Chinese Contributions to the World

1. Chinese Contributions to the World

2. Waterways .1340 the yellow river flooded and spilled into the grand canyon destroying it. 150,000 civilians and 2,000 soldiers worked successfully and built the new channels.

3. Spinning wheel • Chinese silk winders needed a machine to deal with the tough long fibers. • Answer is that the spinning wheel, a simple circular machine- easily operated by one person-for winding fibers of silk into thread.

4. Gunpowder • Gunpowder was invented in China and used to develop weapons like the cannon long before the substance was heard of in europe. • By 1259 Chinese

5. Road and relay hostels • New roads increased trade for selling rice, tea, silk, and seafood. • Roads allowed official to stay for the night during long journeys.

6. Magnetic compass • The Chinese were using the compass to coordinate at sea. • The spoon was placed at the center of the plate where it rotated and pointed south.

7. Movable-type printing • Though woodblock printing a time consuming process done by hand had been invented in China in the 18th century. • The movable typing method used reusable blocks of Chinese characters that could be moved around on the page.

8. paper money • Chinese invented paper money in the ninth century. • The idea of paper representing metal money led the Islamic money changers in the market places to develop a checking system spread all around the world.

9. Mechanical clock

10. ship • Chinese developed a new sail called fore and aft rigs. • These triangular shaped sails allowed the ship to sail into the wind.

11. abacus • Chinese invented a counting device called an abacus. • The instrument consisted of a rectangular wooden frame with parallel rods of wires, each of which has strung on it seven flattened beads, or counters.

12. Names, Date, Period • Isaiah Castro, James Mangoagui, Skyler Castillo • 10\26\07 • 7