« Party Science | Home | Become a Bubbleologist »
Lessons in Leverage
By Linda | March 9, 2008
A “simple machine” is a device for overcoming resistance at one point by applying force at some other point. Simple machines are generally classified into six basic categories:
Levers
Wheel and Axle
Pulleys (Block and Tackle)
Inclined Planes
Wedges
Screws
One or more simple machines are usually found at the heart of all modern machinery.
The following illustration demonstrates one of several ways that a lever can be used to effectively reduce the amount of force needed to lift a load.
The picture below also illustrates this principle.
The wheel acts as the fulcrum on this unintentional lever
Topics: Jokes, Humor & Poetry, Science Factoids, Technology |
March 9th, 2008 at 1:25 pm
[…] fleetvision.org wrote an interesting post today onHere’s a quick excerpt A “simple machine” is a device for overcoming resistance at one point by applying force at some other point. Simple machines are generally classified into six basic categories: Levers Wheel and Axle Pulleys (Block and Tackle) Inclined Planes Wedges Screws One or more simple machines are usually found at the heart of all modern machinery. The following illustration demonstrates one of several ways that a lever can be used to effectively reduce the amount of force needed to lift a load. […]