Electric power transmission
Power travels on long wires. These wires move energy to you. They help turn on your lights. This helps our whole world. It is like a big web. Can you see the wires?
Early Reader · Change the reading level on the articleTechnology articles — Page 6
Explore inventions, engineering, computing and the tools people build to solve problems. Choose an article below; its reading controls let you move between the available levels.
4,107 public articles · Page 6 of 86
Electron microscope
This tool is a special microscope. It uses tiny bits to see things. These bits are much smaller than light. This helps us see very small things. It shows us things we cannot see. Can you imagine seeing something so…
Early Reader · Change the reading level on the articleElevator
An elevator moves you up and down. It carries people in a small room. It can go to high floors. This helps us reach the top. It is a very cool machine. Do you like to ride in one?
Early Reader · Change the reading level on the articleEli Whitney
Eli Whitney was a smart man. He made a new machine. It helped clean cotton. It was a big help for farms. This machine changed many things. Do you like to build things?
Early Reader · Change the reading level on the articleElon Musk
Elon Musk is a businessman. He makes many things. He helps make cars and rockets. These things help us move. He is very good at business. Do you like cars or rockets?
Early Reader · Change the reading level on the articleYou can send notes on a screen. These notes move through the air. They go from one computer to another. This helps us talk to friends. It is very fast! Do you like to send notes?
Early Reader · Change the reading level on the articleEmile Berliner
Emile Berliner was an inventor. He made a way to play music. He made flat discs for music. This helps us hear songs. He also worked on flying machines. Do you like to listen to music?
Early Reader · Change the reading level on the articleEmpire State Building
The Empire State Building is very tall. It is in New York City. It has many floors. You can go to the top to see. It has bright lights at night. Do you want to see it?
Early Reader · Change the reading level on the articleEncryption
We use secret codes to hide things. These codes hide our words. They keep our secrets safe. This helps us use the internet. It is like a locked box. Do you like secrets?
Early Reader · Change the reading level on the articleEncyclopédie
A big book shared many facts. It helped people learn new things. Many smart people wrote for it. It helped change how people think. This book was very special. Do you like to learn new things?
Early Reader · Change the reading level on the articleEnergy industry
We use power for many things. It helps us drive cars. It makes our lights turn on. It can come from the sun or wind. This helps our world stay clean. Do you use power today?
Early Reader · Change the reading level on the articleENIAC
ENIAC was a very big computer. It was much faster than old tools. It helped people do hard math. It was a giant brain. Can you imagine a computer that big?
Early Reader · Change the reading level on the articleEnzo Ferrari
Enzo Ferrari loved fast cars. He built a famous car team. His cars won many big races. People all over the world know his name. He made cars that are very special. Do you like fast cars?
Early Reader · Change the reading level on the articleErie Canal
The Erie Canal is a long path of water. It helps boats move things. Boats carry food and many goods. It helps people travel far. It was a very big job to build. Do you like to ride in a boat?
Early Reader · Change the reading level on the articleError detection and correction
Sometimes, messages get messy. They can change as they move. This can make things hard to read. We can add extra bits to fix them. This helps us get the right news. Can you find a mistake?
Early Reader · Change the reading level on the articleEstée Lauder (businesswoman)
Estée Lauder sold beauty products. She made creams and scents. She worked very hard to sell them. This helped her start a big company. She was a great leader. Do you like to sell things?
Early Reader · Change the reading level on the articleEthernet
Wires help computers talk. They send information fast. This helps us use the internet. It works in our homes. It is very helpful. Do you use a computer?
Early Reader · Change the reading level on the articleExtrusion
We can make shapes by pushing things. We push soft stuff through a hole. This makes long pieces. It can make tubes or bars. It even makes food! Can you think of a shape to make?
Early Reader · Change the reading level on the articleFacebook is a way to talk online. You can see photos of friends. You can also share your own stories. It helps people stay close. Do you like to share photos?
Early Reader · Change the reading level on the articleFactory
A factory is a big place. It uses machines to make things. It can make many toys or cars. Most things we use come from a factory. It helps us get what we need. Do you see things from a factory?
Early Reader · Change the reading level on the articleFastener
Things can stay together with tools. These tools hold parts in place. They can hold a box shut. They can hold a chair together. They help us build big things. We use them every day. Can you find one in your house?
Early Reader · Change the reading level on the articleFatigue (material)
Things can get tired. Metal can get tired too. It gets tiny cracks. These cracks grow and grow. Then the metal might break. It happens when we use it a lot. Can you think of something that gets tired?
Early Reader · Change the reading level on the articleFence
A fence marks a line. It can be made of wood or wire. Fences keep animals in a field. They can also keep people safe. Fences help us know where land starts. Do you see a fence near you?
Early Reader · Change the reading level on the articleFiber
Fibers are very long and thin. They can come from plants or animals. Some are made by people in a lab. We use them to make clothes. They help make things strong. Do you wear fibers every day?
