Who Discovered Magnets?

• Magnets were discovered more than two thousand years ago.

• They were discovered by a Turkish man named Magnes.

• He was walking in the mountains when some metal in his sandals stuck to a rock and magnets were discovered.

How do magnets work

• Magnets have two poles a north and south. ( Poles are where the magnetic force are the strongest.)

• When poles are the same magnets repel.• When the poles are different magnets

attract.

What do you need to know to make a maglev vehicle.

Aerodynamic Properties of Shapes

Wedge - A good aerodynamic shape because of it’s long gradual slope. Which allows the air to travel over the surface easily.

Rectangle - A very bad aerodynamic shape because of it’s high flat side. Which blocks the air from traveling around the surface.

Aerodynamic Properties of Shapes

Sphere - A very good aerodynamic shape because of it symmetrical shape. Which allows air to flow over it’s surface with very little disruption to the air stream.

• A combination of basic shapes will yield the best A combination of basic shapes will yield the best results. results.

Modes of Propulsion

Sails

• One of the oldest modes of propulsion.

• A sail stops air from moving around it and is pushed by the wind.

Motors and Propellers

• The propeller pushes air causing a force called thrust which can either push or pull a vehicle.

Good Luck