Appliances

• Appliance Troubleshooting
• Appliance Parts
• New Appliance Research
• Appliance Recalls
• Appliance Repair Videos
• Appliance Problem Sounds
• Appliance Repair Manuals
• Appliance Repair Costs
• Top 11 Most Common Appliance Problems

Brand Info

• Who Made What?
• Appliance Product Manuals

Electricity

• Electricity 101
• Electricity 201
• Understanding Wire Diagrams
• How To Use Test Equipment
• Electrical Parts

Physics

• Dryers
• Microwaves
• Refrigerators

Mechanics

• Mechanical Parts
• Dryer Parts
• Energy Types

Levers

The Law of the Lever

A lever is one of the simplest mechanical devices. 

A lever consists of a stick or rod. However, a lever by itself is not effective.  It must have something on which to rotate.  This is called a pivot or a fulcrum.

A lever helps to lift weights with less effort. Something or someone must put force (push or pull) on a lever to make it work. The farther the force is from the fulcrum, the easier it is to work the lever. Children on opposite ends of a seesaw lift each other's weight up and down easily. Anyone who has ever turned a handle or used scissors or pincers, has used a lever.

Archimedes, a famous Greek philosopher and scientist, was the first one to describe the law of the lever. That’s why Archimedes said: “Give me a lever long enough and a fulcrum on which to place it and I shall move the world.”

The formula for a lever is Mechanical Advantage=load/effort