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The Invention of the Bicycle: the earliest bicycle was a wooden scooter-like contraption called a celerifere.
The safety pin was invented by Walter Hunt in 1849. He patented the safety pin on April 10, 1849.
Batteries: A battery is a device that converts chemical energy into electrical energy.
The Earth is divided into 24 time zones so that everyone in the world can be on roughly similar schedules.
Color in this picture of Hedy Lamarr (1914-2000), actress and inventor.
Color in this picture of Thomas Edison (1847-1931), perhaps the most famous inventor of the early 20th century.
Inventions and Inventors: Food Theme Page at EnchantedLearning.com.
Robert Wilhelm Bunsen invented the Bunsen burner and other devices. He co-discovered the elements Rubidium and Cesium.
The caravel (or 'carvel') was a light sailing ship developed by the Portuguese in the late 1400s.
Rubric for Invention/Inventor Reports: assessing a student's animal report.
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