検索キーワード： 物事の仕組み

Did you use a fork today? Then you’ve used a lever! These simple machines are all around. Take a listen and discover 13 different ways we use levers.

The United States keeps its gold safe at Fort Knox. How is this done? There are fences, locks, guards, and more. Learn more about this high-security place!

Air Force One keeps the U.S. president safe while flying. Learn more about the features that protect this amazing plane. Also find out how team members protect the president as he travels on Air Force One.

How can important information and valuable items be kept safe as years pass? Many of these items are stored in underground vaults, including recordings and photos from U.S. history, important documents, and more. Locks, guards, secret passwords, and technology all play a part in the protection of the items.

Nuclear weapon bunkers keep the world's dangerous nuclear weapons safe. Guards, electronic security systems, and barriers protect the bunkers. Learn more about these high-security places!

Streaming puts a world of options at your fingertips when you’re at home and, with a smartphone or tablet, when you're on the go. Find out how streaming was invented, how it works, and what the future might hold for this part of a high-tech life.

The wheel was invented more than 5,000 years ago, and it has brought some awesome vehicles our way. But this invention isn't done giving! Take a tour of some of the most unique and fascinating vehicles around.

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!

Explore the wonders of the world and the furthest frontiers of space – and learn to build the universe’s most incredible sights with LEGO® bricks! Look inside volcanoes, travel to the deepest depths of the ocean, find out what happens inside a black hole, send a message to aliens, and much, much more! Includes more than 70 out-of-this-world LEGO models to inspire you!

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!

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.

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?

Ada wants to win a prize one day for her inventions. She has many ideas. When it’s time to clean up her blocks, Ada has a great idea to make clean-up time easier. Ada thinks to use her father’s old socks to invent a way to stay on her two feet on an icy day! Ada’s ideas to recycle old things makes her a great inventor!