What were two effects of the invention of the compass on china during the middle ages? 1. it enabled the chinese people to navigate the seas and participate in sea trade. 2. it inspired china to expand its army and conquer more territory. 3. it encouraged the chinese people to establish friendly ties with foreign people. 4. it showed china the benefits of making new and powerful allies. 5. it the chinese people spread their culture to distant parts of the world.

1. It enabled the Chinese people to navigate the seas and participate in sea trade.

2. It inspired China to expand its army and conquer more territory.

1. It enabled the Chinese people to navigate the seas and participate in sea trade.

2. It inspired China to expand its army and conquer more territory.

Explanation:

The Compass was invented in China around the ninth century in order to determine the directions in the open sea, and initially it consisted of a magnetic needle floating in a vessel full of water. Later it was improved to reduce its size and facilitate its use, changing the water vessel by a rotary axis, and adding a "rose of the winds" that serves as a guide to calculate directions. Currently the compasses have received small improvements that, although they do not change their operating system, make the measurements easier to perform. Among these improvements are lighting systems for taking data in dark environments, and optical systems for measurements in which the references are objects located in the distance.

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