Modern Navigation Tools: How We Navigate the World

1.What Is a Magnetic Compass? How Does It Work?

• A magnetic compass is a device that is used to identify cardinal directions based on the deflections in the tiny magnetic needle.
• The needle of a magnetic compass is a small needle that always points in the north direction.
• When placed near a magnet, the needle of the magnet would change its direction due to the influence of the magnet and hence would not point in the correct direction.

2.What Is the Use of an Air Traffic Control Tower in an Airport?

• The Air traffic control towers are equipped with a system called RADAR.
• Like traffic police guiding the car traffic on the roads, this tower navigates the air traffic.
• The arrival and departure of aeroplanes on the airstrip are monitored and instructions are given to the pilots whenever required. s