In 2005 over 2,000 desalination plants with a capacity of more than 100m3/day had been installed or contracted in every state in the U.S. with a total capacity of more than 6 million m3/day. Only 7% of that capacity was for seawater desalination, while 51% used brackish water and 26% used river water as water source.
Find out about the lever, one of the most basic forms of a machine, which helps lift heavy objects with much less effort, through this fun and animated learning module. Also learn about a variety of levers from this very same module. The lever is one of the most basic forms of a machine. Levers help us lift loads with lesser effort. Even though this looks simple there are many things going on in order to lift the object easily. A lever can be described as a long rigid body with a fulcrum along its length.
Define lever, and explain how a lever operating at a mechanical advantage differs from one operating at a mechanical disadvantage. Name the three types of lever systems and indicate the arrangement of effort, fulcrum, and load in each. Also note the advantages of each type of lever system. Check your understanding