26 Incredible Inventions：Everyday Wonders

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Incredible Inventions: Everyday Wonders by Thom Anthony Table of Contents Introduction page 2 Chapter 1 Lights page 4 Chapter 2 Sounds page 6 Chapter 3 Pictures page 10 Conclusion page 14 Glossary/ Index page 15 Comprehension Check page 16

Introduction Can you think of life without lights? Can you think of life without television or telephones? We did not always have all these things. Many things that we have now to help us are new. In the past, people used candles for light. candle Today lights are everywhere. Years ago, telephones were not as easy to use as they are today. Light bulbs did not make as much light. Televisions did not last for a long time. People keep finding ways to make things work better. They keep finding ways to make life easier.

Chapter 1 Lights Long ago, people used fire for light. Fire burns quickly. Its light is not very bright. In the 1870s Thomas Alva Edison made one of the first light bulbs. Soon people used light bulbs everywhere. Language DETECTIVE Clue: Bulbs is a plural noun. It names more than one person, place, or thing. Can you find three plural nouns on page 3? Evolution of Light Fire Light Candle Light Gas Light Electric Light AMAZING INVENTIONS A New Light Bulb In 1991 a light bulb that can give light for 10,000 hours was made. Thomas Alva Edison invented light bulbs and other things we use today. light bulb

Chapter 2 Sounds Before telephones were invented, people who lived far apart had to write letters. Then the first telephone was invented. Telephones needed electric cords to work. Telephones had round dials or a circle with numbers. Now you press a button or a key to call a number. cord a piece of wire that electricity travels on Today we can send a fax. A fax is a letter we send by using a telephone. AMAZING INVENTIONS The Telegraph The telegraph uses a special kind of language called the Morse code to send messages. Morse code uses dots and dashes for the letters of the alphabet. Telephones The First Telephone Rotary Telephone Touchtone Telephone Cordless Phone Fax Machine Cell Phone cord buttons keys

Long ago, people did not have tapes or CDs. They listened to music in a place where music was played. Then people found a way to record or copy sound. A machine called a phonograph played the songs. Thomas Alva Edison invented one of the first phonographs. Many people listen to music on CDs. Next, records were invented to store or hold music. A record is large, round, and flat. Records do not sound good if they get scratches. Cassette tapes were invented next. After that, CDs were invented. CDs can store a lot of music. Language DETECTIVE Clue: The word store is a homograph. Can you find another meaning for store in the dictionary? AMAZING INVENTIONS The MP3 Player The MP3 can store many hours of music.