Mangla Dam
A big dam sits on a river. It holds back much water. This water helps plants grow. It also makes power for homes. The dam is very large. Do you like to see big dams?
Early Reader · Change the reading level on the articleTechnology articles — Page 54
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 54 of 86
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Mangonel
A mangonel is a big machine. It throws heavy things. Many people pull ropes to make it work. It was made in China long ago. It helps people stay safe. Can you imagine pulling a rope that big?
Early Reader · Change the reading level on the articleManhattan Bridge
The Manhattan Bridge is very big. It goes over the water. Cars and trains go on it. It helps people get to work. It is a great sight! Do you like big bridges?
Early Reader · Change the reading level on the articleManhole
A manhole is a hole in the ground. It helps workers reach pipes below. It can hold water or wires. These holes stay safe with a cover. We see them in the street. Can you spot one near you?
Early Reader · Change the reading level on the articleMan-portable air-defense system
Some small tools can hit planes. People carry them on their shoulders. They help keep people safe from planes. These tools can find heat from engines. They fly up into the sky. Can you see a plane?
Early Reader · Change the reading level on the articleManufacturing engineering
People make things in big shops. These shops use tools and machines. Some shops use robots to help. Robots can do jobs very fast. This helps us make many things. We can have cars and toys. Do you like new things?
Early Reader · Change the reading level on the articleMarc Andreessen
Marc is a man who works with computers. He helped make a tool for the web. This tool lets people see pictures online. It helped many people use the web. He still helps new companies grow. Do you like to use computers?
Early Reader · Change the reading level on the articleMarcel Bezençon
Marcel Bezençon was a man from Switzerland. He worked with radio and news. He had a big idea. He helped start a song contest. Many people love this show. Do you like to hear songs?
Early Reader · Change the reading level on the articleMarcel Dassault
Marcel was a man who built planes. He worked hard to make them fly. He even helped lead his country. He went through many hard times. But he never gave up. Do you like planes?
Early Reader · Change the reading level on the articleMarcus Goldman
Marcus Goldman was a man who helped with money. He moved to a new land. He started a big business. His business is still here today. It helps many people. Do you like to help others?
Early Reader · Change the reading level on the articleMargaret E. Knight
Margaret Knight was a great inventor. She made a machine for paper bags. These bags could stand up straight. They helped people carry food. She made many new things. Do you like to build things?
Early Reader · Change the reading level on the articleMargaret Hamilton (software engineer)
Margaret Hamilton worked with computers. She helped send people to the Moon. She wrote code to help the ship fly. Her work kept the astronauts safe. She is a hero for science. Do you like computers?
Early Reader · Change the reading level on the articleMarie Claire
Marie Claire is a magazine. It is from France. It talks about clothes and style. It comes out every month. Many people read it. Do you like looking at magazines?
Early Reader · Change the reading level on the articleMarie Marvingt
Marie was a very brave woman. She loved to do many things. She could swim very far. She could climb big mountains. She even flew in the sky! Marie helped sick people in planes. She was a hero. Do you like to be brave?
Early Reader · Change the reading level on the articleMarina
A marina is a place for boats. It is by the sea or a river. Small boats stay there to rest. You can find food and shops there. It is a fun place to visit. Do you like boats?
Early Reader · Change the reading level on the articleMarine chronometer
A ship needs a special clock. This clock tells the time very well. It helps sailors find their way. It keeps the ship safe at sea. Can you imagine a clock on a boat?
Early Reader · Change the reading level on the articleMarine engineering
People build big ships. They make things that float. They work on engines too. This helps ships move in the sea. It helps us travel far. Do you like big boats?
Early Reader · Change the reading level on the articleMarissa Mayer
Marissa Mayer works with computers. She helped make Google. She also led a big company called Yahoo. She loves to use smart tools to help people. Do you like using computers too?
Early Reader · Change the reading level on the articleMaritime flag
Ships fly flags on the water. These flags show where a ship is from. They help people know the ship's home. Flags can also show who is in charge. They are very important at sea. Do you like flags?
Early Reader · Change the reading level on the articleMaritime passenger terminal
A terminal is a place at the water. People go there to get on big ships. Some places also help cars get on ships. It can be a small spot or a big one. It helps us travel by sea. Have you ever been on a ship?
Early Reader · Change the reading level on the articleMaritime patrol aircraft
Some planes fly over the sea. They look for ships. They can help find people in the water. This helps keep us safe. Do you like planes?
Early Reader · Change the reading level on the articleMarker pen
A marker is a pen. It has colorful ink inside. The tip is soft. A cap keeps the ink wet. You can use it to draw. It helps us make art. Do you like to color?
Early Reader · Change the reading level on the articleMarket segmentation
Stores sell things to many people. They can group people by what they like. Some groups want different things. This helps stores pick the best items. It makes shopping fun for you. Do you like to shop?
Early Reader · Change the reading level on the articleMark Zuckerberg
Mark is a man who makes computer tools. He helped make Facebook. It helps people talk online. He used his money to help others. He is very good with computers. Do you like to use computers too?
