The 6 fundamental human machines


The 6 ‘simple machines’ that we all use everyday:

  1. What is a lever, and what are the different classes of lever: here
  2. Wheels and axles and different combinations for going round corners: here
  3. The pulley wheel and the block and tackle (also called a pulley sometimes): here
  4. An inclined plane: here
  5. The wedge
  6. The screw


Building a class 3 lever such as a pair of tweezers


More useful mechanisms that we should know about so we can use them to help us solve bigger challenges.

  1. The universal joint – transmitting power between shafts: here
  2. Rack and pinion – steering

The universal joint



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