A compass fits this definition.
A navigational tool with a needle is a compass because it helps you to navigate which is cosidered as a tool. A compass has a needle inside to point which way is north. There is your answer :)
Francis Drake
The needle inside the compass aligns with the Earth's magnetic field, pointing towards the magnetic north pole. By using this reference point, you can determine your direction relative to north, south, east, and west. This is a simple and reliable tool for navigation in outdoor activities or when traveling.
a needle used for clay
A compass needs a magnetic needle that aligns with the Earth's magnetic field to indicate the cardinal directions (north, south, east, west). Additionally, a compass should be used away from magnetic interference sources to ensure accurate navigation readings. Familiarity with the compass and how to interpret its readings is also necessary for effective navigation.
When you sail with a magnetized needle, it will point towards the magnetic north pole. This is because the needle aligns itself with the Earth's magnetic field, which is used for navigation purposes.
A compass fits this definition.
Compass
they envented a navigation tool called the magnetic compass.
they envented a navigation tool called the magnetic compass.
navigation
I think you're thinking of a compass.