them. But three months passed before they located Gunner, a hundred miles away.

Covered in armoured plates and sharp spikes, weighing more than an elephant, and swinging a deadly tail club capable of smashing through bone, Ankylosaurus is an Ultimate Dinosaur. But one we know very little about. Why have so few of their skeletons been found? Could they really have used their tails to take down an attacking Tyrannosaurus rex? Find out about this indestructible dinosaur.

Who would win in a slow sprint, the Australian Tiger Beetle or the American falcon? Is the sperm whale built to be a great long-distance swimmer or is perseverance her winning attribute? What would a tiger look like in a bikini? Find out all of this and more in the Animal Games, a competition like no other, where the world's most fascinating animals go head to head to become champions in their field. Full of fascinating and surprising facts and motivational takeaways that show even the most understated animals have hidden skills, you can't always judge something by its appearance.

The exquisite and thought-provoking new book from the multiaward-winning, internationally best-selling creator of Lost and Found, Oliver Jeffers. Well, hello. And welcome to this planet. We call it Earth. Our world can be a bewildering place, especially if you've only just got here. Your head will be filled with questions, so let's explore what makes our planet and how we live on it. From land and sky to people and time, these notes can be your guide and start you on your journey. And you'll figure lots of things out for yourself. Just remember to leave notes for everyone else....

It's fall, and it's time to visit the apple orchard! Take a close look at apple trees, learn how to pick apples, and have some fun pressing apples too. Kids will experience what it's like to visit an apple orchard.