The steam engine was developed during the Industrial Revolution, not the medieval period.

The astrolabe was primarily used by sailors to determine their latitude and longitude at sea.

The invention of gunpowder led to the development of cannons and other firearms, which revolutionized warfare.

The printing press allowed for the mass production of books and manuscripts, making knowledge more accessible.

The three-field system allowed farmers to rotate crops, which improved soil fertility and increased crop yields.

The compass was used to determine the direction of magnetic north, which aided navigation.

The postal system allowed for the exchange of letters and goods, facilitating trade and communication.

The heavy plow was designed to break up hard soil, making it suitable for cultivation.

The pendulum clock was more accurate than previous timekeeping devices, revolutionizing clockmaking.

The horse collar allowed horses to pull heavier loads more efficiently.

The sewer system helped to remove waste and improve sanitation in urban areas.

Windmills were primarily used to grind grain into flour.

The crane was used to lift heavy objects during construction.

The astrolabe was primarily used to determine the latitude of a location.