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for measuring the strength of earthquakes -
was made by a lot of stone. -
it enabled a single person to carry a heavy lpoad and was called "the wooden ox" in Chinese. -
they where made on bamboo sticks and date back to the Shang Dynasty. -
was first used for fireworks. -
it was made by the Chinese in the 11th centaury -
was a favourite pastime in China -
was the first writing on oracle bones -
where needles poked into peoples body's