A machine is any mechanical or organic device that transmits or modifies energy to perform or assist in the performance of tasks. It normally requires some energy source ("input") and accomplishes some sort of work.

People have used mechanisms and machines to amplify their abilities since before written records were available. Generally these devices decrease the amount of force required to do a given amount of work, alter the direction of the force, or transform one form of motion or energy into another.

The mechanical advantage of a simple machine is the ratio between the force it exerts on the load and the input force applied. This does not entirely describe the machine's performance, as force is required to overcome friction as well. The mechanical efficiency of a machine is the ratio of the actual mechanical advantage (AMA) to the ideal mechanical advantage (IMA). Functioning physical machines are always less than 100% efficient.

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Wow today is one of those bad days from newspaper machine taking my money, almost hitting hit by a truck to now.. I hope xmas is better
xThatOneVietx (John T) Fri, 25 Dec 2009 02:28:02 -0000
Wow today is one of those bad days from newspaper machine taking my money, almost hitting hit by a truck to now.. I hope xmas is better
Bad dream about kissing, being pregnant, running away, someone puking on me then trying to kill me, elevator machine and cats.
wenygoh (Weny Goh) Fri, 25 Dec 2009 02:07:06 -0000
Bad dream about kissing, being pregnant, running away, someone puking on me then trying to kill me, elevator machine and cats.
My little cousin got a mystery machine for Christmas. Haha Subscribe to Bad_Machine RSS feed