検索キーワード： 科学・テクノロジー

Aluminum was once more valuable than gold. A breakthrough in refining aluminum from rock transformed it from rare matter to sandwich wrapper. In this science story, you'll learn how two chemists, Charles Hall and Paul Héroult, solved the problem.

Can you imagine visiting a doctor's office for an illness or injury, but getting treated by a robot instead? According to some researchers, this could be the reality in the not too distant future. Ongoing research into artificial intelligence and its use in medicine might someday produce robots that will work alongside human doctors and nurses to deliver the best health care possible.

Inventing is all about ideas—ideas for making products better or creating new ones. To put these ideas into action, young inventors need tools for tinkering. Find out how to put together your own inventor's workshop with simple tools and common household objects.

If you want to know what's going on, you check the news. But where does the news come from? Where do the reporters get their stories? Reporters ask five basic questions during an interview to gather all the facts and follow a few rules to keep the news truthful and fair.

Over time, cultures from around the world have given us many different myths about our home galaxy. When you look up at the sky at night, what stories would you tell about what you see?

Plastic was once considered the material of the future, but now it has become a nuisance that results in too much trash for the planet to handle. Learn about the durability and longevity of this 19th-century invention and hear recycling ideas from a chemist who hopes to salvage plastic's reputation.

In Colonial America, many people owned two books: a bible and Poor Richard's Almanack, one of Ben Franklin's many inventions. Franklin included calendars, tidal charts, and riddles in his famous publication.

Bees pollinate the flowers of the plants we eat. Without pollination, plants can't grow fruits and seeds. Which foods would you miss if we didn't have honeybees? So next time you're eating a meal, stop and thank the bees for their hard work!

Our sun is great at shining down light and heat on earth, but was the sun always that bright? With the help of gravity, the sun is eventually able to produce enough energy to give off light. Our sun has kept this up for four billion years and will keep shining for another five billion years!

The Bakeys company uses a simple recipe to make edible spoons in the hopes of cutting down on plastic trash.

Some everyday problems can be solved using a series of steps called the Engineering Design Process.

Nos preparamos en casa para enfrentarnos a desastres naturales y emergencias climáticas. Si se acercan vientos fuertes, inundaciones y tormentas de nieve podemos quedarnos (resistir) o irnos (evacuar). ¿Pero qué pasas cuando los zoológicos, acuarios o santuarios están en el camino de la tormenta? ¿Cómo se prepara el personal del zoológico para proteger a los animales? ¿Quién puede ir a ayudarles?

Just like human families, animal families come in all shapes and sizes. Many fathers in the wild have unusual and unselfish roles in the rearing of their offspring. While some animal fathers may never meet or know their offspring, there are some that protect and shelter their children. Others feed or teach their young. Let’s learn more about each of these Wild Fathers and their important duties.

What is needed to create fire? Learn about the science behind fire and how fuel, heat, and oxygen all work together to create flames.

What links seaweed, forests and bananas? They are all SUPERHERO PLANTS! Explore the amazing plants that will help us save the world with CHRIS PACKHAM CBE, one of the UK’s leading naturalists and an award-winning conservationist. Discover some incredible plants and the amazing jobs they do – from supporting wildlife and providing food, materials for clothing or for building to inspiring inventions and new technology, and so much more!

Named for the god of war because of its blood-red color, Mars is the second-smallest planet in our solar system. Explore its cold canyons, ice caps, and more in this book about Mars.

If a black hole is not a hole, then what is it? Find out what black holes are, what causes them, and how scientists first discovered them. Learn how astronomers find black holes, get to know our nearest black-hole neighbor, and take a journey that will literally s-t-r-e-t-c-h the mind.

What would you do if you found an alligator in your garage? Or if you spotted a mountain lion downtown? In cities and suburbs around the world, wild creatures are showing up where we least expect them. Not all of them arrive by accident, and some are here to stay. As the human population tops seven billion, animals are running out of space. Their natural habitats are surrounded - and sometimes even replaced - by highways, shopping centers, office parks, and subdivisions. The result? A wildlife invasion of our urban neighborhoods.

What is a volcano? Kids will learn about the three main types of volcanoes: cinder cone, shield volcanoes, and composite volcanoes, where volcanoes are found, and how scientists use warning signs to predict when a volcano will erupt. Amazing sound effects and fun facts will encourage kids to learn more about the Earth, volcanoes, and the exciting job of a volcanologist.

People have always liked to know what's going on in the outside world. Today we can instantly access the news through the Internet. But how did people get the news before cell phones and TV? From ancient Rome to newspapers and telegraph machines, this story takes a brief look at how people have gotten the news throughout history.