検索キーワード： 科学・テクノロジー

How did forgetting to wash a jar make cars safer? A scientist named Édouard Bénédictus accidentally dropped a plastic-coated flask that did not break. This invention was tested and engineered to help today's windshields protect drivers better.

Will an orange float or sink in water? Are heavier objects able to float in water versus lighter objects? Learn about the density of materials and how water affects the objects! Make your own scientific discoveries and expand your knowledge by conducting your own experiments with water.

Learn about how the body processes food by following Joe's pizza lunch—from the plate to his mouth to his stomach and beyond. The nutrients from food are absorbed in the small intestine, which are delivered to rest of the body.

Have you ever wondered where glasses came from? This book takes a fun look at the invention of glasses starting with the Greeks and Romans. Then it looks at attempts by the Spanish, Chinese, French, and even inventor Ben Franklin to improve the design.

Follow along this brief history of the pursuit of perpetual motion machines and how this endeavor led to the laws of physics we have today. From Robert Park's generator-rigged bicycle, to Robert Fludd's self-running bicycle, to the steam engines of the 19th century, these stories offer a peek into some of mankind's successes and failures when it comes to the exploration of science and advancement.

Your skin does a lot to make sure you are healthy and feeling good. It can keep you warm on a cold day, and cool on a hot day. It's tough and helps protect you from the sun. Its ridges help you grip things. Let's face it, your skin has you covered.

Where do all the metals on earth come from? They were all made by stars! In this science story, you'll discover how the fusion of atoms in dying stars in space creates enough heat and energy to make metals.

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.

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.

If you've ever wanted to blast off into space, you're about to find out everything you need to become an astronaut - and the answers to all the big questions like, how do you wee in space? What can you see from the International Space Station? And how could we build a colony on Mars? Your mission, if you choose to accept, is to pull on your spacesuit and join your guide, real astronaut Tim Peake (and a host of expert STEM characters) in this fascinating adventure through space, time and the diary of one truly incredible space adventure.

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.

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.

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.