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TRIANGLES
There are 3 main types of triangles
scalene
no sides are the same
isosceles
2 sides are the same
equalateral
all sides are the same
Triangles are aerodynamic
Triangles are the strongest shapes
CARS
Invented by Carl Benz in 1886
they replaced horses
there are over 1 billion cars in the world
DPDT
Double Poll Double Throw
Consists of 6 terminals
used to spin motors clockwise and anti clockwise
COMPOUND GEAR TRAIN
used to achieve a greater gear ratio
They can increase torque or speed but only one at a time