Early Reader · Change the reading level on the articleFighter aircraft
Fast planes fly in the sky. They are built for combat. These planes go very fast. They help keep the air safe. They are very cool. Do you like fast planes?
Early Reader · Change the reading level on the articleFile system
A computer has many files. A file system keeps them in order. It works like a folder. This helps you find your work. It keeps your things safe too. Do you have files on a computer?
Early Reader · Change the reading level on the articleFilling station
A filling station helps cars. It sells fuel for cars to go. The fuel is kept in big tanks underground. You can buy food there too. It is a helpful place. Have you seen one?
Early Reader · Change the reading level on the articleFilter (signal processing)
A filter helps us clean things. It takes away the parts we do not want. It can help with sound or pictures. This makes things look or sound better. It is very helpful for us. Do you use filters too?
Early Reader · Change the reading level on the articleFishing industry
People catch fish from the sea. Some people catch fish for food. Others catch fish for fun. We get fish from the water to eat. It helps many people live. Do you like to eat fish?
Early Reader · Change the reading level on the articleFishing vessel
Some boats are made to catch fish. They go on lakes or the sea. Long ago, people used wood to build them. Now, many boats use steel. These boats help us get food to eat. Do you like to fish?
Early Reader · Change the reading level on the articleFixed-wing aircraft
Some things can fly in the sky. They use wings to stay up. Kites use the wind to fly. Big planes use engines to fly. This helps people travel far. Do you like to see things fly?
Early Reader · Change the reading level on the articleFlat-panel display
Flat screens show us pictures. They are thin and light. You see them on phones. They are also on big TVs. These screens help us see things. Do you like watching shows on a screen?
Early Reader · Change the reading level on the articleFlood management
Sometimes too much water comes at once. This can cause a big flood. People build walls to stop it. We can also use plants to soak it up. This keeps our homes safe. Does your town have walls for water?
Early Reader · Change the reading level on the articleFloor
A floor is what you walk on. It can be made of wood. It can be made of stone. It stays under your feet. Floors help keep us safe. Do you like your floor?
Early Reader · Change the reading level on the articleFood industry
Many people work to make food. They grow plants and raise animals. They make food for us to eat. This helps us stay strong. It is a big job. Do you like to eat yummy food?
Early Reader · Change the reading level on the articleFord Motor Company
Ford makes many cars. They build cars for people to drive. Henry Ford started the company. It is a very big company. It helps us get around. Do you like cars?
Early Reader · Change the reading level on the articleForging
People shape metal with hammers. They heat the metal first. Then they hit it hard. This makes the metal a new shape. It can make tools or parts for cars. It is fun to watch. Do you like making things?
Early Reader · Change the reading level on the articleFoundation (engineering)
A foundation holds a building up. It connects the house to the ground. It helps the building stay still. This keeps the walls straight. It stops the house from sinking. It is very important. Do you see any big buildings?
Early Reader · Change the reading level on the articleFour-stroke engine
An engine helps cars move. It uses air and fuel. It makes a small pop. This pop pushes a part down. Then it pushes old air out. This makes the wheels turn. Can you hear a car go?
Early Reader · Change the reading level on the articleFreight transport
Things move from place to place. Big ships carry lots of goods. Trucks and trains move things too. Air planes are very fast. This helps us get what we need. Do you like to see big ships?
Early Reader · Change the reading level on the articleFunctional programming
Computers use special rules to work. These rules use small parts to build big ones. Each part does one job very well. This helps people write good code. It can help computers work fast. Do you like to build things…
Early Reader · Change the reading level on the articleFuse (electrical)
A fuse keeps us safe. It has a tiny wire inside. If too much power flows, the wire melts. This stops the power. Then, we must use a new one. Do you want to learn more?
Early Reader · Change the reading level on the articleGain (electronics)
Some tools make signals bigger. They take a small signal. Then they add energy. Now the signal is strong. This helps us hear things. It helps us see things. Can you think of a loud sound?
Early Reader · Change the reading level on the articleGalley
A galley is a long ship. It uses many oars to move. People row the oars to go fast. This helps when there is no wind. It can carry goods or soldiers. Do you like big ships?
Early Reader · Change the reading level on the articleGas-turbine engine
A gas turbine is a big engine. It uses air to make power. It can help planes fly fast. It can also help ships move. This engine helps us do many things. Do you like fast planes?
Early Reader · Change the reading level on the articleGazelle
The Gazelle is a big van. It can carry many things. It helps people move stuff. It is very popular in Russia. It can even be a bus. Do you like big vans?
Early Reader · Change the reading level on the articleGear
A gear is a wheel with teeth. These teeth lock together. They help parts turn. This can make a car go. Gears help machines work. Do you see gears in your toys?
Early Reader · Change the reading level on the articleGeneral Electric
A big company was named GE. It made many things. It made lights and engines. It also made tools for planes. GE helped people for a long time. Can you find a light at home?
Early Reader · Change the reading level on the article