Gears (Chapter 2)

Chapter 2 talks about gears(hence the title). It talks about gear ratio which is how many rotations one gear does compared to the other gear. There are different kinds of gears, normal ones, bevel gears, etc. The bevel gear can change the direction of the movement 90 degrees. There is also something called the pulley system, where you use a band that moves two gears, this is useful when the gears a far apart from each other. By reading this chapter you find that lego gears are really similar to real life gears, there are a few differences though, real gears are not made out of plastic.