You all know that our Earth has a magnetic field. Because of this magnetic field, very interesting things happen around our Earth. Today, let's talk about northern lights. How Earth's Magnetic Field Protects and Creates the Northern Lights There are many factors that affect the existence

We all know how a helicopter flies. The helicopter has a very large, powerful propeller. This spins and pushes the air downward. When the air pushes downward in this way, according to Newton's third law, an equal and opposite force is exerted on the helicopter. That's