中国首先发明火药。早在唐代，中国就发明了火药。到宋代已被大量运用到军事上。元、明之际，还利用喷气原理制造了“火箭”。火药从13世纪起传到国外。

Gunpowder was invented in China. Gunpowder， invented as early as in the Tang Dynasty （618-907 A.D.), was used militarily on a large scale in the Song Dynasty （960-1279 A.D.). In the period between the Yuan Dynasty (1271-1368 A.D.) and the Ming Dynasty (1368-1644 A.D.), “rockets” were invented with the use of the fundamentals of jet. Gunpowder was introduced to other countries in the 13th century.

中国首先发明指南针。战国时期，中国已经用磁石制成了指南的仪器，古人称它为“司南”。北宋时，又发明了用天然磁石摩擦钢针制成的罗盘针，即真正的指南针，并应用于航海。13世纪指南针传到欧洲。

The compass was invented in China. As early as in the Warring States Period (450 B. C. -221 B. C. ), a magnet was used as a device that pointed to magnetic north, and this device was named “Si Nan” by the ancient Chinese. In the Northern Song Dynasty (960 A. D. -1127 A. D. ), another device was invented with a magnetic iron needle that pointed to magnetic north, and this device was later used in navigation. The compass was introduced to Europe in the 13th century.

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