Pulleys: By Alexander Kuehn

A pulley is something that reduces force in order to lift an object.    An example would be if you need water from a well and you pull one end while the other would bring you a bucket of water.  We use pulleys all around us.  Flags are raised and lowered using a pulley.  Shoelaces are a type of pulley system.  Crains are pulleys and work with one end that raises and lowers while helping to pick up heavy objects.  I think pulleys are helpful with everyday things from tying shoes to picking up heavy objects.  This simple machine gets the job done!