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Old 09-06-2008, 02:33 PM   #28 (permalink)
jamesqf
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Quote:
Originally Posted by rmay635703 View Post
1. Man can't build small things very well...
Oh? Have you told Intel about this?

Quote:
Best example is comparing a big rig to a train, the train is also much more fuel efficient.
Why's the train energy-efficient, though? Think about it: you have two main sources of frictional loss, air friction and rolling friction. Air friction depends mainly on cross sectional area, and the area of a train is only about 3-4 times that of a semi, no matter how long it is. For rolling friction, instead of a semi's rubber tires flexing on the rough road, you've got solid steel wheels on smooth rails.
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