Early Reader · Change the reading level on the articleMarshall Field
Marshall Field ran big stores. His stores sold many things. He helped build a big museum. He also helped a school. He gave much money to help people. Do you like to visit museums?
Early Reader · Change the reading level on the articleMars Inc.
Mars makes many treats. They make candy for you. They also make food for pets. This helps many animals. It is a very big company. Do you like candy?
Early Reader · Change the reading level on the articleMartha Rountree
Martha was a news worker. She made a big show on TV. She asked people hard questions. Many people watched her show. She was very smart. Do you like to watch the news?
Early Reader · Change the reading level on the articleMartha Stewart
Martha Stewart is a famous woman. She writes books about the home. She has her own TV shows. She also has a big company. Martha had some hard times. But she kept working hard. Do you like to cook or sew?
Early Reader · Change the reading level on the articleMartin Agronsky
Martin was a man who told news. He traveled to many far places. He spoke on the radio and TV. He told people what was happening. Martin worked for a long time. He was a very good reporter. Do you like to hear the news?
Early Reader · Change the reading level on the articleMartin Baron
Martin Baron tells big stories. He was a leader for news papers. He helped find the truth. His work helps us know the world. He worked for many years. Do you like to read the news?
Early Reader · Change the reading level on the articleMartin Bashir
Martin Bashir was a man on TV. He talked to many people on screen. He once met a famous princess. He was not honest to meet her. This was not a good thing to do. Do you think being honest is important?
Early Reader · Change the reading level on the articleMarvin Minsky
Marvin Minsky was a smart man. He helped make computers think. He worked with many new machines. This work helps us today. He was a great teacher. Do you like robots?
Early Reader · Change the reading level on the articleMary Barra
Mary Barra leads a big car company. She helps make cars for us. She worked with cars when she was young. Now she is a very powerful leader. She wants to make cars that run on power from a plug. Do you like cars?
Early Reader · Change the reading level on the articleMary Kay Ash
Mary Kay Ash started a big business. She sold things to help women. She worked very hard. Her business grew in many lands. She helped many people too. Do you want to be a boss one day?
Early Reader · Change the reading level on the articleMary Kenneth Keller
Mary was a smart teacher. She loved to learn about computers. She was one of the first women to do this. She helped many people learn how to use them. This helped us all learn more. Do you like computers?
Early Reader · Change the reading level on the articleMasaru Ibuka
Masaru Ibuka made many tools. He helped start a big company called Sony. He liked to listen to music. He wanted a small music player. This helped make the Walkman. Do you like music too?
Early Reader · Change the reading level on the articleMasayoshi Son
Masayoshi Son is a man who helps businesses. He gives money to help new ideas grow. He works with many tools and computers. This helps people all over the world. He works very hard every day. Do you like to build new…
Early Reader · Change the reading level on the articleMassachusetts Bay Transportation Authority
Many people use the T to travel. It has trains and buses. Some trains go under the ground. Other buses go on the road. This helps people get to work. Do you like to ride the bus?
Early Reader · Change the reading level on the articleMass communication
One person can send news to many people. They use tools like the radio. They can use the internet, too. This helps us learn things fast. It can reach people far away. We see it every day. Do you watch the news?
Early Reader · Change the reading level on the articleMassimo Moratti
Massimo Moratti is a man from Italy. He works with oil and power. He also owned a big soccer team. He helped his team win many games. He even helped the United Nations. Do you like soccer?
Early Reader · Change the reading level on the articleMass Rapid Transit (Singapore)
Trains help people move in Singapore. They run on tracks all over the island. Some tracks are high up. Some are deep under the ground. These trains help us get to many places. It is a fast way to travel. Do you like…
Early Reader · Change the reading level on the articleMastercard
Mastercard helps people buy things. It uses special cards. You can use them at stores. This helps you pay for food. It is a big company. Do you use a card to pay?
Early Reader · Change the reading level on the articleMast (sailing)
A mast is a tall pole. It stands up on a boat. It holds big sails. The sails help the boat move. It helps us see far away. Do you like big boats?
Early Reader · Change the reading level on the articleMatch
A match helps us make fire. It is a small stick. One end has a special tip. You rub the tip on a rough side. This makes a tiny flame. It helps us stay warm. Do you see the light?
Early Reader · Change the reading level on the articleMatchlock
Long ago, people used special guns. These guns used a burning string. A person pulled a lever. This made the fire touch the powder. Then the gun would fire. It was a clever tool. Can you imagine a glowing string?
Early Reader · Change the reading level on the articleMatthew Boulton
Matthew Boulton made many things. He made shiny silver items. He also made new coins. His work helped many people. He was a great inventor. Do you like making things?
Early Reader · Change the reading level on the articleMatt Lauer
Matt Lauer was on TV. He told the news. He talked to many people. He worked at a place called NBC. He had to leave his job. This was because he was not kind to others. Do you watch the news?
Early Reader · Change the reading level on the articleMattock
A mattock is a tool for digging. It has a long handle. It helps you chop the ground. You can use it to plant seeds. It makes hard dirt easy to move. It is a very helpful tool. Do you like to dig in the dirt?
Early Reader · Change the reading level on the article