検索キーワード： 物事の仕組み

Hear about some of the world's greatest gadget disasters. Find out how each gadget failed, what went wrong with its design or manufacture, and what programmers learned from their mistakes.

Hear about some of the world's biggest building blunders. Find out how each structure failed, the basic building block that was missed during construction, and what engineers learned from their mistakes.

Did you ride a bike today? Then you’ve used wheels and axles! These simple machines are all around. Take a listen and discover 13 different ways we use wheels and axles.

Searching for easy engineering projects for your makerspace? You've come to the right place! From winches and gears to bridges and marble runs, these 10-minute STEM projects will have kids making in no time!

The world can be a dangerous place. Over time, animals evolved many natural defenses to help them survive. Combat during wartime is extremely dangerous. Why not look to nature to find the best defenses for soldiers on the battlefield? Military forces have done just that for hundreds of years. From the armor of medieval knights to tomorrow's advanced camouflage, learn how military technology often mimics the traits of animals to help protect soldiers in combat. Then be sure to catch the other amazing titles in the Beasts and the Battlefield series.

Animals have played an important role in warfare throughout history. Military forces have long relied on animals' natural abilities to achieve their missions. From medieval warriors charging into combat on horseback to dolphins locating explosive mines at sea, learn about the many ways animals have helped armies find success on the battlefield. Then be sure to catch the other amazing titles in the Beasts and the Battlefield series.

In the wild, animals use teeth, claws, and other natural weapons to attack their prey. On the battlefield, soldiers need weapons to fight the enemy. Military forces have often looked to nature for inspiration to develop effective weapons and combat tactics. From the first feathered arrows to tomorrow's high-tech weaponry, learn how military technology often imitates the natural weapons of animals to help soldiers succeed in combat. Then be sure to catch the other amazing titles in the Beasts and the Battlefield series.

Beep! Beep! Here comes a dump truck! Young students can learn basic facts about these load-bearing machines through simple text to support listeners who are just starting out.

Bridges take cars, trains, and people across rivers, lakes, and canyons. This introductory title covers the materials used in bridge construction, the types of bridges, and the scientific concepts that make bridges work.

Elephant memory, honeybee communication, octopus intelligence, monarch butterfly migration, and dolphin names! Volume one includes a fact, lesson, and story about each of these fascinating subjects that your kids will love! Not just a list of facts, this book includes heartwarming, educational stories about our animal friends on topics like friendship, bravery, and the importance of helping others in our big, beautiful world. The quick chapters are perfect for car rides, travel, or bedtime!

In January 1776, George Washington had a problem: the British army controlled the city of Boston. The colonial army needed to force the British to leave. But how? Washington had a solution: ask his engineer Rufus Putnam to solve the problem. They needed to take control of the high ground, Dorchester Heights, just south of Boston. They could place cannons there to bombard the British army.

From the stethoscope to the clinical trial, this exploration of scientific inquiry celebrates the greatest inventions in medicine. Get to know the physicians, scientists, and other researchers responsible for these breakthroughs in medicine, and explore the ups, the downs, and the eureka moments that are science in action.

From the first immunosuppressant drugs to the first successful heart transplant, this exploration of scientific inquiry celebrates the greatest developments to date in transplant medicine. Get to know the physicians, scientists, and other researchers responsible for these breakthroughs in medicine.

From laboratory robots to robotic prosthetics, this exploration of scientific inquiry celebrates the greatest developments to date in medical robotics. Get to know the physicians, scientists, and other researchers responsible for these breakthroughs in medicine, and explore the ups, the downs, and the eureka moments that are science in action.

From machine learning to virtual surgery practice, this exploration of scientific inquiry celebrates the greatest developments to date in medical artificial intelligence. Get to know the physicians, scientists, and other researchers responsible for these breakthroughs in medicine, and explore the ups, the downs, and the eureka moments that are science in action.

This book is about waterdrops and all the different things they create. Every lake starts with one waterdrop at a time. Keep adding waterdrops to any area and it will form a body of water of some kind. A creek, a stream, a river, a lake or even an ocean. They are all created one waterdrop at a time.

Peter Lustig hat mal wieder eine "bahnbrechende Erfindung" gemacht: Einen vollautomatischen Rauchabsauger hat er entwickelt, der jedes Feuer im Nu unschädlich machen soll. Um das Gerät zu testen, sucht Peter die Feuerwache Bärstadt auf – und stolpert dabei prompt in einen richtigen Einsatz. Hautnah erlebt er, wie Mensch und Technik bei der Feuerwehr zusammenspielen, um zu retten, zu löschen und zu schützen. Und auch Peter selbst soll dabei noch eine große Rolle spielen.

When we think of accidents or mistakes, we automatically think of failure–that you need to throw everything out and start over from scratch, or maybe just give up. Well, these inventors and creators proved that notion wrong!

Estas historias te demostrarán que los errores y los fracasos no tienen por qué significar el fin de tu sueño. De hecho, podrían ser sólo el principio. Inspírate para convertir tus errores en éxitos y encuentra el potencial que hay detrás de cada accidente.

Warum müssen Haie nicht zum Zahnarzt? Warum können Flugzeuge fliegen? Wo ist der Wind, wenn er nicht bläst? Um Fragen sind Kinder fraglos nie verlegen. Eltern um Antworten dagegen oft schon. Die sprichwörtlichen Löcher, die Kinder Mamas und Papas in den Bauch fragen – hier werden sie mit klugen und lustigen Geschichten gestopft. Was beispielsweise die Haie betrifft: Deren Zähne wachsen nach. Wieder was gelernt, oder?