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