検索キーワード： 科学・テクノロジー

In 1877 a young man developed a way to reproduce sounds so they could be heard again and again. This young man, Thomas Edison, has since been heralded as one of the world's greatest inventors. This inspiring biography details the creation of Edison's favorite invention, the phonograph. Young listeners will also discover that Edison did not allow his handicap (he was hard of hearing) to slow him down.

هناك العديد من الدول التي تعمخل على تطويرلمشاريع تهدف الى استغلال القمر كمساحة للتعدين أي إن صح التعبير، ترى في القمر منجم عملاق غني بالمعادن.

Unlock the world of mind-blowing facts and embark on a journey of discovery in this book packed with wonders about science, animals, space, inventions, and more! Do you find it hard to spark curiosity in young minds without turning to screens?

Welcome, brave adventurers! Have you ever wondered what to do if you get lost in the woods? Don't worry! This book is here to help you learn how to survive with very little supplies. Whether you're on a camping trip or just exploring, knowing these survival tips can keep you safe and sound until help arrives.

Discover the amazing ways humans and AI learn without explicit instructions! In this captivating book, neuroscientist Dr. Tursun Alkam explores the power of unsupervised learning, revealing how both our brains and artificial intelligence systems can explore, discover, and find patterns without being explicitly taught.

Do you know where your clothes come from? Learn about the processes of making certain materials that are used in clothing! Guess what plant or animal that rubber boots come from? What material is made from plastic bottles? You’ll be surprised to learn how the clothes you wear everyday are manufactured!

Have you ever wanted to discover a roller coaster that is bigger or faster or scarier than any one you’ve ridden before? Follow the design activity to engineer your own, new roller coaster! Learn how different engineering elements make an exciting ride!

Have you ever flown a drone before? They can be fun but are often hard to navigate by the operator. Scientists are hoping to discover ways to improve how drones see by using dragonflies! What about the anatomy of an insects’ eye will prove helpful?

Click and his friends wish to live in their favorite tree like the friendly squirrels. They decide to build a treehouse—but first they must collect the necessary materials and learn what tools they'll need for the job! They find a hammer, saw, level and measuring tape. What safety tools with they need to build their treehouse?

What would we do without wheels? We use wheels for all kinds of things, including transportation. Learn about alternatives for transportation other than the wheel! Do you use any of these different ways of moving around?

Have you ever seen a bird nest? Birds make all kinds of different nests! Nests are made from lots of different kinds of materials and are shaped differently. Learn about the different kinds of nests that are made by different species of birds!

Have you ever wondered how buildings are created? Architects have to use lots of different shapes in order to build a structure. Many geometric shapes are needed to create building designs. Can you find the different shapes in historical landmarks from all over the world?

Bridges are engineering marvels! It takes a civil engineer, chief engineer, structural engineer and environmental engineer to build a bridge. There are different kinds that each require a special construction process to build. Learn how different bridges such as beam, suspension and arch bridge types are designed and built, as well as the construction workers needed at specific stages.

Have you ever wondered how big cities are created? Learn how small towns start with just a few houses and farms, and then grow into large cities with many roads, buses, and skyscrapers! See how cities grow and change throughout history by the growing population of people living, working and shopping among each other.

Eyes are organs that allow you to see the world! Learn about the anatomy of the eye and how it works to allow you to see. Discover how your vision is created through connections between your eye and brain. You won’t believe your eyes when you see a 3D movie! Special 3D glasses help your brain view a mixture of two different camera angles and colors from each lens. Have you ever seen a 3D movie?

Imagine taking a flight to the stars! Yo pretends to take a rocket into the sky to visit the stars–only he wonders if he will see the stars. Yo doesn’t want to crash into them if he can’t see them!

Did you know if you break a bone, the bone can repair itself? You'll need to visit the doctor to have your broken bone set in a cast, while your body is hard at work repairing the injury! The moment you fall, blood from your injury sends signals to cells to start building new bone–the process of repairing is on its way! Do you know what your body makes to create new bone?

Yo says his toy animal, polar bear, wants to know why the polar regions stay cold! Yo’s father shows him a globe of the earth! Did you know the sun doesn’t shine on the North and South Poles strong enough to keep it warm? Yo learns that because the earth is tilted, sunlight shines brightly in the middle of the earth, and dimly on the Poles. What will Yo learn when he sees a flashlight?

Have you ever wondered how a penny or dime is made? Coins are made from metal in factories called mints. First, an artist draws a picture of the coin, next clay is used to make a mold made from plastic. Then a machine engraves and designs a piece of metal–these metal pieces will be used to make stamps called dies. In the United States, there are only four factories–can you guess where?

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?